Malware Analysis Report

2024-10-19 10:23

Sample ID 210629-ak8cpw8egx
Target a75845fd2f0629eecc27afd1c4c88e02511e034d1c42a6c43ca3cca23a456e1a
SHA256 a75845fd2f0629eecc27afd1c4c88e02511e034d1c42a6c43ca3cca23a456e1a
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

a75845fd2f0629eecc27afd1c4c88e02511e034d1c42a6c43ca3cca23a456e1a

Threat Level: Known bad

The file a75845fd2f0629eecc27afd1c4c88e02511e034d1c42a6c43ca3cca23a456e1a 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

2021-06-29 02:20

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-29 02:20

Reported

2021-06-29 02:23

Platform

win10v20210408

Max time kernel

24s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a75845fd2f0629eecc27afd1c4c88e02511e034d1c42a6c43ca3cca23a456e1a.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 636 wrote to memory of 736 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 636 wrote to memory of 736 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 636 wrote to memory of 736 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\a75845fd2f0629eecc27afd1c4c88e02511e034d1c42a6c43ca3cca23a456e1a.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a75845fd2f0629eecc27afd1c4c88e02511e034d1c42a6c43ca3cca23a456e1a.dll,#1

Network

N/A

Files

memory/736-114-0x0000000000000000-mapping.dmp

memory/736-115-0x00000000742C0000-0x00000000742EE000-memory.dmp

memory/736-117-0x00000000023F0000-0x00000000023F6000-memory.dmp