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Analysis Report yiu0bguw4d

Overview

General Information

Sample Name:	yiu0bguw4d (renamed file extension from none to exe)
Analysis ID:	395374
MD5:	d5b8e2ce449917bf395454082de6cba9
SHA1:	fe872c03ceef39422218003bc5a34be4faf47e55
SHA256:	981d483b809a8d146115d1a1feb7bb8d588e014a0f009deb528662d39f5657e4
Tags:	GuLoader
Infos:
Most interesting Screenshot:

Detection

GuLoader

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

Signatures

Found malware configuration

Multi AV Scanner detection for submitted file

Potential malicious icon found

Yara detected GuLoader

C2 URLs / IPs found in malware configuration

Contains functionality to detect hardware virtualization (CPUID execution measurement)

Contains functionality to hide a thread from the debugger

Detected RDTSC dummy instruction sequence (likely for instruction hammering)

Hides threads from debuggers

Tries to detect Any.run

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

Tries to detect virtualization through RDTSC time measurements

Abnormal high CPU Usage

Checks if the current process is being debugged

Contains functionality for execution timing, often used to detect debuggers

Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Contains functionality to call native functions

Contains functionality to query CPU information (cpuid)

Contains functionality to read the PEB

Creates a DirectInput object (often for capturing keystrokes)

Found potential string decryption / allocating functions

May sleep (evasive loops) to hinder dynamic analysis

PE file contains strange resources

Program does not show much activity (idle)

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

Sample file is different than original file name gathered from version info

Tries to load missing DLLs

Uses 32bit PE files

Uses code obfuscation techniques (call, push, ret)

Classification

Startup

System is w10x64

yiu0bguw4d.exe (PID: 204 cmdline: 'C:\Users\user\Desktop\yiu0bguw4d.exe' MD5: D5B8E2CE449917BF395454082DE6CBA9)

RegAsm.exe (PID: 6304 cmdline: 'C:\Users\user\Desktop\yiu0bguw4d.exe' MD5: 6FD7592411112729BF6B1F2F6C34899F)

conhost.exe (PID: 6344 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)

cleanup

Malware Configuration

Threatname: GuLoader

{"Payload URL": "https://drive.google.com/uc?export=download&id=1dMb_B0qeMj8gz7LWqIfB7I-0h8qhomgl", "Injection Process": ["RegAsm.exe", "RegSvcs.exe", "MSBuild.exe"]}

Yara Overview

Memory Dumps

Source	Rule	Description	Author	Strings
0000000B.00000002.494899061.0000000000A00000.00000040.00000001.sdmp	JoeSecurity_GuLoader	Yara detected GuLoader	Joe Security
Process Memory Space: RegAsm.exe PID: 6304	JoeSecurity_GuLoader	Yara detected GuLoader	Joe Security

Sigma Overview

No Sigma rule has matched

Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Found malware configuration

Show sources

Source: 0000000B.00000002.494899061.0000000000A00000.00000040.00000001.sdmp

Malware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=download&id=1dMb_B0qeMj8gz7LWqIfB7I-0h8qhomgl", "Injection Process": ["RegAsm.exe", "RegSvcs.exe", "MSBuild.exe"]}

Multi AV Scanner detection for submitted file

Show sources

Source: yiu0bguw4d.exe	Virustotal: Detection: 62%	Perma Link
Source: yiu0bguw4d.exe	Metadefender: Detection: 23%	Perma Link
Source: yiu0bguw4d.exe	ReversingLabs: Detection: 79%

Source: yiu0bguw4d.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Networking:

C2 URLs / IPs found in malware configuration

Show sources

Source: Malware configuration extractor

URLs: https://drive.google.com/uc?export=download&id=1dMb_B0qeMj8gz7LWqIfB7I-0h8qhomgl

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Code function: 11_2_00A08293 NtSetInformationThread,InternetReadFile,

Source: RegAsm.exe, 0000000B.00000002.494807811.00000000007BA000.00000004.00000001.sdmp	String found in binary or memory: https://drive.google.com/uc?export=download&id=1dMb_B0qeMj8gz7L
Source: RegAsm.exe, 0000000B.00000002.494899061.0000000000A00000.00000040.00000001.sdmp	String found in binary or memory: https://drive.google.com/uc?export=download&id=1dMb_B0qeMj8gz7LWqIfB7I-0h8qhomgl

Source: yiu0bguw4d.exe, 00000000.00000002.477090048.000000000074A000.00000004.00000020.sdmp

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

System Summary:

Potential malicious icon found

Show sources

Source: initial sample

Icon embedded in PE file: bad icon match: 20047c7c70f0e004

Source: C:\Users\user\Desktop\yiu0bguw4d.exe

Process Stats: CPU usage > 98%

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A08293 NtSetInformationThread,InternetReadFile,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A0446B NtSetInformationThread,InternetOpenA,InternetOpenUrlA,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A007EC EnumWindows,NtSetInformationThread,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A00AD7 NtSetInformationThread,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A07CCA NtProtectVirtualMemory,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A081F1 NtProtectVirtualMemory,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A008C1 NtSetInformationThread,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A0087A NtSetInformationThread,

Source: C:\Users\user\Desktop\yiu0bguw4d.exe

Code function: String function: 0040172E appears 35 times

Source: yiu0bguw4d.exe

Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Source: yiu0bguw4d.exe, 00000000.00000002.476080679.000000000042A000.00000002.00020000.sdmp	Binary or memory string: OriginalFilenameUruguayanernes5.exe vs yiu0bguw4d.exe
Source: yiu0bguw4d.exe, 00000000.00000002.477199626.00000000021D0000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameUruguayanernes5.exeFE2X vs yiu0bguw4d.exe
Source: yiu0bguw4d.exe, 00000000.00000002.477199626.00000000021D0000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameUruguayanernes5.exeFE2X. vs yiu0bguw4d.exe
Source: yiu0bguw4d.exe, 00000000.00000002.477199626.00000000021D0000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameUruguayanernes5.exeFE2Xm vs yiu0bguw4d.exe
Source: yiu0bguw4d.exe, 00000000.00000002.477199626.00000000021D0000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameUruguayanernes5.exeFE2X" vs yiu0bguw4d.exe
Source: yiu0bguw4d.exe, 00000000.00000002.477037263.00000000005F0000.00000002.00000001.sdmp	Binary or memory string: OriginalFilenameuser32j% vs yiu0bguw4d.exe
Source: yiu0bguw4d.exe	Binary or memory string: OriginalFilenameUruguayanernes5.exe vs yiu0bguw4d.exe

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Section loaded: sfc.dll

Source: yiu0bguw4d.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Source: classification engine

Classification label: mal100.rans.troj.evad.winEXE@3/0@0/0

Source: C:\Windows\System32\conhost.exe

Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6344:120:WilError_01

Source: yiu0bguw4d.exe

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

Source: C:\Users\user\Desktop\yiu0bguw4d.exe

Section loaded: C:\Windows\SysWOW64\msvbvm60.dll

Source: C:\Users\user\Desktop\yiu0bguw4d.exe

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

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	File read: C:\Windows\System32\drivers\etc\hosts			Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	File read: C:\Windows\System32\drivers\etc\hosts			Jump to behavior

Source: yiu0bguw4d.exe	Virustotal: Detection: 62%
Source: yiu0bguw4d.exe	Metadefender: Detection: 23%
Source: yiu0bguw4d.exe	ReversingLabs: Detection: 79%

Source: unknown	Process created: C:\Users\user\Desktop\yiu0bguw4d.exe 'C:\Users\user\Desktop\yiu0bguw4d.exe'
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe 'C:\Users\user\Desktop\yiu0bguw4d.exe'
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1

Source: Window Recorder

Window detected: More than 3 window changes detected

Data Obfuscation:

Yara detected GuLoader

Show sources

Source: Yara match	File source: 0000000B.00000002.494899061.0000000000A00000.00000040.00000001.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: RegAsm.exe PID: 6304, type: MEMORY

Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Code function: 0_2_0040AC62 push ebp; retf
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Code function: 0_2_0040841A push esp; retf
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Code function: 0_2_0040BDD1 push esp; retf
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Code function: 0_2_00406DEE push es; ret
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Code function: 0_2_0040C20F pushad ; retf
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Code function: 0_2_0040BFD7 pushad ; ret
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Code function: 0_2_0040A3EB push edx; iretd
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A062F5 push ss; ret
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A05433 push ebx; retf

Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\conhost.exe	Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion:

Contains functionality to detect hardware virtualization (CPUID execution measurement)

Show sources

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A020CD
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A02141
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A01EB9
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A01E78
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A01FFD
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A01F55

Detected RDTSC dummy instruction sequence (likely for instruction hammering)

Show sources

Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000500B36 second address: 0000000000500B36 instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000504A9D second address: 0000000000504A9D instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000500D33 second address: 0000000000500D33 instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 00000000005086E7 second address: 00000000005086E7 instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 00000000005087CE second address: 00000000005087CE instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000502FC8 second address: 0000000000502FC8 instructions:

Tries to detect Any.run

Show sources

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	File opened: C:\Program Files\Qemu-ga\qemu-ga.exe
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	File opened: C:\Program Files\qga\qga.exe

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

Show sources

Source: yiu0bguw4d.exe, 00000000.00000002.477100378.0000000000761000.00000004.00000020.sdmp	Binary or memory string: \??\C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXEE
Source: yiu0bguw4d.exe, 00000000.00000002.477100378.0000000000761000.00000004.00000020.sdmp	Binary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXEEN
Source: RegAsm.exe, 0000000B.00000002.494899061.0000000000A00000.00000040.00000001.sdmp	Binary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXE

Tries to detect virtualization through RDTSC time measurements

Show sources

Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000507871 second address: 00000000005078A6 instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a popad 0x0000000b test eax, ecx 0x0000000d mov eax, dword ptr [esp+18h] 0x00000011 test bl, dl 0x00000013 mov byte ptr [eax], FFFFFF90h 0x00000016 test edx, eax 0x00000018 cmp ax, bx 0x0000001b mov eax, dword ptr [esp+1Ch] 0x0000001f mov byte ptr [eax], 0000006Ah 0x00000022 mov byte ptr [eax+01h], 00000000h 0x00000026 mov byte ptr [eax+02h], FFFFFFB8h 0x0000002a mov edx, dword ptr [ebp+0000013Ch] 0x00000030 nop 0x00000031 pushad 0x00000032 lfence 0x00000035 rdtsc
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000500B36 second address: 0000000000500B36 instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000504A9D second address: 0000000000504A9D instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000500D33 second address: 0000000000500D33 instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 00000000005086E7 second address: 00000000005086E7 instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 00000000005087CE second address: 00000000005087CE instructions:
Source: C:\Users\user\Desktop\yiu0bguw4d.exe	RDTSC instruction interceptor: First address: 0000000000502FC8 second address: 0000000000502FC8 instructions:
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	RDTSC instruction interceptor: First address: 0000000000A07871 second address: 0000000000A078A6 instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a popad 0x0000000b test eax, ecx 0x0000000d mov eax, dword ptr [esp+18h] 0x00000011 test bl, dl 0x00000013 mov byte ptr [eax], FFFFFF90h 0x00000016 test edx, eax 0x00000018 cmp ax, bx 0x0000001b mov eax, dword ptr [esp+1Ch] 0x0000001f mov byte ptr [eax], 0000006Ah 0x00000022 mov byte ptr [eax+01h], 00000000h 0x00000026 mov byte ptr [eax+02h], FFFFFFB8h 0x0000002a mov edx, dword ptr [ebp+0000013Ch] 0x00000030 nop 0x00000031 pushad 0x00000032 lfence 0x00000035 rdtsc

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Code function: 11_2_00A01457 rdtsc

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe TID: 6308

Thread sleep time: -1810000s >= -30000s

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Last function: Thread delayed
Source: C:\Windows\System32\conhost.exe	Last function: Thread delayed

Source: yiu0bguw4d.exe, 00000000.00000002.477100378.0000000000761000.00000004.00000020.sdmp	Binary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exeen
Source: yiu0bguw4d.exe, 00000000.00000002.477100378.0000000000761000.00000004.00000020.sdmp	Binary or memory string: \??\C:\Program Files\Qemu-ga\qemu-ga.exee
Source: RegAsm.exe, 0000000B.00000002.494899061.0000000000A00000.00000040.00000001.sdmp	Binary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe

Anti Debugging:

Contains functionality to hide a thread from the debugger

Show sources

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Code function: 11_2_00A08293 NtSetInformationThread 000000FE,00000011,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000

Hides threads from debuggers

Show sources

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Thread information set: HideFromDebugger

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Process queried: DebugPort

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Code function: 11_2_00A01457 rdtsc

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Code function: 11_2_00A04CF1 LdrInitializeThunk,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A027EC mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A0672D mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A0773F mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A02889 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A03977 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A06D85 mov eax, dword ptr fs:[00000030h]
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe	Code function: 11_2_00A01E78 mov eax, dword ptr fs:[00000030h]

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: RegAsm.exe, 0000000B.00000002.495859788.0000000001220000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd
Source: RegAsm.exe, 0000000B.00000002.495859788.0000000001220000.00000002.00000001.sdmp	Binary or memory string: Progman
Source: RegAsm.exe, 0000000B.00000002.495859788.0000000001220000.00000002.00000001.sdmp	Binary or memory string: SProgram Managerl
Source: RegAsm.exe, 0000000B.00000002.495859788.0000000001220000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd,
Source: RegAsm.exe, 0000000B.00000002.495859788.0000000001220000.00000002.00000001.sdmp	Binary or memory string: Progmanlock

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Code function: 11_2_00A0087A cpuid

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	DLL Side-Loading1	Process Injection2	Virtualization/Sandbox Evasion22	Input Capture1	Security Software Discovery721	Remote Services	Input Capture1	Exfiltration Over Other Network Medium	Application Layer Protocol1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	DLL Side-Loading1	Process Injection2	LSASS Memory	Virtualization/Sandbox Evasion22	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Ingress Tool Transfer1	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Deobfuscate/Decode Files or Information1	Security Account Manager	Process Discovery1	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)	DLL Side-Loading1	NTDS	System Information Discovery311	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	Obfuscated Files or Information2	LSA Secrets	Remote System Discovery1	SSH	Keylogging	Data Transfer Size Limits	Fallback Channels	Manipulate Device Communication		Manipulate App Store Rankings or Ratings

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
yiu0bguw4d.exe	62%	Virustotal		Browse
yiu0bguw4d.exe	26%	Metadefender		Browse
yiu0bguw4d.exe	79%	ReversingLabs	Win32.Trojan.Vebzenpak

Dropped Files

No Antivirus matches

Unpacked PE Files

No Antivirus matches

Domains

No Antivirus matches

URLs

No Antivirus matches

Domains and IPs

Contacted Domains

No contacted domains info

Contacted IPs

No contacted IP infos

General Information

Joe Sandbox Version:	31.0.0 Emerald
Analysis ID:	395374
Start date:	22.04.2021
Start time:	13:15:22
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 5m 42s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	yiu0bguw4d (renamed file extension from none to exe)
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	22
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:	mal100.rans.troj.evad.winEXE@3/0@0/0
EGA Information:	Failed
HDC Information:	Successful, ratio: 7% (good quality ratio 5.3%) Quality average: 42.1% Quality standard deviation: 25.8%
HCA Information:	Successful, ratio: 70% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Adjust boot time Enable AMSI
Warnings:	Show All Behavior information exceeds normal sizes, reducing to normal. Report will have missing behavior information. Exclude process from analysis (whitelisted): taskhostw.exe, MpCmdRun.exe, BackgroundTransferHost.exe, backgroundTaskHost.exe, SgrmBroker.exe, conhost.exe, svchost.exe Excluded IPs from analysis (whitelisted): 13.88.21.125, 131.253.33.200, 13.107.22.200, 40.88.32.150, 20.82.210.154, 92.122.145.220, 13.64.90.137, 184.30.24.56, 8.241.126.249, 8.253.145.121, 8.241.78.254, 8.241.90.126, 8.238.27.126, 20.50.102.62, 142.250.185.110, 92.122.213.247, 92.122.213.194, 20.54.26.129 Excluded domains from analysis (whitelisted): arc.msn.com.nsatc.net, store-images.s-microsoft.com-c.edgekey.net, fs-wildcard.microsoft.com.edgekey.net, fs-wildcard.microsoft.com.edgekey.net.globalredir.akadns.net, a1449.dscg2.akamai.net, arc.msn.com, skypedataprdcoleus15.cloudapp.net, e12564.dspb.akamaiedge.net, www-bing-com.dual-a-0001.a-msedge.net, audownload.windowsupdate.nsatc.net, arc.trafficmanager.net, drive.google.com, watson.telemetry.microsoft.com, auto.au.download.windowsupdate.com.c.footprint.net, img-prod-cms-rt-microsoft-com.akamaized.net, prod.fs.microsoft.com.akadns.net, au-bg-shim.trafficmanager.net, www.bing.com, skypedataprdcolwus17.cloudapp.net, fs.microsoft.com, ris-prod.trafficmanager.net, e1723.g.akamaiedge.net, ctldl.windowsupdate.com, dual-a-0001.dc-msedge.net, ris.api.iris.microsoft.com, a-0001.a-afdentry.net.trafficmanager.net, store-images.s-microsoft.com, blobcollector.events.data.trafficmanager.net, skypedataprdcolwus15.cloudapp.net Report size getting too big, too many NtOpenKeyEx calls found. Report size getting too big, too many NtProtectVirtualMemory calls found. Report size getting too big, too many NtQueryValueKey calls found.

Simulations

Behavior and APIs

Time	Type	Description
13:17:14	API Interceptor	181x Sleep call for process: RegAsm.exe modified

Joe Sandbox View / Context

IPs

No context

Domains

No context

ASN

No context

JA3 Fingerprints

No context

Dropped Files

No context

Created / dropped Files

No created / dropped files found

Static File Info

General
File type:	PE32 executable (GUI) Intel 80386, for MS Windows
Entropy (8bit):	5.766092447013738
TrID:	Win32 Executable (generic) a (10002005/4) 99.15% Win32 Executable Microsoft Visual Basic 6 (82127/2) 0.81% 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:	yiu0bguw4d.exe
File size:	159744
MD5:	d5b8e2ce449917bf395454082de6cba9
SHA1:	fe872c03ceef39422218003bc5a34be4faf47e55
SHA256:	981d483b809a8d146115d1a1feb7bb8d588e014a0f009deb528662d39f5657e4
SHA512:	54dc37f2345a4b70786920c80adf8c1fc72c9ab97edf95b239453c081ab221134fbbc8ae8d8fd3ce635d4b3aec8f42fbc44005930e917e10e1a72cbd5e442e48
SSDEEP:	3072:q9gtPOO/XUh8LKcLMD8bvl2Zo/NK9HRQBxEvOK69GqcOUVA9DrBH8YdKHar3dSGE:q9yjkz3DYYZo/Q9xQBxEvOK69GqfUVAr
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........6...W...W...W...K...W...u...W...q...W..Rich.W..........................PE..L...../L.................@...`...............P....@

File Icon


Icon Hash:	20047c7c70f0e004

Static PE Info

General
Entrypoint:	0x4017e8
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
DLL Characteristics:
Time Stamp:	0x4C2F1AF0 [Sat Jul 3 11:11:44 2010 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	66c809d2e31d4e6411dd9b96c6b12187

Entrypoint Preview

Instruction
push 00401A08h
call 00007FC0949B6855h
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
xor byte ptr [eax], al
add byte ptr [eax], al
inc eax
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [edx], dh
pushfd
movsd
popad
pop es
hlt
loopne 00007FC0949B68AFh
mov byte ptr [edx-7CF2A144h], cl
add al, byte ptr [00000000h]
add byte ptr [eax], al
add dword ptr [eax], eax
add byte ptr [eax], al
add byte ptr [eax], al
fcomp st(0), st(7)
sbb eax, dword ptr [ebx]
push eax
jc 00007FC0949B68D1h
push 00000065h
arpl word ptr [ecx+esi+00h], si
or byte ptr [ecx+00h], al
and byte ptr [eax], cl
inc ecx
add byte ptr [eax], al
add byte ptr [eax], al
add bh, bh
int3
xor dword ptr [eax], eax
add eax, E18115F3h
add al, 01h
mov dword ptr [ecx-4Ah], eax
push es
xor dword ptr [ebp-1Ch], ebp
inc ecx
jc 00007FC0949B6819h
mov ecx, dword ptr [ebx+5Fh]
dec esi
clc
retf
dec ebp
adc dword ptr [edi-48h], 76h
adc byte ptr [4F3A912Eh], bl
lodsd
xor ebx, dword ptr [ecx-48EE309Ah]
or al, 00h
stosb
add byte ptr [eax-2Dh], ah
xchg eax, ebx
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
pop ss
add dword ptr [eax], eax
add byte ptr [eax+eax+00h], dl
add byte ptr [eax], al
or al, 00h
jne 00007FC0949B68C6h
jnc 00007FC0949B68C3h
outsb
jc 00007FC0949B68CCh
outsb
jc 00007FC0949B6864h
or eax, 54000D01h
popad

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x23ab4	0x28	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x2a000	0x9b4	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x238	0x20
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

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x23130	0x24000	False	0.419569227431	data	6.02803482745	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.data	0x25000	0x460c	0x1000	False	0.00634765625	data	0.0	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
.rsrc	0x2a000	0x9b4	0x1000	False	0.17724609375	data	2.10021451926	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type
RT_ICON	0x2a884	0x130	data
RT_ICON	0x2a59c	0x2e8	data
RT_ICON	0x2a474	0x128	GLS_BINARY_LSB_FIRST
RT_GROUP_ICON	0x2a444	0x30	data
RT_VERSION	0x2a150	0x2f4	data

Imports

DLL

Import

MSVBVM60.DLL

_CIcos, _adj_fptan, __vbaVarMove, __vbaFreeVar, __vbaAryMove, __vbaStrVarMove, __vbaFreeVarList, __vbaEnd, _adj_fdiv_m64, __vbaFreeObjList, _adj_fprem1, __vbaSetSystemError, __vbaHresultCheckObj, _adj_fdiv_m32, __vbaAryDestruct, __vbaVarForInit, __vbaObjSet, __vbaOnError, _adj_fdiv_m16i, __vbaObjSetAddref, _adj_fdivr_m16i, __vbaFpR8, __vbaVarTstLt, _CIsin, __vbaErase, __vbaChkstk, EVENT_SINK_AddRef, __vbaStrCmp, __vbaVarTstEq, __vbaObjVar, __vbaI2I4, DllFunctionCall, _adj_fpatan, __vbaLateIdCallLd, __vbaRedim, EVENT_SINK_Release, _CIsqrt, EVENT_SINK_QueryInterface, __vbaExceptHandler, _adj_fprem, _adj_fdivr_m64, __vbaFPException, _CIlog, __vbaNew2, __vbaVar2Vec, __vbaR8Str, _adj_fdiv_m32i, _adj_fdivr_m32i, __vbaStrCopy, __vbaI4Str, __vbaFreeStrList, __vbaDerefAry1, _adj_fdivr_m32, _adj_fdiv_r, __vbaVarTstNe, __vbaI4Var, __vbaVarDup, __vbaStrToAnsi, __vbaFpI4, __vbaLateMemCallLd, _CIatan, __vbaStrMove, __vbaCastObj, _allmul, __vbaLateIdSt, _CItan, __vbaFPInt, __vbaVarForNext, _CIexp, __vbaFreeObj, __vbaFreeStr

Version Infos

Description	Data
Translation	0x0000 0x04b0
LegalCopyright	Vought
InternalName	Uruguayanernes5
FileVersion	1.00
CompanyName	Vought
LegalTrademarks	Vought
Comments	Vought
ProductName	Vought
ProductVersion	1.00
FileDescription	Vought
OriginalFilename	Uruguayanernes5.exe

Network Behavior

Network Port Distribution

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 22, 2021 13:16:04.022247076 CEST	65307	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:04.071670055 CEST	53	65307	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:05.343327999 CEST	64344	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:05.369664907 CEST	62060	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:05.402415037 CEST	53	64344	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:05.406553984 CEST	61805	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:05.419886112 CEST	53	62060	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:05.457952023 CEST	53	61805	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:06.622735977 CEST	54795	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:06.671664953 CEST	53	54795	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:08.462213993 CEST	49557	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:08.521538019 CEST	53	49557	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:09.191998959 CEST	61733	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:09.243575096 CEST	53	61733	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:11.151460886 CEST	65447	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:11.203442097 CEST	53	65447	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:12.230552912 CEST	52441	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:12.285553932 CEST	53	52441	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:15.510654926 CEST	62176	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:15.562283039 CEST	53	62176	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:16.340872049 CEST	59596	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:16.389904022 CEST	53	59596	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:17.944291115 CEST	65296	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:17.995753050 CEST	53	65296	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:19.297769070 CEST	63183	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:19.346590996 CEST	53	63183	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:20.653418064 CEST	60151	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:20.702169895 CEST	53	60151	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:21.551079988 CEST	56969	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:21.611035109 CEST	53	56969	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:32.704593897 CEST	55161	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:32.763308048 CEST	53	55161	8.8.8.8	192.168.2.5
Apr 22, 2021 13:16:59.578900099 CEST	54757	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:16:59.639167070 CEST	53	54757	8.8.8.8	192.168.2.5
Apr 22, 2021 13:17:02.901556015 CEST	49992	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:17:02.950134039 CEST	53	49992	8.8.8.8	192.168.2.5
Apr 22, 2021 13:17:14.093085051 CEST	60075	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:17:14.162861109 CEST	53	60075	8.8.8.8	192.168.2.5
Apr 22, 2021 13:17:24.351308107 CEST	55016	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:17:24.409837008 CEST	53	55016	8.8.8.8	192.168.2.5
Apr 22, 2021 13:17:56.500247955 CEST	64345	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:17:56.548854113 CEST	53	64345	8.8.8.8	192.168.2.5
Apr 22, 2021 13:18:17.169271946 CEST	57128	53	192.168.2.5	8.8.8.8
Apr 22, 2021 13:18:17.236749887 CEST	53	57128	8.8.8.8	192.168.2.5

Code Manipulations

Statistics

Behavior

Click to jump to process

System Behavior

Analysis Process: yiu0bguw4d.exe PID: 204 Parent PID: 5564

General

Start time:	13:16:11
Start date:	22/04/2021
Path:	C:\Users\user\Desktop\yiu0bguw4d.exe
Wow64 process (32bit):	true
Commandline:	'C:\Users\user\Desktop\yiu0bguw4d.exe'
Imagebase:	0x400000
File size:	159744 bytes
MD5 hash:	D5B8E2CE449917BF395454082DE6CBA9
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	Visual Basic
Reputation:	low

Analysis Process: RegAsm.exe PID: 6304 Parent PID: 204

General

Start time:	13:17:00
Start date:	22/04/2021
Path:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
Wow64 process (32bit):	true
Commandline:	'C:\Users\user\Desktop\yiu0bguw4d.exe'
Imagebase:	0x610000
File size:	64616 bytes
MD5 hash:	6FD7592411112729BF6B1F2F6C34899F
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_GuLoader, Description: Yara detected GuLoader, Source: 0000000B.00000002.494899061.0000000000A00000.00000040.00000001.sdmp, Author: Joe Security
Reputation:	high

Analysis Process: conhost.exe PID: 6344 Parent PID: 6304

General

Start time:	13:17:02
Start date:	22/04/2021
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff7ecfc0000
File size:	625664 bytes
MD5 hash:	EA777DEEA782E8B4D7C7C33BBF8A4496
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Disassembly

Code Analysis

Reset < >

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 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 use Obfuscated Files or Information to hide artifacts of an intrusion from analysis. They may require separate mechanisms to decode or deobfuscate that information depending on how they intend to use it. Methods for doing that include built-in functionality of malware or by using utilities present on the system.
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 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 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

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 ...

Warning!

Analysis Report yiu0bguw4d

Overview

General Information

Detection

Signatures

Classification

Startup

Malware Configuration

Threatname: GuLoader

Yara Overview

Memory Dumps

Sigma Overview

Signature Overview

AV Detection:

Compliance:

Networking:

Key, Mouse, Clipboard, Microphone and Screen Capturing:

System Summary:

Data Obfuscation:

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:

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 IPs

General Information

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Version Infos

Network Behavior

Network Port Distribution

UDP Packets

Code Manipulations

Statistics

Behavior

System Behavior

Analysis Process: yiu0bguw4d.exe PID: 204 Parent PID: 5564

General

Analysis Process: RegAsm.exe PID: 6304 Parent PID: 204

General

Analysis Process: conhost.exe PID: 6344 Parent PID: 6304

General

Disassembly

Code Analysis