Malware Analysis Report

2025-03-14 23:11

Sample ID 240406-31xgqafe53
Target e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118
SHA256 436ebc3aa03e072cc805fb19853ae6c43be065b416378c7d1e85281bfaff2204
Tags
persistence
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

436ebc3aa03e072cc805fb19853ae6c43be065b416378c7d1e85281bfaff2204

Threat Level: Shows suspicious behavior

The file e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

Drops file in Windows directory

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 23:59

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 23:59

Reported

2024-04-07 00:02

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe"

Signatures

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows UDP Control Center = "fxstaller.exe" C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\fxstaller.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe N/A
File opened for modification C:\Windows\fxstaller.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe N/A
N/A N/A C:\Windows\fxstaller.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3416 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 3416 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 3416 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 3416 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 3416 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 3416 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 3416 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 3416 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 4980 wrote to memory of 4752 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Windows\fxstaller.exe
PID 4980 wrote to memory of 4752 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Windows\fxstaller.exe
PID 4980 wrote to memory of 4752 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Windows\fxstaller.exe
PID 4752 wrote to memory of 2232 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 4752 wrote to memory of 2232 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 4752 wrote to memory of 2232 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 4752 wrote to memory of 2232 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 4752 wrote to memory of 2232 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 4752 wrote to memory of 2232 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 4752 wrote to memory of 2232 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 4752 wrote to memory of 2232 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe"

C:\Windows\fxstaller.exe

"C:\Windows\fxstaller.exe"

C:\Windows\fxstaller.exe

"C:\Windows\fxstaller.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 42.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 105.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp
US 8.8.8.8:53 bb.malsiachat.net udp

Files

memory/4980-2-0x0000000000400000-0x000000000044C000-memory.dmp

memory/4980-4-0x0000000000400000-0x000000000044C000-memory.dmp

memory/4980-5-0x0000000000400000-0x000000000044C000-memory.dmp

C:\Windows\fxstaller.exe

MD5 e398d11d48cb29ad19b6f8c397d17075
SHA1 fc9c24d10314584c19189d2ee2861291f6124b73
SHA256 436ebc3aa03e072cc805fb19853ae6c43be065b416378c7d1e85281bfaff2204
SHA512 3d5c61155cf120cd0a5fdb8e4c18c44513f5bf46b8f6b1619821be6f98fcb37ab1fb4d9ec24ad42f3e9e6403c412bedc5b884d8b84ddc42a93c31a1c4ac60e73

memory/2232-17-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-18-0x0000000000400000-0x000000000044C000-memory.dmp

memory/4980-19-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-21-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-22-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-23-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-24-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-25-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-26-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-27-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-28-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-29-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-30-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-31-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-32-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-33-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2232-34-0x0000000000400000-0x000000000044C000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 23:59

Reported

2024-04-07 00:01

Platform

win7-20240220-en

Max time kernel

147s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe"

Signatures

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows UDP Control Center = "fxstaller.exe" C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\fxstaller.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe N/A
File opened for modification C:\Windows\fxstaller.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe N/A
N/A N/A C:\Windows\fxstaller.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2872 wrote to memory of 2504 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe
PID 2504 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Windows\fxstaller.exe
PID 2504 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Windows\fxstaller.exe
PID 2504 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Windows\fxstaller.exe
PID 2504 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe
PID 2564 wrote to memory of 2528 N/A C:\Windows\fxstaller.exe C:\Windows\fxstaller.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e398d11d48cb29ad19b6f8c397d17075_JaffaCakes118.exe"

C:\Windows\fxstaller.exe

"C:\Windows\fxstaller.exe"

C:\Windows\fxstaller.exe

"C:\Windows\fxstaller.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 bb.malsiachat.net udp

Files

memory/2504-4-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2504-2-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2504-6-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2504-7-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2504-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2504-10-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2504-12-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2504-13-0x0000000000400000-0x000000000044C000-memory.dmp

C:\Windows\fxstaller.exe

MD5 e398d11d48cb29ad19b6f8c397d17075
SHA1 fc9c24d10314584c19189d2ee2861291f6124b73
SHA256 436ebc3aa03e072cc805fb19853ae6c43be065b416378c7d1e85281bfaff2204
SHA512 3d5c61155cf120cd0a5fdb8e4c18c44513f5bf46b8f6b1619821be6f98fcb37ab1fb4d9ec24ad42f3e9e6403c412bedc5b884d8b84ddc42a93c31a1c4ac60e73

memory/2528-36-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-37-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2504-38-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-40-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-41-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-42-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-43-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-44-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-45-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-46-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-47-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-48-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-49-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-50-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-51-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-52-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2528-53-0x0000000000400000-0x000000000044C000-memory.dmp