Malware Analysis Report

2024-12-07 21:29

Sample ID 240717-cwkn9a1hmk
Target 511828feb426f51a964f43d29c9003cf_JaffaCakes118
SHA256 6a11e517575bedc388aa82ab44df87cc75bd562fad8f829035e9ca11b033a52a
Tags
xtremerat persistence rat spyware upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6a11e517575bedc388aa82ab44df87cc75bd562fad8f829035e9ca11b033a52a

Threat Level: Known bad

The file 511828feb426f51a964f43d29c9003cf_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware upx

Detect XtremeRAT payload

XtremeRAT

Boot or Logon Autostart Execution: Active Setup

UPX packed file

Adds Run key to start application

Suspicious use of SetThreadContext

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-17 02:25

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-17 02:25

Reported

2024-07-17 02:28

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe"

Signatures

Detect XtremeRAT payload

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

XtremeRAT

persistence spyware rat xtremerat

Boot or Logon Autostart Execution: Active Setup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.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
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\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A
File created C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A
N/A N/A C:\Windows\SysWOW64\notepad.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3600 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3600 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3600 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3600 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3600 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3600 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3600 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3600 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 2732 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe
PID 2732 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe
PID 2732 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe
PID 2732 wrote to memory of 4416 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe

Processes

C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe

C:\Windows\SysWOW64\notepad.exe

notepad.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
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
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
SE 192.229.221.95:80 tcp
US 8.8.8.8:53 udp

Files

memory/2732-2-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/2732-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/2732-5-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/2732-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/4416-10-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/2732-11-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/4416-13-0x0000000000C80000-0x0000000000C96000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-17 02:25

Reported

2024-07-17 02:28

Platform

win7-20240705-en

Max time kernel

149s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe"

Signatures

Detect XtremeRAT payload

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

XtremeRAT

persistence spyware rat xtremerat

Boot or Logon Autostart Execution: Active Setup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.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
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\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A
File created C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe N/A
N/A N/A C:\Windows\SysWOW64\notepad.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3044 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe
PID 3048 wrote to memory of 900 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe
PID 3048 wrote to memory of 900 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe
PID 3048 wrote to memory of 900 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe
PID 3048 wrote to memory of 900 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe
PID 3048 wrote to memory of 900 N/A C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe C:\Windows\SysWOW64\notepad.exe

Processes

C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\511828feb426f51a964f43d29c9003cf_JaffaCakes118.exe

C:\Windows\SysWOW64\notepad.exe

notepad.exe

Network

Country Destination Domain Proto
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp

Files

memory/3048-2-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3048-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3048-5-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3048-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/900-10-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/900-12-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3048-13-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/900-15-0x0000000000C80000-0x0000000000C96000-memory.dmp