Malware Analysis Report

2025-01-18 16:28

Sample ID 210622-4ndzecww8a
Target ffa9e42779120c3c28e3ff3fb982a97b9ea75b4760c5f1512fea346a0b8d1d23
SHA256 ffa9e42779120c3c28e3ff3fb982a97b9ea75b4760c5f1512fea346a0b8d1d23
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

ffa9e42779120c3c28e3ff3fb982a97b9ea75b4760c5f1512fea346a0b8d1d23

Threat Level: Known bad

The file ffa9e42779120c3c28e3ff3fb982a97b9ea75b4760c5f1512fea346a0b8d1d23 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 08:15

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-22 08:15

Reported

2021-06-22 08:18

Platform

win10v20210410

Max time kernel

18s

Max time network

112s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ffa9e42779120c3c28e3ff3fb982a97b9ea75b4760c5f1512fea346a0b8d1d23.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 3908 wrote to memory of 4072 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3908 wrote to memory of 4072 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3908 wrote to memory of 4072 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\ffa9e42779120c3c28e3ff3fb982a97b9ea75b4760c5f1512fea346a0b8d1d23.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ffa9e42779120c3c28e3ff3fb982a97b9ea75b4760c5f1512fea346a0b8d1d23.dll,#1

Network

N/A

Files

memory/4072-114-0x0000000000000000-mapping.dmp

memory/4072-115-0x0000000073B70000-0x0000000073B9E000-memory.dmp

memory/4072-117-0x0000000000400000-0x000000000054A000-memory.dmp