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Windows Analysis Report
file.exe

Overview

General Information

Sample Name:	file.exe
Analysis ID:	715074
MD5:	e337a4d30d5b3cc3bcf3d3789dad3566
SHA1:	739b485a3633b500c43320e98488538c0bda3106
SHA256:	bddb07a1bc6effa8751ce6b40fc5e86f6c31f0b2403e696c99b522d89dd179dd
Tags:	exeSmokeLoader
Infos:

Detection

SmokeLoader

Score:	100
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Multi AV Scanner detection for submitted file

Benign windows process drops PE files

Malicious sample detected (through community Yara rule)

Yara detected SmokeLoader

System process connects to network (likely due to code injection or exploit)

Detected unpacking (changes PE section rights)

Antivirus detection for URL or domain

Maps a DLL or memory area into another process

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Machine Learning detection for sample

Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))

Deletes itself after installation

Machine Learning detection for dropped file

C2 URLs / IPs found in malware configuration

Creates a thread in another existing process (thread injection)

Hides that the sample has been downloaded from the Internet (zone.identifier)

Checks if the current machine is a virtual machine (disk enumeration)

Uses 32bit PE files

Yara signature match

May sleep (evasive loops) to hinder dynamic analysis

Uses code obfuscation techniques (call, push, ret)

Internet Provider seen in connection with other malware

Sample execution stops while process was sleeping (likely an evasion)

Contains functionality to call native functions

PE file contains executable resources (Code or Archives)

IP address seen in connection with other malware

Creates a DirectInput object (often for capturing keystrokes)

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)

Drops files with a non-matching file extension (content does not match file extension)

Drops PE files

Tries to load missing DLLs

Contains functionality to read the PEB

Uses a known web browser user agent for HTTP communication

Checks if the current process is being debugged

Classification

Process Tree

System is w10x64

file.exe (PID: 5624 cmdline: C:\Users\user\Desktop\file.exe MD5: E337A4D30D5B3CC3BCF3D3789DAD3566)

explorer.exe (PID: 3320 cmdline: C:\Windows\Explorer.EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D)

vbfvrba (PID: 4616 cmdline: C:\Users\user\AppData\Roaming\vbfvrba MD5: E337A4D30D5B3CC3BCF3D3789DAD3566)

vbfvrba (PID: 3312 cmdline: C:\Users\user\AppData\Roaming\vbfvrba MD5: E337A4D30D5B3CC3BCF3D3789DAD3566)

cleanup

Malware Configuration

Threatname: SmokeLoader

{"C2 list": ["http://host-file-host6.com/", "http://host-host-file8.com/"]}

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp	Windows_Trojan_Smokeloader_4e31426e	unknown	unknown	0x6f4:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
0000000E.00000003.446586296.00000000005B0000.00000004.00001000.00020000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp	Windows_Trojan_Smokeloader_4e31426e	unknown	unknown	0x6f4:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
0000000B.00000003.364685451.00000000021B0000.00000004.00001000.00020000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
00000000.00000002.327668635.00000000006B0000.00000040.00001000.00020000.00000000.sdmp	Windows_Trojan_Smokeloader_3687686f	unknown	unknown	0x30d:$a: 0C 8B 45 F0 89 45 C8 8B 45 C8 8B 40 3C 8B 4D F0 8D 44 01 04 89
0000000E.00000002.458435299.00000000005A0000.00000040.00001000.00020000.00000000.sdmp	Windows_Trojan_Smokeloader_3687686f	unknown	unknown	0x30d:$a: 0C 8B 45 F0 89 45 C8 8B 45 C8 8B 40 3C 8B 4D F0 8D 44 01 04 89
00000000.00000003.243844808.00000000006C0000.00000004.00001000.00020000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0000000B.00000002.376837614.00000000006E0000.00000040.00001000.00020000.00000000.sdmp	Windows_Trojan_Smokeloader_3687686f	unknown	unknown	0x30d:$a: 0C 8B 45 F0 89 45 C8 8B 45 C8 8B 40 3C 8B 4D F0 8D 44 01 04 89
00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp	Windows_Trojan_Smokeloader_4e31426e	unknown	unknown	0x6f4:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp	Windows_Trojan_Smokeloader_4e31426e	unknown	unknown	0x2f4:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
00000000.00000002.327934318.00000000008BA000.00000040.00000020.00020000.00000000.sdmp	Windows_Trojan_RedLineStealer_ed346e4c	unknown	unknown	0x4f13:$a: 55 8B EC 8B 45 14 56 57 8B 7D 08 33 F6 89 47 0C 39 75 10 76 15 8B
0000000E.00000002.458600340.00000000005EE000.00000040.00000020.00020000.00000000.sdmp	Windows_Trojan_RedLineStealer_ed346e4c	unknown	unknown	0x4f1b:$a: 55 8B EC 8B 45 14 56 57 8B 7D 08 33 F6 89 47 0C 39 75 10 76 15 8B
00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp	Windows_Trojan_Smokeloader_4e31426e	unknown	unknown	0x2f4:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp	Windows_Trojan_Smokeloader_4e31426e	unknown	unknown	0x2f4:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp	Windows_Trojan_Smokeloader_4e31426e	unknown	unknown	0x2f4:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
0000000B.00000002.376742347.00000000005E9000.00000040.00000020.00020000.00000000.sdmp	Windows_Trojan_RedLineStealer_ed346e4c	unknown	unknown	0x4dc3:$a: 55 8B EC 8B 45 14 56 57 8B 7D 08 33 F6 89 47 0C 39 75 10 76 15 8B
Click to see the 18 entries

Unpacked PEs

Source	Rule	Description	Author
14.2.vbfvrba.400000.0.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
14.3.vbfvrba.5b0000.0.raw.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
11.2.vbfvrba.400000.0.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0.2.file.exe.400000.0.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
14.2.vbfvrba.5a0e67.1.raw.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0.3.file.exe.6c0000.0.raw.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
11.3.vbfvrba.21b0000.0.raw.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
0.2.file.exe.6b0e67.1.raw.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
11.2.vbfvrba.6e0e67.1.raw.unpack	JoeSecurity_SmokeLoader_2	Yara detected SmokeLoader	Joe Security
Click to see the 4 entries

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: file.exe

Virustotal: Detection: 36%

Perma Link

Antivirus detection for URL or domain

Source: http://host-host-file8.com/

URL Reputation: Label: malware

Machine Learning detection for sample

Source: file.exe

Joe Sandbox ML: detected

Machine Learning detection for dropped file

Source: C:\Users\user\AppData\Roaming\vbfvrba

Joe Sandbox ML: detected

Source: 0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp

Malware Configuration Extractor: SmokeLoader {"C2 list": ["http://host-file-host6.com/", "http://host-host-file8.com/"]}

Source: file.exe

Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE

Source: C:\Users\user\Desktop\file.exe

File opened: C:\Windows\SysWOW64\msvcr100.dll

Source:	Binary string: C:\ruvodejet xufututowi.pdb source: file.exe, vbfvrba.1.dr
Source:	Binary string: VC:\ruvodejet xufututowi.pdb source: file.exe, vbfvrba.1.dr

Networking

System process connects to network (likely due to code injection or exploit)

Source: C:\Windows\explorer.exe

Domain query: host-host-file8.com

C2 URLs / IPs found in malware configuration

Source: Malware configuration extractor	URLs: http://host-file-host6.com/
Source: Malware configuration extractor	URLs: http://host-host-file8.com/

Source: Joe Sandbox View

ASN Name: GULFSTREAMUA GULFSTREAMUA

Source: Joe Sandbox View

IP Address: 176.124.192.17 176.124.192.17

Source: global traffic

HTTP traffic detected: POST / HTTP/1.1Connection: Keep-AliveContent-Type: application/x-www-form-urlencodedAccept: */*Referer: http://ucdldn.net/User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; Trident/7.0; rv:11.0) like GeckoContent-Length: 334Host: host-file-host6.com

Source: unknown

DNS traffic detected: queries for: host-file-host6.com

Key, Mouse, Clipboard, Microphone and Screen Capturing

Yara detected SmokeLoader

Source: Yara match	File source: 14.2.vbfvrba.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 14.3.vbfvrba.5b0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.2.vbfvrba.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 14.2.vbfvrba.5a0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.3.file.exe.6c0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.3.vbfvrba.21b0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.6b0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.2.vbfvrba.6e0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000E.00000003.446586296.00000000005B0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000003.364685451.00000000021B0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000003.243844808.00000000006C0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp, type: MEMORY

Source: file.exe, 00000000.00000002.327865550.00000000008AA000.00000004.00000020.00020000.00000000.sdmp

Binary or memory string: <HOOK MODULE="DDRAW.DLL" FUNCTION="DirectDrawCreateEx"/>

System Summary

Malicious sample detected (through community Yara rule)

Source: 0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e Author: unknown
Source: 0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e Author: unknown
Source: 00000000.00000002.327668635.00000000006B0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_3687686f Author: unknown
Source: 0000000E.00000002.458435299.00000000005A0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_3687686f Author: unknown
Source: 0000000B.00000002.376837614.00000000006E0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_3687686f Author: unknown
Source: 00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e Author: unknown
Source: 0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e Author: unknown
Source: 00000000.00000002.327934318.00000000008BA000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_RedLineStealer_ed346e4c Author: unknown
Source: 0000000E.00000002.458600340.00000000005EE000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_RedLineStealer_ed346e4c Author: unknown
Source: 00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e Author: unknown
Source: 0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e Author: unknown
Source: 00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e Author: unknown
Source: 0000000B.00000002.376742347.00000000005E9000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_RedLineStealer_ed346e4c Author: unknown

Source: file.exe

Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE

Source: 0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e reference_sample = 1ce643981821b185b8ad73b798ab5c71c6c40e1f547b8e5b19afdaa4ca2a5174, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = cf6d8615643198bc53527cb9581e217f8a39760c2e695980f808269ebe791277, id = 4e31426e-d62e-4b6d-911b-4223e1f6adef, last_modified = 2021-08-23
Source: 0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e reference_sample = 1ce643981821b185b8ad73b798ab5c71c6c40e1f547b8e5b19afdaa4ca2a5174, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = cf6d8615643198bc53527cb9581e217f8a39760c2e695980f808269ebe791277, id = 4e31426e-d62e-4b6d-911b-4223e1f6adef, last_modified = 2021-08-23
Source: 00000000.00000002.327668635.00000000006B0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_3687686f reference_sample = 8b3014ecd962a335b246f6c70fc820247e8bdaef98136e464b1fdb824031eef7, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = 0f483f9f79ae29b944825c1987366d7b450312f475845e2242a07674580918bc, id = 3687686f-8fbf-4f09-9afa-612ee65dc86c, last_modified = 2021-08-23
Source: 0000000E.00000002.458435299.00000000005A0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_3687686f reference_sample = 8b3014ecd962a335b246f6c70fc820247e8bdaef98136e464b1fdb824031eef7, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = 0f483f9f79ae29b944825c1987366d7b450312f475845e2242a07674580918bc, id = 3687686f-8fbf-4f09-9afa-612ee65dc86c, last_modified = 2021-08-23
Source: 0000000B.00000002.376837614.00000000006E0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_3687686f reference_sample = 8b3014ecd962a335b246f6c70fc820247e8bdaef98136e464b1fdb824031eef7, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = 0f483f9f79ae29b944825c1987366d7b450312f475845e2242a07674580918bc, id = 3687686f-8fbf-4f09-9afa-612ee65dc86c, last_modified = 2021-08-23
Source: 00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e reference_sample = 1ce643981821b185b8ad73b798ab5c71c6c40e1f547b8e5b19afdaa4ca2a5174, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = cf6d8615643198bc53527cb9581e217f8a39760c2e695980f808269ebe791277, id = 4e31426e-d62e-4b6d-911b-4223e1f6adef, last_modified = 2021-08-23
Source: 0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e reference_sample = 1ce643981821b185b8ad73b798ab5c71c6c40e1f547b8e5b19afdaa4ca2a5174, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = cf6d8615643198bc53527cb9581e217f8a39760c2e695980f808269ebe791277, id = 4e31426e-d62e-4b6d-911b-4223e1f6adef, last_modified = 2021-08-23
Source: 00000000.00000002.327934318.00000000008BA000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_RedLineStealer_ed346e4c reference_sample = a91c1d3965f11509d1c1125210166b824a79650f29ea203983fffb5f8900858c, os = windows, severity = x86, creation_date = 2022-02-17, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.RedLineStealer, fingerprint = 834c13b2e0497787e552bb1318664496d286e7cf57b4661e5e07bf1cffe61b82, id = ed346e4c-7890-41ee-8648-f512682fe20e, last_modified = 2022-04-12
Source: 0000000E.00000002.458600340.00000000005EE000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_RedLineStealer_ed346e4c reference_sample = a91c1d3965f11509d1c1125210166b824a79650f29ea203983fffb5f8900858c, os = windows, severity = x86, creation_date = 2022-02-17, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.RedLineStealer, fingerprint = 834c13b2e0497787e552bb1318664496d286e7cf57b4661e5e07bf1cffe61b82, id = ed346e4c-7890-41ee-8648-f512682fe20e, last_modified = 2022-04-12
Source: 00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e reference_sample = 1ce643981821b185b8ad73b798ab5c71c6c40e1f547b8e5b19afdaa4ca2a5174, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = cf6d8615643198bc53527cb9581e217f8a39760c2e695980f808269ebe791277, id = 4e31426e-d62e-4b6d-911b-4223e1f6adef, last_modified = 2021-08-23
Source: 0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e reference_sample = 1ce643981821b185b8ad73b798ab5c71c6c40e1f547b8e5b19afdaa4ca2a5174, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = cf6d8615643198bc53527cb9581e217f8a39760c2e695980f808269ebe791277, id = 4e31426e-d62e-4b6d-911b-4223e1f6adef, last_modified = 2021-08-23
Source: 00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_4e31426e reference_sample = 1ce643981821b185b8ad73b798ab5c71c6c40e1f547b8e5b19afdaa4ca2a5174, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = cf6d8615643198bc53527cb9581e217f8a39760c2e695980f808269ebe791277, id = 4e31426e-d62e-4b6d-911b-4223e1f6adef, last_modified = 2021-08-23
Source: 0000000B.00000002.376742347.00000000005E9000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_RedLineStealer_ed346e4c reference_sample = a91c1d3965f11509d1c1125210166b824a79650f29ea203983fffb5f8900858c, os = windows, severity = x86, creation_date = 2022-02-17, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.RedLineStealer, fingerprint = 834c13b2e0497787e552bb1318664496d286e7cf57b4661e5e07bf1cffe61b82, id = ed346e4c-7890-41ee-8648-f512682fe20e, last_modified = 2022-04-12

Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_0040180C Sleep,NtTerminateProcess,
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_00401818 Sleep,NtTerminateProcess,
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_00401822 Sleep,NtTerminateProcess,
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_00401826 Sleep,NtTerminateProcess,
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_00401834 Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_0040180C Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_00401818 Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_00401822 Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_00401826 Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_00401834 Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_0040180C Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_00401818 Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_00401822 Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_00401826 Sleep,NtTerminateProcess,
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_00401834 Sleep,NtTerminateProcess,

Source: file.exe	Static PE information: Resource name: RT_VERSION type: MIPSEB-LE MIPS-III ECOFF executable not stripped - version 0.79
Source: vbfvrba.1.dr	Static PE information: Resource name: RT_VERSION type: MIPSEB-LE MIPS-III ECOFF executable not stripped - version 0.79

Source: C:\Windows\explorer.exe	Section loaded: taskschd.dll
Source: C:\Windows\explorer.exe	Section loaded: dhcpcsvc6.dll
Source: C:\Windows\explorer.exe	Section loaded: dhcpcsvc.dll
Source: C:\Windows\explorer.exe	Section loaded: ondemandconnroutehelper.dll
Source: C:\Windows\explorer.exe	Section loaded: webio.dll
Source: C:\Windows\explorer.exe	Section loaded: mswsock.dll
Source: C:\Windows\explorer.exe	Section loaded: winnsi.dll
Source: C:\Windows\explorer.exe	Section loaded: ondemandconnroutehelper.dll

Source: file.exe

Virustotal: Detection: 36%

Source: file.exe

Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ

Source: C:\Users\user\Desktop\file.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Source: unknown	Process created: C:\Users\user\Desktop\file.exe C:\Users\user\Desktop\file.exe
Source: unknown	Process created: C:\Users\user\AppData\Roaming\vbfvrba C:\Users\user\AppData\Roaming\vbfvrba
Source: unknown	Process created: C:\Users\user\AppData\Roaming\vbfvrba C:\Users\user\AppData\Roaming\vbfvrba

Source: C:\Windows\explorer.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{0f87369f-a4e5-4cfc-bd3e-73e6154572dd}\InprocServer32

Source: C:\Windows\explorer.exe

File created: C:\Users\user\AppData\Roaming\vbfvrba

Jump to behavior

Source: classification engine

Classification label: mal100.troj.evad.winEXE@3/2@4/1

Source: C:\Users\user\Desktop\file.exe

Code function: 0_2_008BEF41 CreateToolhelp32Snapshot,Module32First,

Source: C:\Users\user\Desktop\file.exe

File opened: C:\Windows\SysWOW64\msvcr100.dll

Source: file.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:	Binary string: C:\ruvodejet xufututowi.pdb source: file.exe, vbfvrba.1.dr
Source:	Binary string: VC:\ruvodejet xufututowi.pdb source: file.exe, vbfvrba.1.dr

Data Obfuscation

Detected unpacking (changes PE section rights)

Source: C:\Users\user\Desktop\file.exe	Unpacked PE file: 0.2.file.exe.400000.0.unpack .text:ER;.data:W;.rsrc:R; vs .text:EW;
Source: C:\Users\user\AppData\Roaming\vbfvrba	Unpacked PE file: 11.2.vbfvrba.400000.0.unpack .text:ER;.data:W;.rsrc:R; vs .text:EW;
Source: C:\Users\user\AppData\Roaming\vbfvrba	Unpacked PE file: 14.2.vbfvrba.400000.0.unpack .text:ER;.data:W;.rsrc:R; vs .text:EW;

Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_004011D0 push ebx; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_004011D7 push ebx; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_004011EB push ebx; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_006B1252 push ebx; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_006B123E push ebx; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_006B1237 push ebx; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_008BFBB7 push ebx; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_008BFBCC push ebx; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_008CA9F2 push cs; iretd
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_008C4A56 pushad ; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_004011D0 push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_004011D7 push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_004011EB push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_006E1252 push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_006E123E push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_006E1237 push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_004011D0 push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_004011D7 push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_004011EB push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_005A1252 push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_005A123E push ebx; iretd
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_005A1237 push ebx; iretd

Source: C:\Windows\explorer.exe

File created: C:\Users\user\AppData\Roaming\vbfvrba

Jump to dropped file

Source: C:\Windows\explorer.exe

File created: C:\Users\user\AppData\Roaming\vbfvrba

Jump to dropped file

Hooking and other Techniques for Hiding and Protection

Deletes itself after installation

Source: C:\Windows\explorer.exe

File deleted: c:\users\user\desktop\file.exe

Jump to behavior

Hides that the sample has been downloaded from the Internet (zone.identifier)

Source: C:\Windows\explorer.exe

File opened: C:\Users\user\AppData\Roaming\vbfvrba:Zone.Identifier read attributes | delete

Malware Analysis System Evasion

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Source: file.exe, 00000000.00000002.327865550.00000000008AA000.00000004.00000020.00020000.00000000.sdmp

Binary or memory string: ASWHOOK

Checks if the current machine is a virtual machine (disk enumeration)

Source: C:\Users\user\Desktop\file.exe	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\Desktop\file.exe	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\Desktop\file.exe	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\Desktop\file.exe	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\Desktop\file.exe	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\Desktop\file.exe	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI
Source: C:\Users\user\AppData\Roaming\vbfvrba	Key enumerated: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\SCSI

Source: C:\Windows\explorer.exe TID: 5132	Thread sleep count: 672 > 30
Source: C:\Windows\explorer.exe TID: 1932	Thread sleep count: 412 > 30
Source: C:\Windows\explorer.exe TID: 1932	Thread sleep time: -41200s >= -30000s
Source: C:\Windows\explorer.exe TID: 5156	Thread sleep count: 350 > 30
Source: C:\Windows\explorer.exe TID: 5156	Thread sleep time: -35000s >= -30000s
Source: C:\Windows\explorer.exe TID: 5892	Thread sleep count: 576 > 30
Source: C:\Windows\explorer.exe TID: 6104	Thread sleep count: 317 > 30
Source: C:\Windows\explorer.exe TID: 6104	Thread sleep time: -31700s >= -30000s
Source: C:\Windows\explorer.exe TID: 5880	Thread sleep count: 248 > 30
Source: C:\Windows\explorer.exe TID: 5216	Thread sleep count: 464 > 30

Source: C:\Windows\explorer.exe	Last function: Thread delayed
Source: C:\Windows\explorer.exe	Last function: Thread delayed

Source: C:\Windows\explorer.exe	Window / User API: threadDelayed 672
Source: C:\Windows\explorer.exe	Window / User API: threadDelayed 412
Source: C:\Windows\explorer.exe	Window / User API: threadDelayed 576
Source: C:\Windows\explorer.exe	Window / User API: threadDelayed 464

Source: C:\Users\user\Desktop\file.exe

Process information queried: ProcessInformation

Source: C:\Users\user\Desktop\file.exe

System information queried: ModuleInformation

Source: explorer.exe, 00000001.00000000.264913549.0000000007AFF000.00000004.00000001.00020000.00000000.sdmp	Binary or memory string: SCSI\Disk&Ven_VMware&Prod_Virtual_disk\5&1ec51bf7&0&000000
Source: explorer.exe, 00000001.00000000.325633709.0000000007B66000.00000004.00000001.00020000.00000000.sdmp	Binary or memory string: SCSI\CDROM&VEN_NECVMWAR&PROD_VMWARE_SATA_CD00\5&280B647&0&0000008
Source: explorer.exe, 00000001.00000000.271656643.000000000F278000.00000004.00000001.00020000.00000000.sdmp	Binary or memory string: \\?\STORAGE#Volume#{e6e9dfc6-98f2-11e9-90ce-806e6f6e6963}#0000000025700000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\?\STORAGE#Volume#{e6e9dfc6-98f2-11e9-90ce-806e6f6e6963}#000000001F400000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\?\STORAGE#Volume#{e6e9dfc6-98f2-11e9-90ce-806e6f6e6963}#0000000026700000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\?\STORAGE#Volume#{e6e9dfc6-98f2-11e9-90ce-806e6f6e6963}#0000000000100000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\?\SCSI#CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00#5&280b647&0&000000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\?\SCSI#CdRom&Ven_Msft&Prod_Virtual_DVD-ROM#2&1f4adffe&0&000001#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}
Source: explorer.exe, 00000001.00000000.296837092.0000000007BB1000.00000004.00000001.00020000.00000000.sdmp	Binary or memory string: \\?\scsi#cdrom&ven_necvmwar&prod_vmware_sata_cd00#5&280b647&0&000000#{53f56308-b6bf-11d0-94f2-00a0c91efb8b}
Source: explorer.exe, 00000001.00000000.259525432.0000000005EF4000.00000004.00000001.00020000.00000000.sdmp	Binary or memory string: \\?\SCSI#CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00#5&280b647&0&000000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}
Source: explorer.exe, 00000001.00000000.296837092.0000000007BB1000.00000004.00000001.00020000.00000000.sdmp	Binary or memory string: \\?\scsi#cdrom&ven_necvmwar&prod_vmware_sata_cd00#5&280b647&0&000000#{53f56308-b6bf-11d0-94f2-00a0c91efb8b}E2%d
Source: explorer.exe, 00000001.00000000.291761489.0000000005F12000.00000004.00000001.00020000.00000000.sdmp	Binary or memory string: SCSI\CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00\5&280b647&0&000000

Anti Debugging

Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))

Source: C:\Users\user\Desktop\file.exe	System information queried: CodeIntegrityInformation
Source: C:\Users\user\AppData\Roaming\vbfvrba	System information queried: CodeIntegrityInformation
Source: C:\Users\user\AppData\Roaming\vbfvrba	System information queried: CodeIntegrityInformation

Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_006B092B mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_006B0D90 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_008BE81E push dword ptr fs:[00000030h]
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_006E092B mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 11_2_006E0D90 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_005A092B mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\AppData\Roaming\vbfvrba	Code function: 14_2_005A0D90 mov eax, dword ptr fs:[00000030h]

Source: C:\Users\user\Desktop\file.exe	Process queried: DebugPort
Source: C:\Users\user\AppData\Roaming\vbfvrba	Process queried: DebugPort
Source: C:\Users\user\AppData\Roaming\vbfvrba	Process queried: DebugPort

HIPS / PFW / Operating System Protection Evasion

Benign windows process drops PE files

Source: C:\Windows\explorer.exe

File created: vbfvrba.1.dr

Jump to dropped file

System process connects to network (likely due to code injection or exploit)

Source: C:\Windows\explorer.exe

Domain query: host-host-file8.com

Maps a DLL or memory area into another process

Source: C:\Users\user\Desktop\file.exe	Section loaded: unknown target: C:\Windows\explorer.exe protection: read write
Source: C:\Users\user\Desktop\file.exe	Section loaded: unknown target: C:\Windows\explorer.exe protection: execute and read
Source: C:\Users\user\AppData\Roaming\vbfvrba	Section loaded: unknown target: C:\Windows\explorer.exe protection: read write
Source: C:\Users\user\AppData\Roaming\vbfvrba	Section loaded: unknown target: C:\Windows\explorer.exe protection: execute and read
Source: C:\Users\user\AppData\Roaming\vbfvrba	Section loaded: unknown target: C:\Windows\explorer.exe protection: read write
Source: C:\Users\user\AppData\Roaming\vbfvrba	Section loaded: unknown target: C:\Windows\explorer.exe protection: execute and read

Creates a thread in another existing process (thread injection)

Source: C:\Users\user\Desktop\file.exe	Thread created: C:\Windows\explorer.exe EIP: 2671930
Source: C:\Users\user\AppData\Roaming\vbfvrba	Thread created: unknown EIP: 2691930
Source: C:\Users\user\AppData\Roaming\vbfvrba	Thread created: unknown EIP: 4531930

Source: explorer.exe, 00000001.00000000.309348259.0000000000B10000.00000002.00000001.00040000.00000000.sdmp, explorer.exe, 00000001.00000000.255414725.0000000000B10000.00000002.00000001.00040000.00000000.sdmp, explorer.exe, 00000001.00000000.286060810.0000000000B10000.00000002.00000001.00040000.00000000.sdmp	Binary or memory string: Program Manager
Source: explorer.exe, 00000001.00000000.296783129.0000000007B83000.00000004.00000001.00020000.00000000.sdmp, explorer.exe, 00000001.00000000.325706644.0000000007B83000.00000004.00000001.00020000.00000000.sdmp, explorer.exe, 00000001.00000000.309348259.0000000000B10000.00000002.00000001.00040000.00000000.sdmp	Binary or memory string: Shell_TrayWnd
Source: explorer.exe, 00000001.00000000.308505060.00000000004C8000.00000004.00000020.00020000.00000000.sdmp, explorer.exe, 00000001.00000000.255215437.00000000004C8000.00000004.00000020.00020000.00000000.sdmp, explorer.exe, 00000001.00000000.309348259.0000000000B10000.00000002.00000001.00040000.00000000.sdmp	Binary or memory string: Progman
Source: explorer.exe, 00000001.00000000.309348259.0000000000B10000.00000002.00000001.00040000.00000000.sdmp, explorer.exe, 00000001.00000000.255414725.0000000000B10000.00000002.00000001.00040000.00000000.sdmp, explorer.exe, 00000001.00000000.286060810.0000000000B10000.00000002.00000001.00040000.00000000.sdmp	Binary or memory string: Progmanlock

Source: C:\Windows\explorer.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid

Stealing of Sensitive Information

Yara detected SmokeLoader

Source: Yara match	File source: 14.2.vbfvrba.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 14.3.vbfvrba.5b0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.2.vbfvrba.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 14.2.vbfvrba.5a0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.3.file.exe.6c0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.3.vbfvrba.21b0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.6b0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.2.vbfvrba.6e0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000E.00000003.446586296.00000000005B0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000003.364685451.00000000021B0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000003.243844808.00000000006C0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp, type: MEMORY

Remote Access Functionality

Yara detected SmokeLoader

Source: Yara match	File source: 14.2.vbfvrba.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 14.3.vbfvrba.5b0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.2.vbfvrba.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 14.2.vbfvrba.5a0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.3.file.exe.6c0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.3.vbfvrba.21b0000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.6b0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 11.2.vbfvrba.6e0e67.1.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000E.00000003.446586296.00000000005B0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000003.364685451.00000000021B0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000003.243844808.00000000006C0000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp, type: MEMORY

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	1 Exploitation for Client Execution	1 DLL Side-Loading	32 Process Injection	11 Masquerading	1 Input Capture	311 Security Software Discovery	Remote Services	1 Input Capture	Exfiltration Over Other Network Medium	2 Non-Application Layer Protocol	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 DLL Side-Loading	12 Virtualization/Sandbox Evasion	LSASS Memory	12 Virtualization/Sandbox Evasion	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	112 Application Layer Protocol	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	32 Process Injection	Security Account Manager	3 Process Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data
Local Accounts	At (Windows)	Logon Script (Mac)	Logon Script (Mac)	1 Hidden Files and Directories	NTDS	1 Application Window Discovery	Distributed Component Object Model	Input Capture	Scheduled Transfer	Protocol Impersonation	SIM Card Swap		Carrier Billing Fraud
Cloud Accounts	Cron	Network Logon Script	Network Logon Script	1 Obfuscated Files or Information	LSA Secrets	3 System Information Discovery	SSH	Keylogging	Data Transfer Size Limits	Fallback Channels	Manipulate Device Communication		Manipulate App Store Rankings or Ratings
Replication Through Removable Media	Launchd	Rc.common	Rc.common	1 Software Packing	Cached Domain Credentials	System Owner/User Discovery	VNC	GUI Input Capture	Exfiltration Over C2 Channel	Multiband Communication	Jamming or Denial of Service		Abuse Accessibility Features
External Remote Services	Scheduled Task	Startup Items	Startup Items	1 DLL Side-Loading	DCSync	Network Sniffing	Windows Remote Management	Web Portal Capture	Exfiltration Over Alternative Protocol	Commonly Used Port	Rogue Wi-Fi Access Points		Data Encrypted for Impact
Drive-by Compromise	Command and Scripting Interpreter	Scheduled Task/Job	Scheduled Task/Job	1 File Deletion	Proc Filesystem	Network Service Scanning	Shared Webroot	Credential API Hooking	Exfiltration Over Symmetric Encrypted Non-C2 Protocol	Application Layer Protocol	Downgrade to Insecure Protocols		Generate Fraudulent Advertising Revenue

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
file.exe	37%	Virustotal		Browse
file.exe	100%	Joe Sandbox ML

Dropped Files

Source	Detection	Scanner	Label	Link
C:\Users\user\AppData\Roaming\vbfvrba	100%	Joe Sandbox ML

Unpacked PE Files

Source	Detection	Scanner	Label	Download
14.3.vbfvrba.5b0000.0.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File
11.2.vbfvrba.400000.0.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File
11.2.vbfvrba.6e0e67.1.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File
0.2.file.exe.400000.0.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File
0.2.file.exe.6b0e67.1.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File
0.3.file.exe.6c0000.0.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File
11.3.vbfvrba.21b0000.0.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File
14.2.vbfvrba.400000.0.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File
14.2.vbfvrba.5a0e67.1.unpack	100%	Avira	TR/Crypt.XPACK.Gen	Download File

Domains

⊘No Antivirus matches

URLs

Source	Detection	Scanner	Label	Link
http://host-file-host6.com/	0%	URL Reputation	safe
http://host-host-file8.com/	100%	URL Reputation	malware

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
host-file-host6.com	176.124.192.17	true	true		unknown
host-host-file8.com	unknown	unknown	true		unknown

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
http://host-file-host6.com/	true	URL Reputation: safe	unknown
http://host-host-file8.com/	true	URL Reputation: malware	unknown

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
176.124.192.17	host-file-host6.com	Russian Federation		59652	GULFSTREAMUA	true

General Information

Joe Sandbox Version:	36.0.0 Rainbow Opal
Analysis ID:	715074
Start date and time:	2022-10-03 15:57:31 +02:00
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 7m 35s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	file.exe
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 104, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	14
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	1
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal100.troj.evad.winEXE@3/2@4/1
EGA Information:	Successful, ratio: 100%
HDC Information:	Successful, ratio: 28.8% (good quality ratio 24.4%) Quality average: 45.2% Quality standard deviation: 27.1%
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Found application associated with file extension: .exe

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, SgrmBroker.exe, conhost.exe, svchost.exe
Excluded domains from analysis (whitelisted): fs.microsoft.com
Not all processes where analyzed, report is missing behavior information

Simulations

Behavior and APIs

Time	Type	Description
15:59:22	Task Scheduler	Run new task: Firefox Default Browser Agent 937156EFB9A900F6 path: C:\Users\user\AppData\Roaming\vbfvrba

Process:	C:\Windows\explorer.exe
File Type:	PE32 executable (GUI) Intel 80386, for MS Windows
Category:	dropped
Size (bytes):	150016
Entropy (8bit):	6.777924709615045
Encrypted:	false
SSDEEP:	3072:0jiakzWt9fGfGXLHuAr+ax7OwtUqzxsaCCSSbO:0j8qbHbKItdWaLV
MD5:	E337A4D30D5B3CC3BCF3D3789DAD3566
SHA1:	739B485A3633B500C43320E98488538C0BDA3106
SHA-256:	BDDB07A1BC6EFFA8751CE6B40FC5E86F6C31F0B2403E696C99B522D89DD179DD
SHA-512:	6C054CFC49CBADF90850F15CF7B6DFE3D801EEFD55E017F212B261FB3E03C4BB37EE94F0B31C2983EE3FC00BE32E90B2642994F24B05D4AA7D8E140EC79205B1
Malicious:	true
Antivirus:	Antivirus: Joe Sandbox ML, Detection: 100%
Reputation:	low
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........}..............N1......N'................D....N ......N0......N5.....Rich............PE..L...4..`.....................6.......L............@.................................y...........................................P........K..........................................................0,..@............................................text............................... ..`.data...............................@....rsrc....K.......L..................@..@................................................................................................................................................................................................................................................................................................................................................................................................................................

C:\Users\user\AppData\Roaming\vbfvrba:Zone.Identifier

Download File

Process:	C:\Windows\explorer.exe
File Type:	ASCII text, with CRLF line terminators
Category:	modified
Size (bytes):	26
Entropy (8bit):	3.95006375643621
Encrypted:	false
SSDEEP:	3:ggPYV:rPYV
MD5:	187F488E27DB4AF347237FE461A079AD
SHA1:	6693BA299EC1881249D59262276A0D2CB21F8E64
SHA-256:	255A65D30841AB4082BD9D0EEA79D49C5EE88F56136157D8D6156AEF11C12309
SHA-512:	89879F237C0C051EBE784D0690657A6827A312A82735DA42DAD5F744D734FC545BEC9642C19D14C05B2F01FF53BC731530C92F7327BB7DC9CDE1B60FB21CD64E
Malicious:	true
Reputation:	high, very likely benign file
Preview:	[ZoneTransfer]....ZoneId=0

Static File Info

General

File type:	PE32 executable (GUI) Intel 80386, for MS Windows
Entropy (8bit):	6.777924709615045
TrID:	Win32 Executable (generic) a (10002005/4) 99.96% Generic Win/DOS Executable (2004/3) 0.02% DOS Executable Generic (2002/1) 0.02% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	file.exe
File size:	150016
MD5:	e337a4d30d5b3cc3bcf3d3789dad3566
SHA1:	739b485a3633b500c43320e98488538c0bda3106
SHA256:	bddb07a1bc6effa8751ce6b40fc5e86f6c31f0b2403e696c99b522d89dd179dd
SHA512:	6c054cfc49cbadf90850f15cf7b6dfe3d801eefd55e017f212b261fb3e03c4bb37ee94f0b31c2983ee3fc00be32e90b2642994f24b05d4aa7d8e140ec79205b1
SSDEEP:	3072:0jiakzWt9fGfGXLHuAr+ax7OwtUqzxsaCCSSbO:0j8qbHbKItdWaLV
TLSH:	6AE3DF2139A0C473C616CA710874D964BB3FF9926B3985477B8C2B2D0F713D25EBA35A
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........}...............N1......N'.................D....N ......N0......N5.....Rich............PE..L...4..`.....................6.....

File Icon


Icon Hash:	32f2c4ccccc692a0

Static PE Info

General

Entrypoint:	0x404c07
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE
DLL Characteristics:	TERMINAL_SERVER_AWARE
Time Stamp:	0x60C1FF34 [Thu Jun 10 12:01:56 2021 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	5
OS Version Minor:	0
File Version Major:	5
File Version Minor:	0
Subsystem Version Major:	5
Subsystem Version Minor:	0
Import Hash:	2d5ec24fb9d2ee4cf8208f9e16125d4f

Entrypoint Preview

Instruction
call 00007F4DC8D091DBh
jmp 00007F4DC8D05D6Dh
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
mov ecx, dword ptr [esp+04h]
test ecx, 00000003h
je 00007F4DC8D05F16h
mov al, byte ptr [ecx]
add ecx, 01h
test al, al
je 00007F4DC8D05F40h
test ecx, 00000003h
jne 00007F4DC8D05EE1h
add eax, 00000000h
lea esp, dword ptr [esp+00000000h]
lea esp, dword ptr [esp+00000000h]
mov eax, dword ptr [ecx]
mov edx, 7EFEFEFFh
add edx, eax
xor eax, FFFFFFFFh
xor eax, edx
add ecx, 04h
test eax, 81010100h
je 00007F4DC8D05EDAh
mov eax, dword ptr [ecx-04h]
test al, al
je 00007F4DC8D05F24h
test ah, ah
je 00007F4DC8D05F16h
test eax, 00FF0000h
je 00007F4DC8D05F05h
test eax, FF000000h
je 00007F4DC8D05EF4h
jmp 00007F4DC8D05EBFh
lea eax, dword ptr [ecx-01h]
mov ecx, dword ptr [esp+04h]
sub eax, ecx
ret
lea eax, dword ptr [ecx-02h]
mov ecx, dword ptr [esp+04h]
sub eax, ecx
ret
lea eax, dword ptr [ecx-03h]
mov ecx, dword ptr [esp+04h]
sub eax, ecx
ret
lea eax, dword ptr [ecx-04h]
mov ecx, dword ptr [esp+04h]
sub eax, ecx
ret
cmp ecx, dword ptr [0042006Ch]
jne 00007F4DC8D05EF4h
rep ret
jmp 00007F4DC8D091C3h
push eax
push dword ptr fs:[00000000h]
lea eax, dword ptr [esp+0Ch]
sub esp, dword ptr [esp+0Ch]
push ebx
push esi
push edi
mov dword ptr [eax], ebp

Rich Headers

Programming Language:

[ASM] VS2008 build 21022
[ C ] VS2008 build 21022
[IMP] VS2005 build 50727
[C++] VS2008 build 21022
[RES] VS2008 build 21022
[LNK] VS2008 build 21022

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0xe10c	0x50	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x17c000	0x4bf8	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x1210	0x1c	.text
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x2c30	0x40	.text
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x1000	0x1d8	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0xdc06	0xde00	False	0.48134853603603606	data	5.874806872478882	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.data	0xf000	0x16c2fc	0x11c00	False	0.8886168573943662	data	7.587752029512684	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.rsrc	0x17c000	0x4bf8	0x4c00	False	0.47774465460526316	data	4.668681479659218	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type
RT_ICON	0x17c2b0	0x8a8	Device independent bitmap graphic, 32 x 64 x 8, image size 1024, 256 important colors
RT_ICON	0x17cb58	0x25a8	Device independent bitmap graphic, 48 x 96 x 32, image size 9216
RT_ICON	0x17f100	0x10a8	Device independent bitmap graphic, 32 x 64 x 32, image size 4096
RT_STRING	0x1803a8	0x42	data
RT_STRING	0x1803f0	0x280	data
RT_STRING	0x180670	0x3ce	data
RT_STRING	0x180a40	0x1b2	data
RT_ACCELERATOR	0x1801d8	0x80	data
RT_GROUP_ICON	0x1801a8	0x30	data
RT_VERSION	0x180268	0x140	MIPSEB-LE MIPS-III ECOFF executable not stripped - version 0.79
None	0x180258	0xa	data

Imports

DLL	Import
KERNEL32.dll	LoadLibraryA, InterlockedPushEntrySList, GetConsoleAliasesW, ReadFile, ReadConsoleW, GetVolumeInformationA, GetComputerNameA, LocalFree, InterlockedDecrement, SetSystemTimeAdjustment, SetLocaleInfoA, FindNextVolumeA, FindCloseChangeNotification, CopyFileExA, MoveFileWithProgressW, VerifyVersionInfoW, LocalSize, FileTimeToDosDateTime, DebugBreak, GlobalGetAtomNameW, IsBadWritePtr, FindResourceA, GetComputerNameExW, GetProcAddress, GetStringTypeW, GetFileTime, GetConsoleAliasesLengthW, GetVolumeNameForVolumeMountPointA, DeleteVolumeMountPointA, GetCPInfo, PostQueuedCompletionStatus, MoveFileWithProgressA, CopyFileA, lstrcpynW, WriteConsoleW, GetBinaryTypeA, WriteConsoleOutputW, GetCommandLineA, InterlockedIncrement, CreateActCtxW, FormatMessageA, GetModuleHandleW, GetModuleHandleA, LeaveCriticalSection, GetStringTypeExA, OpenMutexW, FindResourceW, RtlCaptureContext, InterlockedExchange, InitializeCriticalSectionAndSpinCount, DeleteFiber, InterlockedExchangeAdd, EnumDateFormatsA, GetPrivateProfileStructA, GetNamedPipeHandleStateW, RegisterWaitForSingleObject, LocalAlloc, QueryMemoryResourceNotification, SetLastError, GetProcessPriorityBoost, GetMailslotInfo, HeapWalk, SetFilePointer, SetConsoleMode, RaiseException, RtlUnwind, GetLastError, MoveFileA, DeleteFileA, GetStartupInfoA, HeapAlloc, HeapFree, TerminateProcess, GetCurrentProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter, IsDebuggerPresent, TlsGetValue, TlsAlloc, TlsSetValue, TlsFree, GetCurrentThreadId, Sleep, ExitProcess, WriteFile, GetStdHandle, GetModuleFileNameA, FreeEnvironmentStringsA, GetEnvironmentStrings, FreeEnvironmentStringsW, WideCharToMultiByte, GetEnvironmentStringsW, SetHandleCount, GetFileType, DeleteCriticalSection, HeapCreate, VirtualFree, QueryPerformanceCounter, GetTickCount, GetCurrentProcessId, GetSystemTimeAsFileTime, EnterCriticalSection, VirtualAlloc, HeapReAlloc, HeapSize, GetACP, GetOEMCP, IsValidCodePage, GetLocaleInfoA, GetStringTypeA, MultiByteToWideChar, LCMapStringA, LCMapStringW
USER32.dll	CharUpperBuffW
WINHTTP.dll	WinHttpCreateUrl

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 3, 2022 15:59:23.101623058 CEST	49703	80	192.168.2.7	176.124.192.17
Oct 3, 2022 15:59:23.158726931 CEST	80	49703	176.124.192.17	192.168.2.7
Oct 3, 2022 15:59:23.158838034 CEST	49703	80	192.168.2.7	176.124.192.17
Oct 3, 2022 15:59:23.158982992 CEST	49703	80	192.168.2.7	176.124.192.17
Oct 3, 2022 15:59:23.159025908 CEST	49703	80	192.168.2.7	176.124.192.17
Oct 3, 2022 15:59:23.215492964 CEST	80	49703	176.124.192.17	192.168.2.7
Oct 3, 2022 15:59:23.215522051 CEST	80	49703	176.124.192.17	192.168.2.7
Oct 3, 2022 15:59:23.225384951 CEST	80	49703	176.124.192.17	192.168.2.7
Oct 3, 2022 15:59:23.225481987 CEST	49703	80	192.168.2.7	176.124.192.17
Oct 3, 2022 15:59:23.227018118 CEST	49703	80	192.168.2.7	176.124.192.17
Oct 3, 2022 15:59:23.283112049 CEST	80	49703	176.124.192.17	192.168.2.7

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 3, 2022 15:59:22.755625010 CEST	59477	53	192.168.2.7	8.8.8.8
Oct 3, 2022 15:59:23.084805012 CEST	53	59477	8.8.8.8	192.168.2.7
Oct 3, 2022 15:59:23.237786055 CEST	55752	53	192.168.2.7	8.8.8.8
Oct 3, 2022 15:59:24.234636068 CEST	55752	53	192.168.2.7	8.8.8.8
Oct 3, 2022 15:59:25.265894890 CEST	55752	53	192.168.2.7	8.8.8.8
Oct 3, 2022 15:59:27.263375998 CEST	53	55752	8.8.8.8	192.168.2.7
Oct 3, 2022 15:59:28.261560917 CEST	53	55752	8.8.8.8	192.168.2.7
Oct 3, 2022 15:59:29.293272972 CEST	53	55752	8.8.8.8	192.168.2.7

ICMP Packets

Timestamp	Source IP	Dest IP	Checksum	Code	Type
Oct 3, 2022 15:59:28.261730909 CEST	192.168.2.7	8.8.8.8	cffa	(Port unreachable)	Destination Unreachable
Oct 3, 2022 15:59:29.293365955 CEST	192.168.2.7	8.8.8.8	cffa	(Port unreachable)	Destination Unreachable

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Oct 3, 2022 15:59:22.755625010 CEST	192.168.2.7	8.8.8.8	0x1f55	Standard query (0)	host-file-host6.com	A (IP address)	IN (0x0001)	false
Oct 3, 2022 15:59:23.237786055 CEST	192.168.2.7	8.8.8.8	0xb9d5	Standard query (0)	host-host-file8.com	A (IP address)	IN (0x0001)	false
Oct 3, 2022 15:59:24.234636068 CEST	192.168.2.7	8.8.8.8	0xb9d5	Standard query (0)	host-host-file8.com	A (IP address)	IN (0x0001)	false
Oct 3, 2022 15:59:25.265894890 CEST	192.168.2.7	8.8.8.8	0xb9d5	Standard query (0)	host-host-file8.com	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Oct 3, 2022 15:59:23.084805012 CEST	8.8.8.8	192.168.2.7	0x1f55	No error (0)	host-file-host6.com		176.124.192.17	A (IP address)	IN (0x0001)	false
Oct 3, 2022 15:59:27.263375998 CEST	8.8.8.8	192.168.2.7	0xb9d5	Server failure (2)	host-host-file8.com	none	none	A (IP address)	IN (0x0001)	false
Oct 3, 2022 15:59:28.261560917 CEST	8.8.8.8	192.168.2.7	0xb9d5	Server failure (2)	host-host-file8.com	none	none	A (IP address)	IN (0x0001)	false
Oct 3, 2022 15:59:29.293272972 CEST	8.8.8.8	192.168.2.7	0xb9d5	Server failure (2)	host-host-file8.com	none	none	A (IP address)	IN (0x0001)	false

HTTP Request Dependency Graph

ucdldn.net

host-file-host6.com

HTTP Packets

Session ID	Source IP	Source Port	Destination IP	Destination Port	Process
0	192.168.2.7	49703	176.124.192.17	80	C:\Windows\explorer.exe

Timestamp	kBytes transferred	Direction	Data
Oct 3, 2022 15:59:23.158982992 CEST	103	OUT	POST / HTTP/1.1 Connection: Keep-Alive Content-Type: application/x-www-form-urlencoded Accept: / Referer: http://ucdldn.net/ User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; Trident/7.0; rv:11.0) like Gecko Content-Length: 334 Host: host-file-host6.com
Oct 3, 2022 15:59:23.225384951 CEST	104	IN	HTTP/1.1 200 OK Server: nginx/1.20.1 Date: Mon, 03 Oct 2022 13:59:23 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: close Data Raw: 66 0d 0a 59 6f 75 72 20 49 50 20 62 6c 6f 63 6b 65 64 0d 0a 30 0d 0a 0d 0a Data Ascii: fYour IP blocked0

Target ID:	0
Start time:	15:58:26
Start date:	03/10/2022
Path:	C:\Users\user\Desktop\file.exe
Wow64 process (32bit):	true
Commandline:	C:\Users\user\Desktop\file.exe
Imagebase:	0x400000
File size:	150016 bytes
MD5 hash:	E337A4D30D5B3CC3BCF3D3789DAD3566
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: Windows_Trojan_Smokeloader_3687686f, Description: unknown, Source: 00000000.00000002.327668635.00000000006B0000.00000040.00001000.00020000.00000000.sdmp, Author: unknown Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 00000000.00000003.243844808.00000000006C0000.00000004.00001000.00020000.00000000.sdmp, Author: Joe Security Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_4e31426e, Description: unknown, Source: 00000000.00000002.327792065.0000000000860000.00000004.00000800.00020000.00000000.sdmp, Author: unknown Rule: Windows_Trojan_RedLineStealer_ed346e4c, Description: unknown, Source: 00000000.00000002.327934318.00000000008BA000.00000040.00000020.00020000.00000000.sdmp, Author: unknown Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_4e31426e, Description: unknown, Source: 00000000.00000002.327822813.0000000000881000.00000004.10000000.00040000.00000000.sdmp, Author: unknown
Reputation:	low

Analysis Process: explorer.exePID: 3320, Parent PID: 5624

General

Target ID:	1
Start time:	15:58:34
Start date:	03/10/2022
Path:	C:\Windows\explorer.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\Explorer.EXE
Imagebase:	0x7ff75ed40000
File size:	3933184 bytes
MD5 hash:	AD5296B280E8F522A8A897C96BAB0E1D
Has elevated privileges:	false
Has administrator privileges:	false
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_4e31426e, Description: unknown, Source: 00000001.00000000.316092532.0000000002671000.00000020.80000000.00040000.00000000.sdmp, Author: unknown
Reputation:	high

Analysis Process: vbfvrbaPID: 4616, Parent PID: 1100

General

Target ID:	11
Start time:	15:59:22
Start date:	03/10/2022
Path:	C:\Users\user\AppData\Roaming\vbfvrba
Wow64 process (32bit):	true
Commandline:	C:\Users\user\AppData\Roaming\vbfvrba
Imagebase:	0x400000
File size:	150016 bytes
MD5 hash:	E337A4D30D5B3CC3BCF3D3789DAD3566
Has elevated privileges:	false
Has administrator privileges:	false
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_4e31426e, Description: unknown, Source: 0000000B.00000002.377030181.00000000021F0000.00000004.00000800.00020000.00000000.sdmp, Author: unknown Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 0000000B.00000003.364685451.00000000021B0000.00000004.00001000.00020000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_3687686f, Description: unknown, Source: 0000000B.00000002.376837614.00000000006E0000.00000040.00001000.00020000.00000000.sdmp, Author: unknown Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_4e31426e, Description: unknown, Source: 0000000B.00000002.377400822.0000000002231000.00000004.10000000.00040000.00000000.sdmp, Author: unknown Rule: Windows_Trojan_RedLineStealer_ed346e4c, Description: unknown, Source: 0000000B.00000002.376742347.00000000005E9000.00000040.00000020.00020000.00000000.sdmp, Author: unknown
Antivirus matches:	Detection: 100%, Joe Sandbox ML
Reputation:	low

Analysis Process: vbfvrbaPID: 3312, Parent PID: 1100

General

Target ID:	14
Start time:	16:00:01
Start date:	03/10/2022
Path:	C:\Users\user\AppData\Roaming\vbfvrba
Wow64 process (32bit):	true
Commandline:	C:\Users\user\AppData\Roaming\vbfvrba
Imagebase:	0x400000
File size:	150016 bytes
MD5 hash:	E337A4D30D5B3CC3BCF3D3789DAD3566
Has elevated privileges:	false
Has administrator privileges:	false
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_4e31426e, Description: unknown, Source: 0000000E.00000002.458450131.00000000005B0000.00000004.00000800.00020000.00000000.sdmp, Author: unknown Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 0000000E.00000003.446586296.00000000005B0000.00000004.00001000.00020000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_3687686f, Description: unknown, Source: 0000000E.00000002.458435299.00000000005A0000.00000040.00001000.00020000.00000000.sdmp, Author: unknown Rule: JoeSecurity_SmokeLoader_2, Description: Yara detected SmokeLoader, Source: 0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Smokeloader_4e31426e, Description: unknown, Source: 0000000E.00000002.458781769.00000000021D1000.00000004.10000000.00040000.00000000.sdmp, Author: unknown Rule: Windows_Trojan_RedLineStealer_ed346e4c, Description: unknown, Source: 0000000E.00000002.458600340.00000000005EE000.00000040.00000020.00020000.00000000.sdmp, Author: unknown
Reputation:	low

Disassembly

⊘No disassembly

Description:	Adversaries may exploit software vulnerabilities in client applications to execute code. Vulnerabilities can exist in software due to unsecure coding practices that can lead to unanticipated behavior. Adversaries can take advantage of certain vulnerabilities through targeted exploitation for the purpose of arbitrary code execution. Oftentimes the most valuable exploits to an offensive toolkit are those that can be used to obtain code execution on a remote system because they can be used to gain access to that system. Users will expect to see files related to the applications they commonly used to do work, so they are a useful target for exploit research and development because of their high utility.
Tactics:	Execution
Data Sources:	Anti-virus, Process monitoring, System calls
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may execute their own malicious payloads by hijacking the library manifest used to load DLLs. Adversaries may take advantage of vague references in the library manifest of a program by replacing a legitimate library with a malicious one, causing the operating system to load their malicious library when it is called for by the victim program.
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	Loaded DLLs, Process monitoring, Process use of network
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, DLL monitoring, File monitoring, Named Pipes, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may set files and directories to be hidden to evade detection mechanisms. To prevent normal users from accidentally changing special files on a system, most operating systems have the concept of a ‘hidden’ file. These files don’t show up when a user browses the file system with a GUI or when using normal commands on the command line. Users must explicitly ask to show the hidden files either via a series of Graphical User Interface (GUI) prompts or with command line switches ( `dir /a` for Windows and `ls –a` for Linux and macOS).
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, Email gateway, Environment variable, File monitoring, Malware reverse engineering, Network intrusion detection system, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, SSL/TLS inspection, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may perform software packing or virtual machine software protection to conceal their code. Software packing is a method of compressing or encrypting an executable. Packing an executable changes the file signature in an attempt to avoid signature-based detection. Most decompression techniques decompress the executable code in memory. Virtual machine software protection translates an executable's original code into a special format that only a special virtual machine can run. A virtual machine is then called to run this code.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata
Platforms:	macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use methods of capturing user input to obtain credentials or collect information. During normal system usage, users often provide credentials to various different locations, such as login pages/portals or system dialog boxes. Input capture mechanisms may be transparent to the user (e.g. Credential API Hooking ) or rely on deceiving the user into providing input into what they believe to be a genuine service (e.g. Web Portal Capture ).
Tactics:	Collection, Credential Access
Data Sources:	API monitoring, Binary file metadata, DLL monitoring, Kernel drivers, Loaded DLLs, PowerShell logs, Process command-line parameters, Process monitoring, User interface, Windows Registry, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, File monitoring, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use a non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Host network interface, Netflow/Enclave netflow, Network intrusion detection system, Network protocol analysis, Packet capture, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	DNS records, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report file.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Threatname: SmokeLoader

Yara Signatures

Memory Dumps

Unpacked PEs

Sigma Signatures

Snort Signatures

Joe Sandbox Signatures

AV Detection

Compliance

Networking

Key, Mouse, Clipboard, Microphone and Screen Capturing

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

HIPS / PFW / Operating System Protection Evasion

Language, Device and Operating System Detection

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted URLs

World Map of Contacted IPs

Public IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\Users\user\AppData\Roaming\vbfvrba

C:\Users\user\AppData\Roaming\vbfvrba:Zone.Identifier

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Rich Headers

Data Directories

Sections

Resources

Imports

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

ICMP Packets

Windows Analysis Report
file.exe