Malware Analysis Report

2025-08-10 12:14

Sample ID 240610-2lrggstgqj
Target 6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603
SHA256 6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603
Tags
upx persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603

Threat Level: Known bad

The file 6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603 was found to be: Known bad.

Malicious Activity Summary

upx persistence

UPX dump on OEP (original entry point)

UPX dump on OEP (original entry point)

Modifies AppInit DLL entries

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Program crash

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 22:40

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A

ACProtect 1.3x - 1.4x DLL software

Description Indicator Process Target
N/A N/A N/A N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 22:40

Reported

2024-06-10 22:43

Platform

win7-20231129-en

Max time kernel

140s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603.dll,#1

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 332

Network

N/A

Files

memory/2232-1-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2232-0-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2232-2-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2232-3-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 22:40

Reported

2024-06-10 22:43

Platform

win10v2004-20240508-en

Max time kernel

62s

Max time network

51s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603.dll,#1

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Modifies AppInit DLL entries

persistence

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 392 wrote to memory of 372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 392 wrote to memory of 372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 392 wrote to memory of 372 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\6099efc294e4a3afca69f57409d4108609ba124fc2a9c727a4380037b1f87603.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 372 -ip 372

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 372 -s 712

Network

Files

memory/372-0-0x0000000010000000-0x0000000010030000-memory.dmp

memory/372-2-0x0000000010000000-0x0000000010030000-memory.dmp