Malware Analysis Report

2025-01-18 16:28

Sample ID 210622-kdrwldnn8x
Target 774bf42a3d77a0a623407eadbf886b8679e18d482fe834c978c3ed25c76b27ae
SHA256 774bf42a3d77a0a623407eadbf886b8679e18d482fe834c978c3ed25c76b27ae
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

774bf42a3d77a0a623407eadbf886b8679e18d482fe834c978c3ed25c76b27ae

Threat Level: Known bad

The file 774bf42a3d77a0a623407eadbf886b8679e18d482fe834c978c3ed25c76b27ae 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 07:23

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-22 07:23

Reported

2021-06-22 07:26

Platform

win10v20210408

Max time kernel

27s

Max time network

135s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\774bf42a3d77a0a623407eadbf886b8679e18d482fe834c978c3ed25c76b27ae.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 3128 wrote to memory of 3956 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3128 wrote to memory of 3956 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3128 wrote to memory of 3956 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\774bf42a3d77a0a623407eadbf886b8679e18d482fe834c978c3ed25c76b27ae.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\774bf42a3d77a0a623407eadbf886b8679e18d482fe834c978c3ed25c76b27ae.dll,#1

Network

N/A

Files

memory/3956-114-0x0000000000000000-mapping.dmp

memory/3956-115-0x0000000073990000-0x00000000739BD000-memory.dmp

memory/3956-117-0x0000000002BE0000-0x0000000002BE6000-memory.dmp