Malware Analysis Report

2025-03-14 23:11

Sample ID 240407-aesbnafg27
Target e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118
SHA256 d9040bf8ad755cd41dc6266c0e0049f4bac0eaa23f18a26931357fe21c719701
Tags
guloader downloader persistence
score
10/10

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
10/10

SHA256

d9040bf8ad755cd41dc6266c0e0049f4bac0eaa23f18a26931357fe21c719701

Threat Level: Known bad

The file e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

guloader downloader persistence

Guloader,Cloudeye

Checks QEMU agent file

Adds Run key to start application

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 00:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 00:07

Reported

2024-04-07 00:10

Platform

win7-20240221-en

Max time kernel

150s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Checks QEMU agent file

Description Indicator Process Target
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Startup key = "C:\\Users\\Admin\\AppData\\Local\\Temp\\directory\\yourphoen.vbs" C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp

Files

memory/1624-2-0x0000000000320000-0x0000000000331000-memory.dmp

memory/1624-3-0x0000000077830000-0x00000000779D9000-memory.dmp

memory/1624-4-0x0000000077A20000-0x0000000077AF6000-memory.dmp

memory/1624-5-0x0000000077A20000-0x0000000077AF6000-memory.dmp

memory/2728-6-0x0000000000400000-0x0000000000553000-memory.dmp

memory/1624-8-0x0000000000320000-0x0000000000331000-memory.dmp

memory/2728-9-0x00000000001B0000-0x00000000002B0000-memory.dmp

memory/2728-10-0x0000000000400000-0x0000000000553000-memory.dmp

memory/2728-11-0x0000000077830000-0x00000000779D9000-memory.dmp

memory/2728-12-0x0000000077A20000-0x0000000077AF6000-memory.dmp

memory/2728-15-0x00000000001B0000-0x00000000002B0000-memory.dmp

memory/2728-16-0x0000000000400000-0x0000000000553000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 00:07

Reported

2024-04-07 00:10

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Checks QEMU agent file

Description Indicator Process Target
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Startup key = "C:\\Users\\Admin\\AppData\\Local\\Temp\\directory\\yourphoen.vbs" C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e39cccd2c1f0998f0e34fa525132868d_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 198.23.207.82:80 tcp
US 8.8.8.8:53 84.65.42.20.in-addr.arpa udp
US 198.23.207.82:80 tcp

Files

memory/3908-2-0x00000000022B0000-0x00000000022C1000-memory.dmp

memory/3908-3-0x0000000077CF1000-0x0000000077E11000-memory.dmp

memory/3908-5-0x0000000077CF1000-0x0000000077E11000-memory.dmp

memory/4288-4-0x0000000000400000-0x000000000055D000-memory.dmp

memory/4288-8-0x0000000000560000-0x0000000000660000-memory.dmp

memory/3908-7-0x00000000022B0000-0x00000000022C1000-memory.dmp

memory/4288-10-0x0000000000400000-0x000000000055D000-memory.dmp

memory/4288-12-0x0000000000560000-0x0000000000660000-memory.dmp