Malware Analysis Report

2024-07-11 07:39

Sample ID 240418-hypzmsec96
Target f782fa626b0c53d9cca2fbb29a65f23f_JaffaCakes118
SHA256 2f58a869711d2b28e6ecaac25cc2166daa46f7adfb719b7dd334e01c1474ca9b
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

2f58a869711d2b28e6ecaac25cc2166daa46f7adfb719b7dd334e01c1474ca9b

Threat Level: Known bad

The file f782fa626b0c53d9cca2fbb29a65f23f_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

2024-04-18 07:08

Signatures

Plugx family

plugx

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-18 07:08

Reported

2024-04-18 07:11

Platform

win7-20240221-en

Max time kernel

118s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f782fa626b0c53d9cca2fbb29a65f23f_JaffaCakes118.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f782fa626b0c53d9cca2fbb29a65f23f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f782fa626b0c53d9cca2fbb29a65f23f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2216 -s 224

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-18 07:08

Reported

2024-04-18 07:11

Platform

win10v2004-20240412-en

Max time kernel

125s

Max time network

158s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f782fa626b0c53d9cca2fbb29a65f23f_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 2772 wrote to memory of 1684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2772 wrote to memory of 1684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2772 wrote to memory of 1684 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\f782fa626b0c53d9cca2fbb29a65f23f_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\f782fa626b0c53d9cca2fbb29a65f23f_JaffaCakes118.dll,#1

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4284,i,17229298512878960157,13441031190071685883,262144 --variations-seed-version --mojo-platform-channel-handle=4148 /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1684 -ip 1684

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 600

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 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 198.32.209.4.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 163.233.34.23.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 17.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp

Files

N/A