Malware Analysis Report

2025-03-14 23:28

Sample ID 240407-wvx3qsba94
Target e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118
SHA256 74c5f66fe419826b6fabe10bd1388c02e1a1580a718e9c759f265bc96964a4d4
Tags
persistence
score
8/10

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
8/10

SHA256

74c5f66fe419826b6fabe10bd1388c02e1a1580a718e9c759f265bc96964a4d4

Threat Level: Likely malicious

The file e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

persistence

Modifies AppInit DLL entries

Drops file in System32 directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Modifies data under HKEY_USERS

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 18:15

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 18:15

Reported

2024-04-07 18:15

Platform

win7-20240221-en

Max time kernel

7s

Max time network

10s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe"

Signatures

Modifies AppInit DLL entries

persistence

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\utghqme.dll C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe"

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x0

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x1

Network

N/A

Files

memory/1992-0-0x0000000001000000-0x0000000001017000-memory.dmp

memory/1992-1-0x0000000001000000-0x0000000001017000-memory.dmp

memory/1992-2-0x0000000000220000-0x0000000000221000-memory.dmp

memory/1992-3-0x0000000001000000-0x0000000001017000-memory.dmp

memory/2508-6-0x0000000002AC0000-0x0000000002AC1000-memory.dmp

memory/2604-7-0x0000000002820000-0x0000000002821000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 18:15

Reported

2024-04-07 18:15

Platform

win10v2004-20240226-en

Max time kernel

15s

Max time network

46s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe"

Signatures

Modifies AppInit DLL entries

persistence

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\qfhkdmj.dll C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "124" C:\Windows\system32\LogonUI.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 C:\Windows\system32\LogonUI.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\LogonUI.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e58da64e1e68ce9edcd419b3512835a4_JaffaCakes118.exe"

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa3998055 /state1:0x41c64e6d

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 216.197.17.2.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 24.73.42.20.in-addr.arpa udp

Files

memory/2220-1-0x0000000001000000-0x0000000001017000-memory.dmp

memory/2220-0-0x0000000001000000-0x0000000001017000-memory.dmp

memory/2220-2-0x0000000000E30000-0x0000000000E31000-memory.dmp

memory/2220-3-0x0000000001000000-0x0000000001017000-memory.dmp