Malware Analysis Report

2025-01-18 16:30

Sample ID 210622-bv47y86mes
Target 4a80c55d86873a82a4898b75b1e364632d6e4c973f0772ca75276987bdb7e333
SHA256 4a80c55d86873a82a4898b75b1e364632d6e4c973f0772ca75276987bdb7e333
Tags
dridex 40112 botnet evasion loader trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4a80c55d86873a82a4898b75b1e364632d6e4c973f0772ca75276987bdb7e333

Threat Level: Known bad

The file 4a80c55d86873a82a4898b75b1e364632d6e4c973f0772ca75276987bdb7e333 was found to be: Known bad.

Malicious Activity Summary

dridex 40112 botnet evasion loader trojan

Dridex

Dridex Loader

Checks whether UAC is enabled

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-06-22 14:33

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-22 14:33

Reported

2021-06-22 15:05

Platform

win10v20210410

Max time kernel

22s

Max time network

126s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a80c55d86873a82a4898b75b1e364632d6e4c973f0772ca75276987bdb7e333.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3944 wrote to memory of 500 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3944 wrote to memory of 500 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3944 wrote to memory of 500 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\4a80c55d86873a82a4898b75b1e364632d6e4c973f0772ca75276987bdb7e333.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a80c55d86873a82a4898b75b1e364632d6e4c973f0772ca75276987bdb7e333.dll,#1

Network

N/A

Files

memory/500-114-0x0000000000000000-mapping.dmp

memory/500-115-0x0000000073DE0000-0x0000000073E0D000-memory.dmp

memory/500-117-0x0000000003150000-0x000000000329A000-memory.dmp