Malware Analysis Report

2025-01-19 07:05

Sample ID 240625-shffdazekk
Target 0e847997195f0ab7cb5cac40753602bf_JaffaCakes118
SHA256 e3cdb634c20ac60551e5986c50c9a928cb9cb57fe647d9fac72501466b44962e
Tags
ramnit banker persistence ransomware spyware stealer trojan upx worm
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

e3cdb634c20ac60551e5986c50c9a928cb9cb57fe647d9fac72501466b44962e

Threat Level: Known bad

The file 0e847997195f0ab7cb5cac40753602bf_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

ramnit banker persistence ransomware spyware stealer trojan upx worm

Ramnit

Executes dropped EXE

UPX packed file

Loads dropped DLL

Adds Run key to start application

Drops file in System32 directory

Sets desktop wallpaper using registry

Drops file in Windows directory

Unsigned PE

Program crash

Enumerates physical storage devices

Modifies Internet Explorer settings

Suspicious use of WriteProcessMemory

Modifies Control Panel

Suspicious use of SendNotifyMessage

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-25 15:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 15:07

Reported

2024-06-25 15:09

Platform

win7-20240419-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe"

Signatures

Ramnit

trojan spyware stealer worm banker ramnit

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe N/A

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\Intel system tool = "C:\\Windows\\system32\\hookdump.exe" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\hookdump.exe C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\hookdump.exe C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Themes\\TranscodedWallpaper.jpg" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\screen.html C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Enumerates physical storage devices

Modifies Control Panel

evasion
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Control Panel\Desktop\WallpaperStyle = "10" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Control Panel\Desktop\Pattern C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Control Panel\Desktop C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Control Panel\Desktop\TileWallpaper = "0" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\Desktop\General C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe

C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 148

Network

N/A

Files

memory/1760-1-0x0000000000400000-0x000000000042E000-memory.dmp

\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe

MD5 609c9eadac4c1cc48b5f89be6c36e276
SHA1 f047b565fdb73d5b75ffaed7b2faa335e82b3514
SHA256 e982967b3a8613149cd29d659a4b4aa6241ef8e4f124458785220e76e8b18325
SHA512 246dab455d7b7661126e79bb9b1b2aee2fee26790b8fde0779d529cfceb295b9df2fb5aca2da1ab3d52f22b4157a46ea8b164e7aa02e842aca2cd27076d85fb5

memory/2752-11-0x0000000000400000-0x0000000000451000-memory.dmp

\Users\Admin\AppData\Local\Temp\~TM1B9C.tmp

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

\Users\Admin\AppData\Local\Temp\~TM1BAC.tmp

MD5 9b98d47916ead4f69ef51b56b0c2323c
SHA1 290a80b4ded0efc0fd00816f373fcea81a521330
SHA256 96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b
SHA512 68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

memory/2752-19-0x0000000000400000-0x0000000000451000-memory.dmp

memory/2752-24-0x0000000000400000-0x0000000000451000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 15:07

Reported

2024-06-25 15:09

Platform

win10v2004-20240508-en

Max time kernel

94s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe"

Signatures

Ramnit

trojan spyware stealer worm banker ramnit

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe N/A

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Intel system tool = "C:\\Windows\\system32\\hookdump.exe" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\hookdump.exe C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\hookdump.exe C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\screen.html C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Modifies Control Panel

evasion
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\TileWallpaper = "0" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\WallpaperStyle = "10" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Pattern C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Desktop\General C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Desktop\General\WallpaperSource = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe

C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1080 -ip 1080

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1080 -s 468

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 3.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/2944-1-0x0000000000400000-0x000000000042E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\0e847997195f0ab7cb5cac40753602bf_JaffaCakes118mgr.exe

MD5 609c9eadac4c1cc48b5f89be6c36e276
SHA1 f047b565fdb73d5b75ffaed7b2faa335e82b3514
SHA256 e982967b3a8613149cd29d659a4b4aa6241ef8e4f124458785220e76e8b18325
SHA512 246dab455d7b7661126e79bb9b1b2aee2fee26790b8fde0779d529cfceb295b9df2fb5aca2da1ab3d52f22b4157a46ea8b164e7aa02e842aca2cd27076d85fb5

memory/1080-7-0x0000000000400000-0x0000000000451000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\~TM4F1A.tmp

MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219