Malware Analysis Report

2025-03-14 22:27

Sample ID 240407-3bx2yshe9s
Target e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118
SHA256 77e3643e59cc5c95b517ff8291dbb3e86bcabee2b741f3e0b6722d6e1e4e1a29
Tags
upx persistence
score
7/10

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
7/10

SHA256

77e3643e59cc5c95b517ff8291dbb3e86bcabee2b741f3e0b6722d6e1e4e1a29

Threat Level: Shows suspicious behavior

The file e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx persistence

UPX packed file

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 23:20

Signatures

UPX packed file

upx
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

2024-04-07 23:20

Reported

2024-04-07 23:23

Platform

win7-20240221-en

Max time kernel

143s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe"

Signatures

Executes dropped EXE

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

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\.mscdsr = "C:\\Windows\\system\\lsvchost.exe" C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\system\lsvchost.exe C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe N/A
File opened for modification C:\Windows\system\lsvchost.exe C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe"

C:\Windows\system\lsvchost.exe

C:\Windows\system\lsvchost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 pop3.robobot.org udp
US 15.197.204.56:1088 pop3.robobot.org tcp

Files

memory/832-0-0x0000000000400000-0x0000000000417000-memory.dmp

\Windows\system\lsvchost.exe

MD5 e61917e156c9c2b7bab87c4e05ae1ac2
SHA1 f525db5e16a4e40a2a929d6e580692a14eb28680
SHA256 77e3643e59cc5c95b517ff8291dbb3e86bcabee2b741f3e0b6722d6e1e4e1a29
SHA512 c0d379656253648e8e1ef92e524d8ad6829b59ecd9efe980223bc3affaf26ee08aa7987395518d777bb2ea6813cf22e6cb58b17bed7307b09ad6011f7645003b

memory/832-9-0x0000000000400000-0x0000000000417000-memory.dmp

memory/832-8-0x0000000000250000-0x0000000000267000-memory.dmp

memory/2212-11-0x0000000000400000-0x0000000000417000-memory.dmp

memory/2212-12-0x0000000000400000-0x0000000000417000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 23:20

Reported

2024-04-07 23:23

Platform

win10v2004-20231215-en

Max time kernel

143s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe"

Signatures

Executes dropped EXE

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

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\.mscdsr = "C:\\Windows\\system\\lsvchost.exe" C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\system\lsvchost.exe C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe N/A
File opened for modification C:\Windows\system\lsvchost.exe C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e61917e156c9c2b7bab87c4e05ae1ac2_JaffaCakes118.exe"

C:\Windows\system\lsvchost.exe

C:\Windows\system\lsvchost.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 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 pop3.robobot.org udp
US 15.197.204.56:1088 pop3.robobot.org tcp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 130.118.77.104.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/3184-0-0x0000000000400000-0x0000000000417000-memory.dmp

memory/3184-4-0x0000000000400000-0x0000000000417000-memory.dmp

C:\Windows\System\lsvchost.exe

MD5 e61917e156c9c2b7bab87c4e05ae1ac2
SHA1 f525db5e16a4e40a2a929d6e580692a14eb28680
SHA256 77e3643e59cc5c95b517ff8291dbb3e86bcabee2b741f3e0b6722d6e1e4e1a29
SHA512 c0d379656253648e8e1ef92e524d8ad6829b59ecd9efe980223bc3affaf26ee08aa7987395518d777bb2ea6813cf22e6cb58b17bed7307b09ad6011f7645003b

memory/3008-6-0x0000000000400000-0x0000000000417000-memory.dmp