Malware Analysis Report

2025-08-10 22:16

Sample ID 210615-zvbc8yzpse
Target 42095a65f6b3969f545db4e968315e7c518b30f705aa3711a73e7f00d243f149
SHA256 42095a65f6b3969f545db4e968315e7c518b30f705aa3711a73e7f00d243f149
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

42095a65f6b3969f545db4e968315e7c518b30f705aa3711a73e7f00d243f149

Threat Level: Known bad

The file 42095a65f6b3969f545db4e968315e7c518b30f705aa3711a73e7f00d243f149 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 12:04

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 12:04

Reported

2021-06-15 12:07

Platform

win10v20210410

Max time kernel

20s

Max time network

116s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\42095a65f6b3969f545db4e968315e7c518b30f705aa3711a73e7f00d243f149.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 2760 wrote to memory of 3260 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2760 wrote to memory of 3260 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2760 wrote to memory of 3260 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\42095a65f6b3969f545db4e968315e7c518b30f705aa3711a73e7f00d243f149.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\42095a65f6b3969f545db4e968315e7c518b30f705aa3711a73e7f00d243f149.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3260 -s 680

Network

N/A

Files

memory/3260-114-0x0000000000000000-mapping.dmp

memory/3260-115-0x0000000073860000-0x0000000073890000-memory.dmp

memory/3260-117-0x0000000002D90000-0x0000000002D96000-memory.dmp