Malware Analysis Report

2025-08-10 22:18

Sample ID 210615-eqwwhh94ex
Target d4a5e8f88ac4ff7f29e774bccd0eb047176b76490a9934c4da119b877936b434
SHA256 d4a5e8f88ac4ff7f29e774bccd0eb047176b76490a9934c4da119b877936b434
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

d4a5e8f88ac4ff7f29e774bccd0eb047176b76490a9934c4da119b877936b434

Threat Level: Known bad

The file d4a5e8f88ac4ff7f29e774bccd0eb047176b76490a9934c4da119b877936b434 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 11:27

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 11:27

Reported

2021-06-15 11:30

Platform

win10v20210410

Max time kernel

17s

Max time network

113s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4a5e8f88ac4ff7f29e774bccd0eb047176b76490a9934c4da119b877936b434.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 772 wrote to memory of 2100 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 772 wrote to memory of 2100 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 772 wrote to memory of 2100 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\d4a5e8f88ac4ff7f29e774bccd0eb047176b76490a9934c4da119b877936b434.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4a5e8f88ac4ff7f29e774bccd0eb047176b76490a9934c4da119b877936b434.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 680

Network

N/A

Files

memory/2100-114-0x0000000000000000-mapping.dmp

memory/2100-115-0x0000000073B80000-0x0000000073BB0000-memory.dmp

memory/2100-117-0x00000000028F0000-0x00000000028F6000-memory.dmp