Malware Analysis Report

2024-10-19 10:16

Sample ID 240407-rnwtwaec9w
Target e5211fbd8221a7ab5403d03bcc8aa250_JaffaCakes118
SHA256 226720c4efd12e957cbf6657b62defbc4e4f2ab491ca4b7bf0fdf3d4e8f121e7
Tags
dridex 22201 botnet loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

226720c4efd12e957cbf6657b62defbc4e4f2ab491ca4b7bf0fdf3d4e8f121e7

Threat Level: Known bad

The file e5211fbd8221a7ab5403d03bcc8aa250_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

dridex 22201 botnet loader

Dridex

Dridex Loader

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-07 14:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 14:20

Reported

2024-04-07 14:23

Platform

win7-20240221-en

Max time kernel

143s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5211fbd8221a7ab5403d03bcc8aa250_JaffaCakes118.dll,#1

Signatures

Dridex

botnet 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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5211fbd8221a7ab5403d03bcc8aa250_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5211fbd8221a7ab5403d03bcc8aa250_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 288

Network

N/A

Files

memory/1736-0-0x00000000751E0000-0x0000000075210000-memory.dmp

memory/1736-1-0x0000000000190000-0x0000000000196000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 14:20

Reported

2024-04-07 14:23

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

157s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5211fbd8221a7ab5403d03bcc8aa250_JaffaCakes118.dll,#1

Signatures

Dridex

botnet 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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3656 wrote to memory of 4720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3656 wrote to memory of 4720 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3656 wrote to memory of 4720 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\e5211fbd8221a7ab5403d03bcc8aa250_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e5211fbd8221a7ab5403d03bcc8aa250_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4720 -ip 4720

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 668

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 27.73.42.20.in-addr.arpa udp

Files

memory/4720-0-0x0000000000D00000-0x0000000000D06000-memory.dmp

memory/4720-1-0x0000000074BB0000-0x0000000074BE0000-memory.dmp

memory/4720-3-0x0000000000D00000-0x0000000000D06000-memory.dmp