Malware Analysis Report

2025-01-03 08:12

Sample ID 240419-k6gz4sde34
Target f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118
SHA256 d4849995e9cf86d8a9bb9b7f87fda789434ac7c4358cf2c1fe99ccbe01af361b
Tags
metasploit backdoor persistence trojan
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

d4849995e9cf86d8a9bb9b7f87fda789434ac7c4358cf2c1fe99ccbe01af361b

Threat Level: Known bad

The file f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

metasploit backdoor persistence trojan

MetaSploit

Adds policy Run key to start application

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

Drops file in Windows directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-19 09:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-19 09:12

Reported

2024-04-19 09:15

Platform

win7-20240221-en

Max time kernel

147s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe"

Signatures

MetaSploit

trojan backdoor metasploit

Adds policy Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft Driver Setup = "C:\\Windows\\msudp32.exe" C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\msudp32.exe N/A
N/A N/A C:\Windows\msudp32.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\Microsoft Driver Setup = "C:\\Windows\\msudp32.exe" C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1296 set thread context of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 2672 set thread context of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\msudp32.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A
File opened for modification C:\Windows\msudp32.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A
File created C:\Windows\logfile32.txt C:\Windows\msudp32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1296 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1296 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1296 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1296 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1296 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1296 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1296 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1296 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 2900 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Windows\msudp32.exe
PID 2900 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Windows\msudp32.exe
PID 2900 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Windows\msudp32.exe
PID 2900 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Windows\msudp32.exe
PID 2672 wrote to memory of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 2672 wrote to memory of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 2672 wrote to memory of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 2672 wrote to memory of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 2672 wrote to memory of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 2672 wrote to memory of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 2672 wrote to memory of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 2672 wrote to memory of 2540 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe

C:\Windows\msudp32.exe

"C:\Windows\msudp32.exe"

C:\Windows\msudp32.exe

C:\Windows\msudp32.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 messenger.tinypic.name udp

Files

memory/2900-0-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2900-2-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2900-4-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2900-6-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2900-8-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2900-10-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2900-11-0x0000000000400000-0x0000000000452000-memory.dmp

C:\Windows\msudp32.exe

MD5 f9fb08ed4f08993119ae5e8b299ea601
SHA1 a48a9c554e9ae628d93d81d69cc9aa193bedef64
SHA256 d4849995e9cf86d8a9bb9b7f87fda789434ac7c4358cf2c1fe99ccbe01af361b
SHA512 ebdc8fe0c817049e8a63238ae62b593d412d04559c5d534071602b168d7f9b67e5185473b46022b94bd6472562cc79067501e389c930e56df45d611a455c00be

memory/2540-33-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-36-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-37-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-38-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-39-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-40-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-41-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-42-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-43-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-44-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-45-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-46-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-47-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-48-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2540-49-0x0000000000400000-0x0000000000452000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-19 09:12

Reported

2024-04-19 09:15

Platform

win10v2004-20240412-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe"

Signatures

MetaSploit

trojan backdoor metasploit

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft Driver Setup = "C:\\Windows\\msudp32.exe" C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\msudp32.exe N/A
N/A N/A C:\Windows\msudp32.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\Microsoft Driver Setup = "C:\\Windows\\msudp32.exe" C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1676 set thread context of 4860 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 4464 set thread context of 4272 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\msudp32.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A
File opened for modification C:\Windows\msudp32.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe N/A
File created C:\Windows\logfile32.txt C:\Windows\msudp32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1676 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1676 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1676 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1676 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1676 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1676 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 1676 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe
PID 4860 wrote to memory of 4464 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Windows\msudp32.exe
PID 4860 wrote to memory of 4464 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Windows\msudp32.exe
PID 4860 wrote to memory of 4464 N/A C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe C:\Windows\msudp32.exe
PID 4464 wrote to memory of 4272 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 4464 wrote to memory of 4272 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 4464 wrote to memory of 4272 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 4464 wrote to memory of 4272 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 4464 wrote to memory of 4272 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 4464 wrote to memory of 4272 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe
PID 4464 wrote to memory of 4272 N/A C:\Windows\msudp32.exe C:\Windows\msudp32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f9fb08ed4f08993119ae5e8b299ea601_JaffaCakes118.exe

C:\Windows\msudp32.exe

"C:\Windows\msudp32.exe"

C:\Windows\msudp32.exe

C:\Windows\msudp32.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 messenger.tinypic.name udp
US 8.8.8.8:53 2.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 messenger.tinypic.name udp

Files

memory/4860-0-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4860-2-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4860-3-0x0000000000400000-0x0000000000452000-memory.dmp

C:\Windows\msudp32.exe

MD5 f9fb08ed4f08993119ae5e8b299ea601
SHA1 a48a9c554e9ae628d93d81d69cc9aa193bedef64
SHA256 d4849995e9cf86d8a9bb9b7f87fda789434ac7c4358cf2c1fe99ccbe01af361b
SHA512 ebdc8fe0c817049e8a63238ae62b593d412d04559c5d534071602b168d7f9b67e5185473b46022b94bd6472562cc79067501e389c930e56df45d611a455c00be

memory/4272-13-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-16-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-17-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-18-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-19-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-20-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-21-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-22-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-23-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-24-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-25-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-26-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-27-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-28-0x0000000000400000-0x0000000000452000-memory.dmp

memory/4272-29-0x0000000000400000-0x0000000000452000-memory.dmp