Malware Analysis Report

2025-01-18 16:29

Sample ID 210622-v9l9f77k8a
Target c76a1c84b98839ebf92a92fb7f5c620e9964046d00f570292babd0550917d694
SHA256 c76a1c84b98839ebf92a92fb7f5c620e9964046d00f570292babd0550917d694
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

c76a1c84b98839ebf92a92fb7f5c620e9964046d00f570292babd0550917d694

Threat Level: Known bad

The file c76a1c84b98839ebf92a92fb7f5c620e9964046d00f570292babd0550917d694 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 04:21

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-22 04:21

Reported

2021-06-22 04:24

Platform

win10v20210410

Max time kernel

18s

Max time network

139s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\c76a1c84b98839ebf92a92fb7f5c620e9964046d00f570292babd0550917d694.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 500 wrote to memory of 720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 500 wrote to memory of 720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 500 wrote to memory of 720 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\c76a1c84b98839ebf92a92fb7f5c620e9964046d00f570292babd0550917d694.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\c76a1c84b98839ebf92a92fb7f5c620e9964046d00f570292babd0550917d694.dll,#1

Network

N/A

Files

memory/720-114-0x0000000000000000-mapping.dmp

memory/720-115-0x0000000074300000-0x000000007432D000-memory.dmp

memory/720-117-0x0000000003150000-0x0000000003156000-memory.dmp