Malware Analysis Report

2024-09-23 04:01

Sample ID 240616-jbz2rsyemr
Target b25ab99df27853ac0dc404040217a064_JaffaCakes118
SHA256 527e68be741bf2683dcbb618a1b982d066caa395072486d5cd3effee2acc2513
Tags
metasploit backdoor persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

527e68be741bf2683dcbb618a1b982d066caa395072486d5cd3effee2acc2513

Threat Level: Known bad

The file b25ab99df27853ac0dc404040217a064_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

metasploit backdoor persistence trojan

MetaSploit

Adds policy Run key to start application

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Drops file in System32 directory

Suspicious use of SetThreadContext

Drops file in Windows directory

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-16 07:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-16 07:30

Reported

2024-06-16 07:32

Platform

win7-20240508-en

Max time kernel

147s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_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\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft Driver Setup = "C:\\Windows\\system32\\LMVServ.exe" C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\LMVServ.exe N/A
N/A N/A C:\Windows\SysWOW64\LMVServ.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\\system32\\LMVServ.exe" C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\LMVServ.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\LMVServ.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe N/A
File created C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\logfile32.txt C:\Windows\SysWOW64\LMVServ.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\LMVServ.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
N/A N/A C:\Windows\SysWOW64\LMVServ.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2960 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 2100 wrote to memory of 1156 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Windows\SysWOW64\LMVServ.exe
PID 2100 wrote to memory of 1156 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Windows\SysWOW64\LMVServ.exe
PID 2100 wrote to memory of 1156 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Windows\SysWOW64\LMVServ.exe
PID 2100 wrote to memory of 1156 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1156 wrote to memory of 2752 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe"

C:\Windows\SysWOW64\LMVServ.exe

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

C:\Windows\SysWOW64\LMVServ.exe

"C:\Windows\SysWOW64\LMVServ.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.chatcity2011.net udp
US 8.8.8.8:53 www.chatcity2011.net udp
US 8.8.8.8:53 www.bitcity.org udp
US 8.8.8.8:53 www.bitcity.org udp
US 8.8.8.8:53 www.chatcity2011.com udp
US 8.8.8.8:53 www.chatcity2011.com udp
US 8.8.8.8:53 www.chatcity2011.net udp

Files

memory/2960-0-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2100-3-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2100-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2100-7-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2100-9-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2100-10-0x0000000000400000-0x0000000000455000-memory.dmp

\Windows\SysWOW64\LMVServ.exe

MD5 b25ab99df27853ac0dc404040217a064
SHA1 704796775a60ecba4036664afe6f4d2207a46d79
SHA256 527e68be741bf2683dcbb618a1b982d066caa395072486d5cd3effee2acc2513
SHA512 52958012be1d412d314a468ba36ce4b47c73e08f85728fbf75c2d04982c32e371fed587ae0adf266de083cc93dd19eb947b166d4bc8e9d0b5b2ff508fd2886b6

memory/2752-36-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2752-39-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2752-41-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2752-43-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2752-45-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2752-47-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2752-49-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2752-51-0x0000000000400000-0x0000000000455000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 07:30

Reported

2024-06-16 07:33

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_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\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft Driver Setup = "C:\\Windows\\system32\\LMVServ.exe" C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\LMVServ.exe N/A
N/A N/A C:\Windows\SysWOW64\LMVServ.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\\system32\\LMVServ.exe" C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\LMVServ.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\LMVServ.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe N/A
File created C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\logfile32.txt C:\Windows\SysWOW64\LMVServ.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\LMVServ.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe N/A
N/A N/A C:\Windows\SysWOW64\LMVServ.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 392 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 392 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 392 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 392 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 392 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 392 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 392 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 392 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe
PID 1920 wrote to memory of 624 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1920 wrote to memory of 624 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Windows\SysWOW64\LMVServ.exe
PID 1920 wrote to memory of 624 N/A C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe C:\Windows\SysWOW64\LMVServ.exe
PID 624 wrote to memory of 1556 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 624 wrote to memory of 1556 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 624 wrote to memory of 1556 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 624 wrote to memory of 1556 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 624 wrote to memory of 1556 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 624 wrote to memory of 1556 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 624 wrote to memory of 1556 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe
PID 624 wrote to memory of 1556 N/A C:\Windows\SysWOW64\LMVServ.exe C:\Windows\SysWOW64\LMVServ.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b25ab99df27853ac0dc404040217a064_JaffaCakes118.exe"

C:\Windows\SysWOW64\LMVServ.exe

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

C:\Windows\SysWOW64\LMVServ.exe

"C:\Windows\SysWOW64\LMVServ.exe"

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 www.chatcity2011.net udp
US 8.8.8.8:53 www.bitcity.org udp
US 8.8.8.8:53 www.chatcity2011.com udp
US 8.8.8.8:53 www.chatcity2011.com udp
US 8.8.8.8:53 www.chatcity2011.net udp
US 8.8.8.8:53 www.chatcity2011.net udp
US 8.8.8.8:53 www.bitcity.org udp

Files

memory/392-0-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1920-3-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1920-5-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1920-6-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1920-7-0x0000000000400000-0x0000000000455000-memory.dmp

C:\Windows\SysWOW64\LMVServ.exe

MD5 b25ab99df27853ac0dc404040217a064
SHA1 704796775a60ecba4036664afe6f4d2207a46d79
SHA256 527e68be741bf2683dcbb618a1b982d066caa395072486d5cd3effee2acc2513
SHA512 52958012be1d412d314a468ba36ce4b47c73e08f85728fbf75c2d04982c32e371fed587ae0adf266de083cc93dd19eb947b166d4bc8e9d0b5b2ff508fd2886b6

memory/624-13-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1556-23-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-24-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-27-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-29-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-30-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-31-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-33-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-35-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-37-0x0000000000400000-0x0000000000455000-memory.dmp

memory/1556-39-0x0000000000400000-0x0000000000455000-memory.dmp