Malware Analysis Report

2025-01-18 16:26

Sample ID 210623-8zt4tem7ya
Target a1e386aab4100ee8be06764658e01759ccd090f35218700f415cf88bd1931168
SHA256 a1e386aab4100ee8be06764658e01759ccd090f35218700f415cf88bd1931168
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

a1e386aab4100ee8be06764658e01759ccd090f35218700f415cf88bd1931168

Threat Level: Known bad

The file a1e386aab4100ee8be06764658e01759ccd090f35218700f415cf88bd1931168 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 01:06

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-23 01:06

Reported

2021-06-23 01:09

Platform

win10v20210410

Max time kernel

20s

Max time network

125s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a1e386aab4100ee8be06764658e01759ccd090f35218700f415cf88bd1931168.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 3540 wrote to memory of 3940 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3540 wrote to memory of 3940 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3540 wrote to memory of 3940 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\a1e386aab4100ee8be06764658e01759ccd090f35218700f415cf88bd1931168.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a1e386aab4100ee8be06764658e01759ccd090f35218700f415cf88bd1931168.dll,#1

Network

N/A

Files

memory/3940-114-0x0000000000000000-mapping.dmp

memory/3940-115-0x0000000074090000-0x00000000740BE000-memory.dmp

memory/3940-117-0x00000000007F0000-0x00000000007F6000-memory.dmp