Malware Analysis Report

2024-11-30 22:14

Sample ID 241121-fg6vqaycla
Target 8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4.exe
SHA256 8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4
Tags
dridex 22201 botnet discovery loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4

Threat Level: Known bad

The file 8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4.exe was found to be: Known bad.

Malicious Activity Summary

dridex 22201 botnet discovery loader

Dridex

Dridex family

Dridex Loader

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 04:51

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 04:51

Reported

2024-11-21 04:53

Platform

win7-20240903-en

Max time kernel

90s

Max time network

17s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4.dll,#1

Signatures

Dridex

botnet dridex

Dridex family

dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 244

Network

N/A

Files

memory/2468-0-0x0000000000150000-0x0000000000156000-memory.dmp

memory/2468-1-0x0000000075490000-0x00000000754BF000-memory.dmp

memory/2468-2-0x0000000075490000-0x00000000754BF000-memory.dmp

memory/2468-3-0x0000000000150000-0x0000000000156000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 04:51

Reported

2024-11-21 04:53

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

97s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4.dll,#1

Signatures

Dridex

botnet dridex

Dridex family

dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4552 wrote to memory of 1928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4552 wrote to memory of 1928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4552 wrote to memory of 1928 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\8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ce6a5484b7bac3edbc4d2dd60ecedf443011f27a35665c9f4973bff741c20e4.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1928 -ip 1928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1928 -s 620

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/1928-1-0x0000000074FD0000-0x0000000074FFF000-memory.dmp

memory/1928-0-0x0000000001370000-0x0000000001376000-memory.dmp

memory/1928-3-0x0000000001370000-0x0000000001376000-memory.dmp