Malware Analysis Report

2025-08-05 16:34

Sample ID 210615-axt1f8ptz2
Target 4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5
SHA256 4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5
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

4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5

Threat Level: Known bad

The file 4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5 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 15:42

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 15:42

Reported

2021-06-15 15:45

Platform

win10v20210408

Max time kernel

27s

Max time network

135s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5.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 900 wrote to memory of 1124 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 900 wrote to memory of 1124 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 900 wrote to memory of 1124 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\4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4bf7c2622db43c697cb7b9e84d250969a1caeb3561fe7b27ee798e3bd66716c5.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1124 -s 680

Network

N/A

Files

memory/1124-114-0x0000000000000000-mapping.dmp

memory/1124-115-0x0000000074310000-0x0000000074340000-memory.dmp

memory/1124-117-0x0000000003430000-0x0000000003436000-memory.dmp