Malware Analysis Report

2025-01-18 16:30

Sample ID 210622-ysaxwelsnn
Target 902546b3beba1c47987c9a26a37a108481ca3b94c941ac1ce75abaef27a4e376
SHA256 902546b3beba1c47987c9a26a37a108481ca3b94c941ac1ce75abaef27a4e376
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

902546b3beba1c47987c9a26a37a108481ca3b94c941ac1ce75abaef27a4e376

Threat Level: Known bad

The file 902546b3beba1c47987c9a26a37a108481ca3b94c941ac1ce75abaef27a4e376 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 20:02

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-22 20:02

Reported

2021-06-23 10:03

Platform

win10v20210408

Max time kernel

28s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\902546b3beba1c47987c9a26a37a108481ca3b94c941ac1ce75abaef27a4e376.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 992 wrote to memory of 1420 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 992 wrote to memory of 1420 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 992 wrote to memory of 1420 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\902546b3beba1c47987c9a26a37a108481ca3b94c941ac1ce75abaef27a4e376.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\902546b3beba1c47987c9a26a37a108481ca3b94c941ac1ce75abaef27a4e376.dll,#1

Network

N/A

Files

memory/1420-114-0x0000000000000000-mapping.dmp

memory/1420-115-0x0000000073F10000-0x0000000073F3E000-memory.dmp

memory/1420-117-0x0000000002ED0000-0x000000000301A000-memory.dmp