Malware Analysis Report

2025-01-18 16:26

Sample ID 210622-jle7a9jbs2
Target fb44d66b8ea6ccbbd4a28bfc627ece6e660ff826c1a383526fb7d27e4dd47fe7
SHA256 fb44d66b8ea6ccbbd4a28bfc627ece6e660ff826c1a383526fb7d27e4dd47fe7
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

fb44d66b8ea6ccbbd4a28bfc627ece6e660ff826c1a383526fb7d27e4dd47fe7

Threat Level: Known bad

The file fb44d66b8ea6ccbbd4a28bfc627ece6e660ff826c1a383526fb7d27e4dd47fe7 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 17:26

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-22 17:26

Reported

2021-06-23 00:25

Platform

win10v20210408

Max time kernel

25s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb44d66b8ea6ccbbd4a28bfc627ece6e660ff826c1a383526fb7d27e4dd47fe7.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 632 wrote to memory of 996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 632 wrote to memory of 996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 632 wrote to memory of 996 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\fb44d66b8ea6ccbbd4a28bfc627ece6e660ff826c1a383526fb7d27e4dd47fe7.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\fb44d66b8ea6ccbbd4a28bfc627ece6e660ff826c1a383526fb7d27e4dd47fe7.dll,#1

Network

N/A

Files

memory/996-114-0x0000000000000000-mapping.dmp

memory/996-115-0x0000000073FB0000-0x0000000073FDE000-memory.dmp

memory/996-117-0x0000000001030000-0x0000000001036000-memory.dmp