Malware Analysis Report

2025-01-06 07:33

Sample ID 240619-xjf6hs1fmr
Target 000b0d1964ac409542170261d5814fd4_JaffaCakes118
SHA256 2dc5005bf74e29368556251298f9cbfe0e47c9639539119454be00c5afc2eeb7
Tags
persistence privilege_escalation
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

2dc5005bf74e29368556251298f9cbfe0e47c9639539119454be00c5afc2eeb7

Threat Level: Likely malicious

The file 000b0d1964ac409542170261d5814fd4_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

persistence privilege_escalation

Event Triggered Execution: AppInit DLLs

Drops file in System32 directory

Unsigned PE

Modifies data under HKEY_USERS

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-19 18:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-19 18:52

Reported

2024-06-19 18:53

Platform

win7-20240508-en

Max time kernel

6s

Max time network

12s

Command Line

"C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_JaffaCakes118.exe"

Signatures

Event Triggered Execution: AppInit DLLs

persistence privilege_escalation

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\tpaguld.dll C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_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/2428-0-0x0000000001001000-0x0000000001002000-memory.dmp

memory/2428-1-0x0000000001000000-0x0000000001020000-memory.dmp

memory/2428-2-0x0000000001000000-0x0000000001020000-memory.dmp

memory/372-5-0x0000000002E10000-0x0000000002E11000-memory.dmp

memory/2900-6-0x0000000002B30000-0x0000000002B31000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-19 18:52

Reported

2024-06-19 18:52

Platform

win10v2004-20240611-en

Max time kernel

2s

Max time network

5s

Command Line

"C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_JaffaCakes118.exe"

Signatures

Event Triggered Execution: AppInit DLLs

persistence privilege_escalation

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\wksutxh.dll C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_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\CurrentVersion\Themes\History\AutoColor = "0" 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
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\DWM 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\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\ColorizationGlassAttribute = "1" 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 = "120" 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 (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_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\000b0d1964ac409542170261d5814fd4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\000b0d1964ac409542170261d5814fd4_JaffaCakes118.exe"

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x4 /state0:0xa39a2055 /state1:0x41c64e6d

Network

Country Destination Domain Proto
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 138.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/3484-0-0x0000000001000000-0x0000000001020000-memory.dmp

memory/3484-2-0x0000000001000000-0x0000000001020000-memory.dmp

memory/3484-1-0x0000000001001000-0x0000000001002000-memory.dmp