Malware Analysis Report

2024-07-11 07:39

Sample ID 240407-czxszsbc73
Target e3dace173ded785a9af4a9007587eec6_JaffaCakes118
SHA256 dce920f5db90efecc7fb7a6b6399c80fc83e3f1251f160cd1295b6a4b67125d4
Tags
plugx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

dce920f5db90efecc7fb7a6b6399c80fc83e3f1251f160cd1295b6a4b67125d4

Threat Level: Known bad

The file e3dace173ded785a9af4a9007587eec6_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

plugx

Plugx family

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-07 02:31

Signatures

Plugx family

plugx

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 02:31

Reported

2024-04-07 02:34

Platform

win7-20240319-en

Max time kernel

118s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3dace173ded785a9af4a9007587eec6_JaffaCakes118.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3dace173ded785a9af4a9007587eec6_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3dace173ded785a9af4a9007587eec6_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 744 -s 224

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 02:31

Reported

2024-04-07 02:33

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3dace173ded785a9af4a9007587eec6_JaffaCakes118.dll,#1

Signatures

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 2916 wrote to memory of 1604 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2916 wrote to memory of 1604 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2916 wrote to memory of 1604 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\e3dace173ded785a9af4a9007587eec6_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3dace173ded785a9af4a9007587eec6_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1604 -ip 1604

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 600

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 99.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

N/A