Malware Analysis Report

2025-03-15 05:52

Sample ID 240627-t7gkeazfna
Target 16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118
SHA256 466527895bcda52e3b7cc58b229e1b5801984f70f96144406d12c27288eb10e6
Tags
vmprotect upx 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

466527895bcda52e3b7cc58b229e1b5801984f70f96144406d12c27288eb10e6

Threat Level: Likely malicious

The file 16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

vmprotect upx persistence

Boot or Logon Autostart Execution: Active Setup

Checks computer location settings

UPX packed file

VMProtect packed file

Loads dropped DLL

Executes dropped EXE

Drops file in System32 directory

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-27 16:41

Signatures

UPX packed file

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

VMProtect packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-27 16:41

Reported

2024-06-27 16:44

Platform

win7-20240508-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe"

Signatures

Boot or Logon Autostart Execution: Active Setup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{7890g421-b1gf-14d0-89bb-0090ce808e85} C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{7890g421-b1gf-14d0-89bb-0090ce808e85}\StubPath = "C:\\Windows\\system32\\System64.exe" C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\System64.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
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VMProtect packed file

vmprotect
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
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Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\System64.exe C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\System64.exe C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2016 set thread context of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\System64.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1252 wrote to memory of 2016 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 1252 wrote to memory of 2016 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 1252 wrote to memory of 2016 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 1252 wrote to memory of 2016 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 1252 wrote to memory of 2016 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 1252 wrote to memory of 2016 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 1252 wrote to memory of 2016 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 2016 wrote to memory of 1992 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe

Processes

C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe"

C:\Windows\SysWOW64\System64.exe

"C:\Windows\system32\System64.exe"

C:\Windows\SysWOW64\userinit.exe

"C:\Windows\system32\userinit.exe"

Network

N/A

Files

memory/1252-0-0x0000000000400000-0x000000000042A000-memory.dmp

\Windows\SysWOW64\System64.exe

MD5 16ba90f81e9fa9467e88608b4b1513d8
SHA1 1d3868fe2fdfae28feea33137b79f4cb2fb05146
SHA256 466527895bcda52e3b7cc58b229e1b5801984f70f96144406d12c27288eb10e6
SHA512 8cd4ccb11b54ea8d28204b79b41b5ec54a10595d34d44eebc735e8fe5d1b55d043467eaf14eeb282c7e600fe6ee2e006fe0eab279a782dc25e577ea9abd633b5

memory/1252-4-0x0000000000840000-0x000000000086A000-memory.dmp

memory/1252-9-0x0000000000400000-0x000000000042A000-memory.dmp

memory/2016-10-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1992-12-0x0000000000400000-0x000000000042A000-memory.dmp

memory/2016-34-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1992-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1992-26-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1992-23-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1992-20-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1992-17-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1992-14-0x0000000000400000-0x000000000042A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-27 16:41

Reported

2024-06-27 16:44

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe"

Signatures

Boot or Logon Autostart Execution: Active Setup

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{7890g421-b1gf-14d0-89bb-0090ce808e85}\StubPath = "C:\\Windows\\system32\\System64.exe" C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{7890g421-b1gf-14d0-89bb-0090ce808e85} C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\System64.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\System64.exe N/A
N/A N/A C:\Windows\SysWOW64\System64.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
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VMProtect packed file

vmprotect
Description Indicator Process Target
N/A N/A N/A N/A
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Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\System64.exe C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\System64.exe C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1852 set thread context of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe

Enumerates physical storage devices

Program crash

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\System64.exe N/A
N/A N/A C:\Windows\SysWOW64\System64.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 748 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 748 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 748 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe C:\Windows\SysWOW64\System64.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe
PID 1852 wrote to memory of 944 N/A C:\Windows\SysWOW64\System64.exe C:\Windows\SysWOW64\userinit.exe

Processes

C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\16ba90f81e9fa9467e88608b4b1513d8_JaffaCakes118.exe"

C:\Windows\SysWOW64\System64.exe

"C:\Windows\system32\System64.exe"

C:\Windows\SysWOW64\userinit.exe

"C:\Windows\system32\userinit.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 944 -ip 944

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 12

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 --field-trial-handle=3988,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4160 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp

Files

memory/748-0-0x0000000000400000-0x000000000042A000-memory.dmp

memory/748-1-0x0000000000425000-0x0000000000426000-memory.dmp

C:\Windows\SysWOW64\System64.exe

MD5 16ba90f81e9fa9467e88608b4b1513d8
SHA1 1d3868fe2fdfae28feea33137b79f4cb2fb05146
SHA256 466527895bcda52e3b7cc58b229e1b5801984f70f96144406d12c27288eb10e6
SHA512 8cd4ccb11b54ea8d28204b79b41b5ec54a10595d34d44eebc735e8fe5d1b55d043467eaf14eeb282c7e600fe6ee2e006fe0eab279a782dc25e577ea9abd633b5

memory/748-14-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1852-15-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1852-18-0x00000000021C0000-0x00000000021EA000-memory.dmp

memory/944-19-0x0000000000400000-0x000000000042A000-memory.dmp

memory/944-23-0x0000000000400000-0x000000000042A000-memory.dmp

memory/944-22-0x0000000000400000-0x000000000042A000-memory.dmp

memory/1852-28-0x00000000021C0000-0x00000000021EA000-memory.dmp

memory/1852-27-0x0000000000400000-0x000000000042A000-memory.dmp

memory/944-21-0x0000000000400000-0x000000000042A000-memory.dmp

memory/944-20-0x0000000000400000-0x000000000042A000-memory.dmp