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Windows Analysis Report
LwNdQo4zIk.exe

Overview

General Information

Sample Name:	LwNdQo4zIk.exe
Analysis ID:	778226
MD5:	3ccd6b369eb1dde57d181e7550bd7268
SHA1:	aee399e263c838570c00133feab275b81009e12a
SHA256:	f5717aef9a4323816387603920b652a94ac0d9cedef36391cedd9cdcbfef7f60
Tags:	32exe
Infos:

Detection

Score:	84
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Multi AV Scanner detection for submitted file

Detected unpacking (changes PE section rights)

Malicious sample detected (through community Yara rule)

Detected unpacking (overwrites its own PE header)

Multi AV Scanner detection for dropped file

Machine Learning detection for sample

Uses 32bit PE files

Yara signature match

Antivirus or Machine Learning detection for unpacked file

Drops PE files

Uses code obfuscation techniques (call, push, ret)

Detected potential crypto function

Dropped file seen in connection with other malware

Found large amount of non-executed APIs

Uses Microsoft's Enhanced Cryptographic Provider

Classification

Process Tree

System is w10x64

LwNdQo4zIk.exe (PID: 1792 cmdline: C:\Users\user\Desktop\LwNdQo4zIk.exe MD5: 3CCD6B369EB1DDE57D181E7550BD7268)

rundll32.exe (PID: 5472 cmdline: "C:\Windows\system32\rundll32.exe" "C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp",Uprsprhaot MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D)

cleanup

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.309288628.0000000002330000.00000040.00001000.00020000.00000000.sdmp	Windows_Trojan_Smokeloader_3687686f	unknown	unknown	0x30d:$a: 0C 8B 45 F0 89 45 C8 8B 45 C8 8B 40 3C 8B 4D F0 8D 44 01 04 89
00000000.00000002.309087545.0000000002254000.00000040.00000800.00020000.00000000.sdmp	Windows_Trojan_RedLineStealer_ed346e4c	unknown	unknown	0x798:$a: 55 8B EC 8B 45 14 56 57 8B 7D 08 33 F6 89 47 0C 39 75 10 76 15 8B

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: LwNdQo4zIk.exe

Virustotal: Detection: 49%

Perma Link

Multi AV Scanner detection for dropped file

Source: C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp	ReversingLabs: Detection: 50%
Source: C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp	Virustotal: Detection: 64%			Perma Link

Machine Learning detection for sample

Source: LwNdQo4zIk.exe

Joe Sandbox ML: detected

Source: 0.2.LwNdQo4zIk.exe.400000.0.unpack

Avira: Label: TR/Crypt.ZPACK.Gen2

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004A7759 CryptAcquireContextA,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004AB9D1 CryptDeriveKey,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004B01AF CryptExportKey,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004B035E CryptDestroyKey,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004B056E CryptReleaseContext,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004BA67F CryptAcquireContextA,CryptAcquireContextA,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004AF6E3 CryptExportKey,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004BA75C CryptEncrypt,CryptEncrypt,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004BA7D8 CryptDestroyKey,CryptDestroyKey,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004BA80E CryptReleaseContext,CryptReleaseContext,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004BA9DE CryptBinaryToStringA,CryptBinaryToStringA,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004C2A13 CryptBinaryToStringA,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004AFA91 CryptExportKey,CryptExportKey,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004A5B70 CryptBinaryToStringA,
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004AEB1B CryptGenKey,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D96B6D8 CryptHashData,LoadLibraryW,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D979484 CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D980486 CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D980CD9 CryptDestroyKey,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D987CD1 CryptReleaseContext,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D99140C CryptDeriveKey,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D97279D HttpSendRequestW,CryptReleaseContext,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D973F01 CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D968F2B CryptDeriveKey,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D9D9750 CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D98AF62 CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D9646B5 CryptEncrypt,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D972EF8 GetProcAddress,CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D9EC13D CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D96C080 CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D97E812 CryptEncrypt,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D989035 CryptReleaseContext,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D980283 CryptReleaseContext,GetProcAddress,GetProcAddress,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D987ADA CryptDeriveKey,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D96EAE5 CryptGetHashParam,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D98321F CryptHashData,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D971A58 CryptEncrypt,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D9B6A70 CryptEncrypt,
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D96CA64 CryptEncrypt,

Compliance

Detected unpacking (overwrites its own PE header)

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

Unpacked PE file: 0.2.LwNdQo4zIk.exe.400000.0.unpack

Source: LwNdQo4zIk.exe

Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

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

Source:	Binary string: C:\ruko\kusugu8-fu.pdb source: LwNdQo4zIk.exe
Source:	Binary string: >h6C:\ruko\kusugu8-fu.pdb source: LwNdQo4zIk.exe

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

Code function: 0_2_004B7085 InternetReadFile,

System Summary

Malicious sample detected (through community Yara rule)

Source: 00000000.00000002.309288628.0000000002330000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Smokeloader_3687686f Author: unknown
Source: 00000000.00000002.309087545.0000000002254000.00000040.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_RedLineStealer_ed346e4c Author: unknown

Source: LwNdQo4zIk.exe

Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE

Source: 00000000.00000002.309288628.0000000002330000.00000040.00001000.00020000.00000000.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: 00000000.00000002.309087545.0000000002254000.00000040.00000800.00020000.00000000.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\LwNdQo4zIk.exe	Code function: 0_2_004FA0B0
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004B4115
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004AB2C2
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004C13A5
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004DE3A7
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004A067F
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004DD9E8
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D99213A
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D9A822C
Source: C:\Windows\SysWOW64\rundll32.exe	Code function: 1_2_6D96CA64

Source: Joe Sandbox View

Dropped File: C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp 20DC61C5456EA5756F432AEBECF74660ACEBF5ACE0F7C8D1B360757ED79075D8

Source: LwNdQo4zIk.exe

Static PE information: Section: .data ZLIB complexity 0.9918356461560528

Source: LwNdQo4zIk.exe

Virustotal: Detection: 49%

Source: LwNdQo4zIk.exe

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

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

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

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

Code function: 0_2_004B1333 CreateToolhelp32Snapshot,CreateToolhelp32Snapshot,

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

Process created: C:\Windows\SysWOW64\rundll32.exe "C:\Windows\system32\rundll32.exe" "C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp",Uprsprhaot

Source: unknown	Process created: C:\Users\user\Desktop\LwNdQo4zIk.exe C:\Users\user\Desktop\LwNdQo4zIk.exe
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Process created: C:\Windows\SysWOW64\rundll32.exe "C:\Windows\system32\rundll32.exe" "C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp",Uprsprhaot
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Process created: C:\Windows\SysWOW64\rundll32.exe "C:\Windows\system32\rundll32.exe" "C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp",Uprsprhaot

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

File created: C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp

Jump to behavior

Source: classification engine

Classification label: mal84.evad.winEXE@3/1@0/0

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

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

Source: LwNdQo4zIk.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:	Binary string: C:\ruko\kusugu8-fu.pdb source: LwNdQo4zIk.exe
Source:	Binary string: >h6C:\ruko\kusugu8-fu.pdb source: LwNdQo4zIk.exe

Data Obfuscation

Detected unpacking (changes PE section rights)

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

Unpacked PE file: 0.2.LwNdQo4zIk.exe.400000.0.unpack .text:ER;.data:W;.rsrc:R; vs .text:ER;.rdata:R;.data:W;.reloc:R;

Detected unpacking (overwrites its own PE header)

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

Unpacked PE file: 0.2.LwNdQo4zIk.exe.400000.0.unpack

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004F7054 push 004E123Eh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004F0321 push 004ED2FBh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004D6483 push 0046B803h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004D85D5 push 004C899Fh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004EB75E push 004D3CB3h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004A7759 push dword ptr [004FCE43h]; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004EA92F push 004DAC2Fh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004F59CA push 004B1D5Fh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004AB9D1 push 0046C15Ah; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_0046FE63 push 00469E02h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004C8FA2 push 004ADFCDh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004C8FA2 push 004B29F4h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_00491044 push 0046B803h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004F3042 push 004BACA2h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_0047E048 push 004F3C92h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004A5057 push 004A4A45h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004AC057 push 004A024Ch; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_00494069 push 0046CDFCh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_0049B068 push 0046CDFCh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_0046D063 push 0046AD57h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_0049806C push dword ptr [004FC7DBh]; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004C5069 push 004ADFCDh; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_0046F07F push dword ptr [004FD207h]; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_0047B07B push 00469E02h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004D300B push dword ptr [004FD567h]; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_00480001 push dword ptr [004FC7DBh]; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004CD000 push 004A0557h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004B8005 push 004AC2A1h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_00474016 push 0046C15Ah; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004B701A push 004F3C92h; ret
Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	Code function: 0_2_004D1013 push 004B06B3h; ret

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

File created: C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp

Jump to dropped file

Source: C:\Windows\SysWOW64\rundll32.exe

Process information set: NOOPENFILEERRORBOX

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe	API coverage: 9.2 %
Source: C:\Windows\SysWOW64\rundll32.exe	API coverage: 3.4 %

Source: rundll32.exe, 00000001.00000002.689792009.000000006DA0B000.00000004.00000001.01000000.00000004.sdmp	Binary or memory string: NtSetInformationWorkerFactoryTpSetDefaultPoolStackInformationDosDateTimeToFileTimeSetCurrentDirectoryWHkOleRegisterObjectSetProgmanW
Source: LwNdQo4zIk.exe, 00000000.00000002.309915707.00000000030C0000.00000004.00001000.00020000.00000000.sdmp, Pyupydeoe.tmp.0.dr	Binary or memory string: #NtSetInformationWorkerFactoryTpSetDefaultPoolStackInformationDosDateTimeToFileTimeSetCurrentDirectoryWHkOleRegisterObjectSetProgmanWindowMicrosoft.Security.ApplicationId.Wizards.AutomaticRuleGenerationWizard.ni.dllSystem.Collections.dllInkSeg.dll0123456789abcdefCNB_0336.DLLMicrosoft.Windows.Diagnosis.Commands.WriteDiagProgress.dllmsscp.dllOSProvider.dllapi-ms-win-core-localization-l1-1-0.dllmscorier.dll0123456789abcdef
Source: rundll32.exe, 00000001.00000002.689792009.000000006DA0B000.00000004.00000001.01000000.00000004.sdmp	Binary or memory string: SetProgmanW
Source: LwNdQo4zIk.exe, 00000000.00000002.309915707.00000000030C0000.00000004.00001000.00020000.00000000.sdmp, Pyupydeoe.tmp.0.dr	Binary or memory string: SetProgmanWindow

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

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

Source: C:\Users\user\Desktop\LwNdQo4zIk.exe

Code function: 0_2_004ADA35 GetLocalTime,

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	Windows Management Instrumentation	Path Interception	2 Process Injection	1 Rundll32	OS Credential Dumping	1 System Time Discovery	Remote Services	1 Archive Collected Data	Exfiltration Over Other Network Medium	2 Encrypted Channel	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	22 Software Packing	LSASS Memory	1 Security Software Discovery	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	1 Ingress Tool Transfer	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	2 Process Injection	Security Account Manager	2 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 Obfuscated Files or Information	NTDS	3 System Information Discovery	Distributed Component Object Model	Input Capture	Scheduled Transfer	Protocol Impersonation	SIM Card Swap		Carrier Billing Fraud

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

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
LwNdQo4zIk.exe	49%	Virustotal		Browse
LwNdQo4zIk.exe	100%	Joe Sandbox ML

Dropped Files

Source	Detection	Scanner	Label	Link
C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp	100%	Joe Sandbox ML
C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp	50%	ReversingLabs	Win32.Trojan.Lazy
C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp	64%	Virustotal		Browse

Unpacked PE Files

Source	Detection	Scanner	Label	Download
0.2.LwNdQo4zIk.exe.2330e67.1.unpack	100%	Avira	HEUR/AGEN.1215478	Download File
0.2.LwNdQo4zIk.exe.400000.0.unpack	100%	Avira	TR/Crypt.ZPACK.Gen2	Download File
0.3.LwNdQo4zIk.exe.2450000.0.unpack	100%	Avira	HEUR/AGEN.1215478	Download File

Domains and IPs

General Information

Joe Sandbox Version:	36.0.0 Rainbow Opal
Analysis ID:	778226
Start date and time:	2023-01-05 08:51:27 +01:00
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 7m 21s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	LwNdQo4zIk.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
Run name:	Run with higher sleep bypass
Number of analysed new started processes analysed:	7
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal84.evad.winEXE@3/1@0/0
EGA Information:	Successful, ratio: 100%
HDC Information:	Failed
HCA Information:	Failed
Cookbook Comments:	Found application associated with file extension: .exe Sleeps bigger than 100000000ms are automatically reduced to 1000ms

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, audiodg.exe, WMIADAP.exe, conhost.exe, backgroundTaskHost.exe
Not all processes where analyzed, report is missing behavior information

Joe Sandbox View / Context

Created / dropped Files

C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp

Download File

Process:	C:\Users\user\Desktop\LwNdQo4zIk.exe
File Type:	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Category:	dropped
Size (bytes):	803328
Entropy (8bit):	6.89627808323015
Encrypted:	false
SSDEEP:	24576:l8Jr+SgWH5UB/VdYQ/N7WqpWaQxYZYBsFn:OJrSBYqLY
MD5:	C50C2F17112B6C6B0892CB2C1F502108
SHA1:	3DD1444384BF790F5AA90AE95EF7745FA4CFAF72
SHA-256:	20DC61C5456EA5756F432AEBECF74660ACEBF5ACE0F7C8D1B360757ED79075D8
SHA-512:	BFBFC3A13816A12E25C373F6739215B9DFF559FECFDF26C3358A452BDC833B6EAA64BBAE316F4B29B9E9CE802E9F50C66B533C8C3C1B372025A7F0B7D8B452F1
Malicious:	true
Antivirus:	Antivirus: Joe Sandbox ML, Detection: 100% Antivirus: ReversingLabs, Detection: 50% Antivirus: Virustotal, Detection: 64%, Browse
Reputation:	low
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......e:..![.@![.@![.@.,.A&[.@.,.A [.@L..A"[.@![.@5[.@.D.@([.@...A [.@...A [.@...A [.@Rich![.@................PE..L.....c...........!.........................................................p............@.............................@.......<................................{......................................................@............................text...p........................... ..`.rdata..............................@..@.data...01.......2..................@....reloc...{.......\|..................@..B........................................................................................................................................................................................................................................................................................................................................................................

GetConsoleAliasW, GetModuleHandleW, CreateDirectoryExW, ReadConsoleInputW, GetTempPathW, GetSystemDirectoryW, RemoveDirectoryW, OutputDebugStringA, GetProcAddress, LocalAlloc, GetBinaryTypeA, SearchPathA, VerifyVersionInfoA, SetProcessPriorityBoost, EndUpdateResourceA, FindNextFileW, FindFirstVolumeA, LocalShrink, GlobalFlags, _llseek, UpdateResourceA, CreateActCtxW, CopyFileW, AddConsoleAliasW, CreateMutexA, GetCurrentActCtx, GetDiskFreeSpaceA, MoveFileW, GetLogicalDriveStringsA, SetEvent, MoveFileExA, CreateMailslotA, WriteConsoleInputA, TerminateThread, GetCurrentProcess, RtlCaptureContext, InterlockedCompareExchange, GetFileTime, lstrcatA, FindFirstFileW, FreeEnvironmentStringsA, SetErrorMode, InterlockedExchangeAdd, MoveFileWithProgressA, GetTickCount, SetLastError, GetPrivateProfileStructW, VerSetConditionMask, LoadLibraryA, GetLastError, DeleteFileA, GetStartupInfoW, TerminateProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter, IsDebuggerPresent, GetModuleHandleA, HeapFree, HeapAlloc, EnterCriticalSection, LeaveCriticalSection, SetHandleCount, GetStdHandle, GetFileType, GetStartupInfoA, DeleteCriticalSection, Sleep, ExitProcess, WriteFile, GetModuleFileNameA, GetModuleFileNameW, FreeEnvironmentStringsW, GetEnvironmentStringsW, GetCommandLineW, TlsGetValue, TlsAlloc, TlsSetValue, TlsFree, InterlockedIncrement, GetCurrentThreadId, InterlockedDecrement, HeapCreate, VirtualFree, QueryPerformanceCounter, GetCurrentProcessId, GetSystemTimeAsFileTime, GetCPInfo, GetACP, GetOEMCP, IsValidCodePage, RaiseException, VirtualAlloc, HeapReAlloc, SetFilePointer, WideCharToMultiByte, GetConsoleCP, GetConsoleMode, InitializeCriticalSectionAndSpinCount, RtlUnwind, MultiByteToWideChar, LCMapStringA, LCMapStringW, GetStringTypeA, GetStringTypeW, GetLocaleInfoA, FlushFileBuffers, SetStdHandle, WriteConsoleA, GetConsoleOutputCP, WriteConsoleW, ReadFile, HeapSize, CloseHandle, CreateFileA

GDI32.dll

SetBrushOrgEx

Possible Origin

Language of compilation system	Country where language is spoken	Map
Serbian	Italy

Target ID:	0
Start time:	08:52:18
Start date:	05/01/2023
Path:	C:\Users\user\Desktop\LwNdQo4zIk.exe
Wow64 process (32bit):	true
Commandline:	C:\Users\user\Desktop\LwNdQo4zIk.exe
Imagebase:	0x400000
File size:	1034752 bytes
MD5 hash:	3CCD6B369EB1DDE57D181E7550BD7268
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: 00000000.00000002.309288628.0000000002330000.00000040.00001000.00020000.00000000.sdmp, Author: unknown Rule: Windows_Trojan_RedLineStealer_ed346e4c, Description: unknown, Source: 00000000.00000002.309087545.0000000002254000.00000040.00000800.00020000.00000000.sdmp, Author: unknown
Reputation:	low

Analysis Process: rundll32.exePID: 5472, Parent PID: 1792

General

Target ID:	1
Start time:	08:52:23
Start date:	05/01/2023
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	"C:\Windows\system32\rundll32.exe" "C:\Users\user\AppData\Local\Temp\Pyupydeoe.tmp",Uprsprhaot
Imagebase:	0xa0000
File size:	61952 bytes
MD5 hash:	D7CA562B0DB4F4DD0F03A89A1FDAD63D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Disassembly

⊘No disassembly

File type:	PE32 executable (GUI) Intel 80386, for MS Windows
Entropy (8bit):	7.853487844881012
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:	LwNdQo4zIk.exe
File size:	1034752
MD5:	3ccd6b369eb1dde57d181e7550bd7268
SHA1:	aee399e263c838570c00133feab275b81009e12a
SHA256:	f5717aef9a4323816387603920b652a94ac0d9cedef36391cedd9cdcbfef7f60
SHA512:	00bd3bb981e2a5bd4c30241025f352e9e528d76300e67fcdbe89ee9e12ecbba73b291aebd9b73f73a8aaa32e2a8b2d1b4d49796cdc11a1b891a313cf0a9dcc03
SSDEEP:	24576:RFOWvM7bZBFpXlDpRjJ5JAXVm359Ov9UIrczuX:RguWRNpRjJPgAp9ucz
TLSH:	B7251201329194A7C1CA6A3C4930E7F02D7FBCF29D7CE187EB643A1E9E706B14A55687
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......................;.Y.......Z.......L.......................K.......[.......^.....Rich............................PE..L....7.b...

Entrypoint:	0x40600e
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:	0x620337B3 [Wed Feb 9 03:40:35 2022 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:	7bca87c7309353055aed194207c93e99

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x16dec	0x3c	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x10d000	0xbcb0	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x1220	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	0x43a0	0x40	.text
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x1000	0x1d4	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x16850	0x16a00	False	0.5431198204419889	data	6.3410785244090935	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.data	0x18000	0xf4fb4	0xd9e00	False	0.9918356461560528	data	7.991407419226785	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.rsrc	0x10d000	0xbcb0	0xbe00	False	0.38569078947368424	data	4.2370546659086274	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Name	RVA	Size	Type	Language	Country
AFX_DIALOG_LAYOUT	0x1160a0	0x2	data
AFX_DIALOG_LAYOUT	0x116098	0x2	data
AFX_DIALOG_LAYOUT	0x1160a8	0x2	data
AFX_DIALOG_LAYOUT	0x1160b0	0x2	data
AFX_DIALOG_LAYOUT	0x1160b8	0x2	data
RT_CURSOR	0x1160c0	0x130	Device independent bitmap graphic, 32 x 64 x 1, image size 0
RT_CURSOR	0x116208	0x130	Device independent bitmap graphic, 32 x 64 x 1, image size 0
RT_CURSOR	0x116338	0xf0	Device independent bitmap graphic, 24 x 48 x 1, image size 0
RT_CURSOR	0x116428	0x10a8	Device independent bitmap graphic, 32 x 64 x 32, image size 0
RT_CURSOR	0x117500	0x8a8	Device independent bitmap graphic, 32 x 64 x 8, image size 0
RT_ICON	0x10d6e0	0x6c8	Device independent bitmap graphic, 24 x 48 x 8, image size 0	Serbian	Italy
RT_ICON	0x10dda8	0x568	Device independent bitmap graphic, 16 x 32 x 8, image size 0	Serbian	Italy
RT_ICON	0x10e310	0x10a8	Device independent bitmap graphic, 32 x 64 x 32, image size 0	Serbian	Italy
RT_ICON	0x10f3b8	0x468	Device independent bitmap graphic, 16 x 32 x 32, image size 0	Serbian	Italy
RT_ICON	0x10f860	0xea8	Device independent bitmap graphic, 48 x 96 x 8, image size 2304, 256 important colors	Serbian	Italy
RT_ICON	0x110708	0x8a8	Device independent bitmap graphic, 32 x 64 x 8, image size 1024, 256 important colors	Serbian	Italy
RT_ICON	0x110fb0	0x6c8	Device independent bitmap graphic, 24 x 48 x 8, image size 576, 256 important colors	Serbian	Italy
RT_ICON	0x111678	0x568	Device independent bitmap graphic, 16 x 32 x 8, image size 256, 256 important colors	Serbian	Italy
RT_ICON	0x111be0	0x25a8	Device independent bitmap graphic, 48 x 96 x 32, image size 9600	Serbian	Italy
RT_ICON	0x114188	0x10a8	Device independent bitmap graphic, 32 x 64 x 32, image size 4224	Serbian	Italy
RT_ICON	0x115230	0x988	Device independent bitmap graphic, 24 x 48 x 32, image size 2400	Serbian	Italy
RT_ICON	0x115bb8	0x468	Device independent bitmap graphic, 16 x 32 x 32, image size 1088	Serbian	Italy
RT_STRING	0x117f18	0xea	data	Serbian	Italy
RT_STRING	0x118008	0x348	data	Serbian	Italy
RT_STRING	0x118350	0x682	data	Serbian	Italy
RT_STRING	0x1189d8	0x2d8	data	Serbian	Italy
RT_GROUP_CURSOR	0x1161f0	0x14	data
RT_GROUP_CURSOR	0x117da8	0x14	data
RT_GROUP_CURSOR	0x1174d0	0x30	data
RT_GROUP_ICON	0x116020	0x76	data	Serbian	Italy
RT_GROUP_ICON	0x10f820	0x3e	data	Serbian	Italy
RT_VERSION	0x117dc0	0x154	Encore not stripped - version 79

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 abuse rundll32.exe to proxy execution of malicious code. Using rundll32.exe, vice executing directly (i.e. Shared Modules ), may avoid triggering security tools that may not monitor execution of the rundll32.exe process because of allowlists or false positives from normal operations. Rundll32.exe is commonly associated with executing DLL payloads.
Tactics:	Defense Evasion
Data Sources:	DLL monitoring, Loaded DLLs, Process command-line parameters, Process monitoring
Platforms:	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 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:	An adversary may gather the system time and/or time zone from a local or remote system. The system time is set and stored by the Windows Time Service within a domain to maintain time synchronization between systems and services in an enterprise network.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	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:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
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 a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may transfer tools or other files from an external system into a compromised environment. Files may be copied from an external adversary controlled system through the command and control channel to bring tools into the victim network or through alternate protocols with another tool such as FTP. Files can also be copied over on Mac and Linux with native tools like scp, rsync, and sftp.
Tactics:	Command and Control
Data Sources:	File monitoring, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process command-line parameters, 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 LwNdQo4zIk.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Memory Dumps

Sigma Signatures

Snort Signatures

Joe Sandbox Signatures

AV Detection

Cryptography

Compliance

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

HIPS / PFW / Operating System Protection Evasion

Language, Device and Operating System Detection

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

World Map of Contacted 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\Local\Temp\Pyupydeoe.tmp

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Rich Headers

Data Directories

Sections

Resources

Imports

Possible Origin

Network Behavior

Statistics

Behavior

System Behavior

Analysis Process: LwNdQo4zIk.exePID: 1792, Parent PID: 3528

General

Analysis Process: rundll32.exePID: 5472, Parent PID: 1792

General

Disassembly

Windows Analysis Report
LwNdQo4zIk.exe