Malware Analysis Report

2025-03-14 22:58

Sample ID 240406-3pwfaaed7z
Target e3913d80a19c252a84060bd9357dc727_JaffaCakes118
SHA256 e4365861c0df9648d074180d77d4deda2cfcf28f9c0aad4f4d72966e5051a1c4
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

e4365861c0df9648d074180d77d4deda2cfcf28f9c0aad4f4d72966e5051a1c4

Threat Level: Likely malicious

The file e3913d80a19c252a84060bd9357dc727_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

persistence

Modifies AppInit DLL entries

Drops file in System32 directory

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 23:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 23:41

Reported

2024-04-06 23:44

Platform

win7-20240221-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3913d80a19c252a84060bd9357dc727_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\e3913d80a19c252a84060bd9357dc727_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3913d80a19c252a84060bd9357dc727_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 152

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 23:41

Reported

2024-04-06 23:42

Platform

win10v2004-20240226-en

Max time kernel

3s

Max time network

4s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3913d80a19c252a84060bd9357dc727_JaffaCakes118.exe"

Signatures

Modifies AppInit DLL entries

persistence

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\iqcgtvb.dll C:\Users\Admin\AppData\Local\Temp\e3913d80a19c252a84060bd9357dc727_JaffaCakes118.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" 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
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\ColorizationColor = "3288365271" C:\Windows\system32\LogonUI.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "24" 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 (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 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
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\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
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\CurrentVersion\Themes\History\AutoColor = "0" 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\e3913d80a19c252a84060bd9357dc727_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\e3913d80a19c252a84060bd9357dc727_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3913d80a19c252a84060bd9357dc727_JaffaCakes118.exe"

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa39af855 /state1:0x41c64e6d

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 udp
N/A 40.74.98.193:443 tcp
US 8.8.8.8:53 udp

Files

memory/1168-0-0x0000000001000000-0x0000000001013800-memory.dmp

memory/1168-1-0x0000000001000000-0x0000000001014000-memory.dmp

memory/1168-2-0x0000000001000000-0x0000000001013800-memory.dmp

memory/1168-3-0x00000000006A0000-0x00000000006A1000-memory.dmp