Malware Analysis Report

2025-08-05 20:57

Sample ID 240404-v9wyjsdh31
Target be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118
SHA256 4de1fe67e0edd7e75e84a04beff244dcb46e9b7ff288cac8cf531ff62ebcf1f3
Tags
persistence
score
7/10

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
7/10

SHA256

4de1fe67e0edd7e75e84a04beff244dcb46e9b7ff288cac8cf531ff62ebcf1f3

Threat Level: Shows suspicious behavior

The file be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Checks computer location settings

Adds Run key to start application

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-04 17:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-04 17:41

Reported

2024-04-04 17:44

Platform

win7-20240221-en

Max time kernel

122s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart" C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\winhash_up.exez C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon7.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon12.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon5.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon6.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon10.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\winhash_up.exe C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon2.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon3.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\bugMAKER.bat C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\winhash_up.exez C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon13.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon14.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

cmd /c C:\Windows\bugMAKER.bat

Network

N/A

Files

C:\Windows\bugMAKER.bat

MD5 b4e54ab8a0334d02ca4e1528630bacae
SHA1 a633073584aadb70b2e1d1ea4e8e35261defd931
SHA256 8c4ee9d7655fdd5a8e3cf0180409811023e54ca1b2030acfa8787679bb5ea820
SHA512 02eef5fd337d0dd4014ab08f1a66c34eded1e1a04206e8c3a8efd257b62d7e68746e0f537bc5717d187188dc93549d12427b0556f974b4da0d1171b1325ae0e4

memory/2580-62-0x0000000002260000-0x0000000002261000-memory.dmp

memory/2232-67-0x0000000000400000-0x000000000042D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-04 17:41

Reported

2024-04-04 17:44

Platform

win10v2004-20240226-en

Max time kernel

114s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation C:\Windows\SysWOW64\cmd.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart" C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\bugMAKER.bat C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon3.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon5.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon6.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon2.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon7.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon10.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon12.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\SHARE_TEMP\Icon14.ico C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\winhash_up.exez C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File opened for modification C:\Windows\winhash_up.exez C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A
File created C:\Windows\winhash_up.exe C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

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

Processes

C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\be9b5d1086e6cf9a90f9db7349a3035c_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Windows\bugMAKER.bat

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 --mojo-platform-channel-handle=4072 --field-trial-handle=2272,i,17338911640954948469,1637568328132129119,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 194.77.24.184.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 145.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 216.58.213.10:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 pki.goog udp
US 8.8.8.8:53 pki.goog udp
US 216.239.32.29:80 pki.goog tcp
US 216.239.32.29:80 pki.goog tcp
US 8.8.8.8:53 10.213.58.216.in-addr.arpa udp
US 8.8.8.8:53 29.32.239.216.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

C:\Windows\bugMAKER.bat

MD5 b4e54ab8a0334d02ca4e1528630bacae
SHA1 a633073584aadb70b2e1d1ea4e8e35261defd931
SHA256 8c4ee9d7655fdd5a8e3cf0180409811023e54ca1b2030acfa8787679bb5ea820
SHA512 02eef5fd337d0dd4014ab08f1a66c34eded1e1a04206e8c3a8efd257b62d7e68746e0f537bc5717d187188dc93549d12427b0556f974b4da0d1171b1325ae0e4

memory/316-24-0x0000000000400000-0x000000000042D000-memory.dmp