Malware Analysis Report

2025-01-18 16:29

Sample ID 210622-g382yfyfhx
Target b6124d6acf57d811c2b5bee9057ec0e9cf519e720a9415e971d5dff2b53603c0
SHA256 b6124d6acf57d811c2b5bee9057ec0e9cf519e720a9415e971d5dff2b53603c0
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

b6124d6acf57d811c2b5bee9057ec0e9cf519e720a9415e971d5dff2b53603c0

Threat Level: Known bad

The file b6124d6acf57d811c2b5bee9057ec0e9cf519e720a9415e971d5dff2b53603c0 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 07:33

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-22 07:33

Reported

2021-06-22 07:36

Platform

win10v20210410

Max time kernel

19s

Max time network

112s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b6124d6acf57d811c2b5bee9057ec0e9cf519e720a9415e971d5dff2b53603c0.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 3256 wrote to memory of 912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3256 wrote to memory of 912 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3256 wrote to memory of 912 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\b6124d6acf57d811c2b5bee9057ec0e9cf519e720a9415e971d5dff2b53603c0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b6124d6acf57d811c2b5bee9057ec0e9cf519e720a9415e971d5dff2b53603c0.dll,#1

Network

N/A

Files

memory/912-114-0x0000000000000000-mapping.dmp

memory/912-115-0x0000000073D70000-0x0000000073D9E000-memory.dmp

memory/912-117-0x00000000012D0000-0x00000000012D6000-memory.dmp