Malware Analysis Report

2025-01-03 08:19

Sample ID 240704-vh525szcmn
Target 25994e111b223a217e72cad8acdc8358_JaffaCakes118
SHA256 55c5a1cb7c85ff7724aef960b16207b40369d000922bcce0f6a8fa707de81702
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

55c5a1cb7c85ff7724aef960b16207b40369d000922bcce0f6a8fa707de81702

Threat Level: Known bad

The file 25994e111b223a217e72cad8acdc8358_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

Suspicious use of SetThreadContext

Drops file in System32 directory

Drops file in Windows directory

Program crash

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-04 17:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-04 17:00

Reported

2024-07-04 17:09

Platform

win7-20240508-en

Max time kernel

150s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_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\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft Driver Setup = "C:\\Windows\\system32\\UReg.exe" C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\UReg.exe N/A
N/A N/A C:\Windows\SysWOW64\UReg.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\\UReg.exe" C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\UReg.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\UReg.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe N/A
File created C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe N/A

Drops file in Windows directory

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\UReg.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe N/A
N/A N/A C:\Windows\SysWOW64\UReg.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2296 wrote to memory of 2792 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 2792 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Windows\SysWOW64\UReg.exe
PID 2792 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Windows\SysWOW64\UReg.exe
PID 2792 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Windows\SysWOW64\UReg.exe
PID 2792 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe
PID 2684 wrote to memory of 2588 N/A C:\Windows\SysWOW64\UReg.exe C:\Windows\SysWOW64\UReg.exe

Processes

C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe"

C:\Windows\SysWOW64\UReg.exe

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

C:\Windows\SysWOW64\UReg.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.chatcity2011.net udp
US 8.8.8.8:53 www.bitcity.org udp
GB 18.172.89.72:81 www.bitcity.org tcp
GB 18.172.89.72:80 www.bitcity.org tcp
US 8.8.8.8:53 www.chatcity2011.com udp
US 8.8.8.8:53 www.bitcity.org udp
GB 18.172.89.122:81 www.bitcity.org tcp
GB 18.172.89.122:80 www.bitcity.org tcp

Files

memory/2792-2-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2792-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2792-6-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2792-8-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2792-9-0x0000000000400000-0x0000000000455000-memory.dmp

\Windows\SysWOW64\UReg.exe

MD5 25994e111b223a217e72cad8acdc8358
SHA1 31282dc84aab65f50845d41574d32106e990fa7b
SHA256 55c5a1cb7c85ff7724aef960b16207b40369d000922bcce0f6a8fa707de81702
SHA512 14e965a1e70c9e8cb97746c9987280bdf5c1a2493a70c2a9c118fdee5df91d31d579bc97007cf11955820889e860047750b346a93a85d1fcea3935761621be24

memory/2588-34-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-37-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-38-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-41-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-42-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-43-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-44-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-45-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-48-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2588-49-0x0000000000400000-0x0000000000455000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-04 17:00

Reported

2024-07-04 17:13

Platform

win10v2004-20240611-en

Max time kernel

132s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe"

Signatures

MetaSploit

trojan backdoor metasploit

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 560 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 560 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 560 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 560 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 560 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 560 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 560 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe
PID 560 wrote to memory of 3308 N/A C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\25994e111b223a217e72cad8acdc8358_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3308 -ip 3308

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3308 -s 196

Network

Country Destination Domain Proto
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 59.170.16.2.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/3308-2-0x0000000000400000-0x0000000000455000-memory.dmp

memory/3308-4-0x0000000000400000-0x0000000000455000-memory.dmp