Malware Analysis Report

2025-08-05 16:34

Sample ID 210615-39vz2sxkk6
Target 897dc2340ba0dcf3afbe92e8951f171f1574ad65d1580435fd84371e151929d0
SHA256 897dc2340ba0dcf3afbe92e8951f171f1574ad65d1580435fd84371e151929d0
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

897dc2340ba0dcf3afbe92e8951f171f1574ad65d1580435fd84371e151929d0

Threat Level: Known bad

The file 897dc2340ba0dcf3afbe92e8951f171f1574ad65d1580435fd84371e151929d0 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 15:22

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 15:22

Reported

2021-06-15 15:25

Platform

win10v20210408

Max time kernel

26s

Max time network

114s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\897dc2340ba0dcf3afbe92e8951f171f1574ad65d1580435fd84371e151929d0.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 1040 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1040 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1040 wrote to memory of 2004 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\897dc2340ba0dcf3afbe92e8951f171f1574ad65d1580435fd84371e151929d0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\897dc2340ba0dcf3afbe92e8951f171f1574ad65d1580435fd84371e151929d0.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 680

Network

N/A

Files

memory/2004-114-0x0000000000000000-mapping.dmp

memory/2004-115-0x0000000073F50000-0x0000000073F80000-memory.dmp

memory/2004-117-0x0000000003210000-0x0000000003216000-memory.dmp