Malware Analysis Report

2025-01-18 16:26

Sample ID 210623-cnzm4bze1x
Target f778f5cc7bbaee766bc7a1492f2fe5ee8fad58c8f7f20d03108b182a03e90d0e
SHA256 f778f5cc7bbaee766bc7a1492f2fe5ee8fad58c8f7f20d03108b182a03e90d0e
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

f778f5cc7bbaee766bc7a1492f2fe5ee8fad58c8f7f20d03108b182a03e90d0e

Threat Level: Known bad

The file f778f5cc7bbaee766bc7a1492f2fe5ee8fad58c8f7f20d03108b182a03e90d0e 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 02:49

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-23 02:49

Reported

2021-06-23 02:52

Platform

win10v20210408

Max time kernel

28s

Max time network

135s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f778f5cc7bbaee766bc7a1492f2fe5ee8fad58c8f7f20d03108b182a03e90d0e.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 396 wrote to memory of 1772 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 396 wrote to memory of 1772 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 396 wrote to memory of 1772 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\f778f5cc7bbaee766bc7a1492f2fe5ee8fad58c8f7f20d03108b182a03e90d0e.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f778f5cc7bbaee766bc7a1492f2fe5ee8fad58c8f7f20d03108b182a03e90d0e.dll,#1

Network

N/A

Files

memory/1772-114-0x0000000000000000-mapping.dmp

memory/1772-115-0x0000000073C70000-0x0000000073C9E000-memory.dmp

memory/1772-117-0x0000000000E30000-0x0000000000E36000-memory.dmp