Malware Analysis Report

2025-01-18 16:31

Sample ID 210623-gke54y8dbj
Target 41303638ec9134f21c1502bc9a1183fc4399a7d621732407b9156a5192bc72fb
SHA256 41303638ec9134f21c1502bc9a1183fc4399a7d621732407b9156a5192bc72fb
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

41303638ec9134f21c1502bc9a1183fc4399a7d621732407b9156a5192bc72fb

Threat Level: Known bad

The file 41303638ec9134f21c1502bc9a1183fc4399a7d621732407b9156a5192bc72fb 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

2021-06-23 12:44

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-23 12:44

Reported

2021-06-23 12:47

Platform

win10v20210408

Max time kernel

25s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\41303638ec9134f21c1502bc9a1183fc4399a7d621732407b9156a5192bc72fb.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 740 wrote to memory of 1040 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 740 wrote to memory of 1040 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 740 wrote to memory of 1040 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\41303638ec9134f21c1502bc9a1183fc4399a7d621732407b9156a5192bc72fb.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\41303638ec9134f21c1502bc9a1183fc4399a7d621732407b9156a5192bc72fb.dll,#1

Network

N/A

Files

memory/1040-114-0x0000000000000000-mapping.dmp

memory/1040-115-0x0000000074430000-0x000000007445E000-memory.dmp

memory/1040-117-0x0000000000C00000-0x0000000000CAE000-memory.dmp