Malware Analysis Report

2025-01-18 16:31

Sample ID 210623-aff84rnvks
Target f9279add38e1e8b8fc12d3d6adf7f80ea79dfe0623573d6ac5f452f501911e9d
SHA256 f9279add38e1e8b8fc12d3d6adf7f80ea79dfe0623573d6ac5f452f501911e9d
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

f9279add38e1e8b8fc12d3d6adf7f80ea79dfe0623573d6ac5f452f501911e9d

Threat Level: Known bad

The file f9279add38e1e8b8fc12d3d6adf7f80ea79dfe0623573d6ac5f452f501911e9d 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 12:59

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-23 12:59

Reported

2021-06-23 13:02

Platform

win10v20210408

Max time kernel

27s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9279add38e1e8b8fc12d3d6adf7f80ea79dfe0623573d6ac5f452f501911e9d.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 3168 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 740 wrote to memory of 3168 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 740 wrote to memory of 3168 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\f9279add38e1e8b8fc12d3d6adf7f80ea79dfe0623573d6ac5f452f501911e9d.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9279add38e1e8b8fc12d3d6adf7f80ea79dfe0623573d6ac5f452f501911e9d.dll,#1

Network

N/A

Files

memory/3168-114-0x0000000000000000-mapping.dmp

memory/3168-115-0x0000000074430000-0x000000007445E000-memory.dmp

memory/3168-117-0x0000000002A80000-0x0000000002A86000-memory.dmp