Malware Analysis Report

2025-08-05 16:34

Sample ID 210615-qmn3g48m7a
Target b1976f40c9354ea8a9a61070c57cd8c0fcaa8db6c9931d030bacad73a032cd43
SHA256 b1976f40c9354ea8a9a61070c57cd8c0fcaa8db6c9931d030bacad73a032cd43
Tags
dridex 40112 botnet loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b1976f40c9354ea8a9a61070c57cd8c0fcaa8db6c9931d030bacad73a032cd43

Threat Level: Known bad

The file b1976f40c9354ea8a9a61070c57cd8c0fcaa8db6c9931d030bacad73a032cd43 was found to be: Known bad.

Malicious Activity Summary

dridex 40112 botnet loader

Dridex

Dridex Loader

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-06-15 16:17

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 16:17

Reported

2021-06-15 16:20

Platform

win10v20210408

Max time kernel

27s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1976f40c9354ea8a9a61070c57cd8c0fcaa8db6c9931d030bacad73a032cd43.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
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: SeRestorePrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 488 wrote to memory of 1496 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 488 wrote to memory of 1496 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 488 wrote to memory of 1496 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\b1976f40c9354ea8a9a61070c57cd8c0fcaa8db6c9931d030bacad73a032cd43.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1976f40c9354ea8a9a61070c57cd8c0fcaa8db6c9931d030bacad73a032cd43.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 680

Network

N/A

Files

memory/1496-114-0x0000000000000000-mapping.dmp

memory/1496-115-0x0000000073F10000-0x0000000073F40000-memory.dmp

memory/1496-117-0x00000000009A0000-0x00000000009A6000-memory.dmp