Malware Analysis Report

2025-08-10 22:18

Sample ID 210615-1q31df12ne
Target 3e05ac9148a1805367881ef1514bfc58f9cd39a2fa7ab7c782bff22c4bdbbaac
SHA256 3e05ac9148a1805367881ef1514bfc58f9cd39a2fa7ab7c782bff22c4bdbbaac
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

3e05ac9148a1805367881ef1514bfc58f9cd39a2fa7ab7c782bff22c4bdbbaac

Threat Level: Known bad

The file 3e05ac9148a1805367881ef1514bfc58f9cd39a2fa7ab7c782bff22c4bdbbaac was found to be: Known bad.

Malicious Activity Summary

dridex 40112 botnet loader

Dridex

Dridex Loader

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-06-15 11:32

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 11:32

Reported

2021-06-15 11:35

Platform

win10v20210408

Max time kernel

26s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e05ac9148a1805367881ef1514bfc58f9cd39a2fa7ab7c782bff22c4bdbbaac.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 708 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 708 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 708 wrote to memory of 1628 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\3e05ac9148a1805367881ef1514bfc58f9cd39a2fa7ab7c782bff22c4bdbbaac.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e05ac9148a1805367881ef1514bfc58f9cd39a2fa7ab7c782bff22c4bdbbaac.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1628 -s 708

Network

N/A

Files

memory/1628-114-0x0000000000000000-mapping.dmp

memory/1628-115-0x0000000073C70000-0x0000000073CA0000-memory.dmp

memory/1628-117-0x0000000002BE0000-0x0000000002BE6000-memory.dmp