Malware Analysis Report

2024-11-13 18:40

Sample ID 240711-y28txsscqq
Target 3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118
SHA256 e83243f92f5509a1fa420a9162928afa77440f57d2886390866efce01b42cf81
Tags
xtremerat persistence rat spyware
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

e83243f92f5509a1fa420a9162928afa77440f57d2886390866efce01b42cf81

Threat Level: Known bad

The file 3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware

Detect XtremeRAT payload

Xtremerat family

XtremeRAT

Boot or Logon Autostart Execution: Active Setup

Adds Run key to start application

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-11 20:18

Signatures

Detect XtremeRAT payload

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

Xtremerat family

xtremerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-11 20:18

Reported

2024-07-11 20:20

Platform

win7-20240704-en

Max time kernel

146s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_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\{1K5QEJSY-U784-26R4-O2A6-S1ND4476BN68} C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{1K5QEJSY-U784-26R4-O2A6-S1ND4476BN68}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{1K5QEJSY-U784-26R4-O2A6-S1ND4476BN68} C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{1K5QEJSY-U784-26R4-O2A6-S1ND4476BN68}\StubPath = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_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\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A
File created C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2416 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 1904 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 1904 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 1904 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 1904 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2416 wrote to memory of 1904 N/A C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\svchost.exe

svchost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 gto.no-ip.info udp

Files

memory/2544-5-0x0000000000C80000-0x0000000000C92000-memory.dmp

memory/2544-7-0x0000000000C80000-0x0000000000C92000-memory.dmp

C:\Windows\InstallDir\Server.exe

MD5 3a932f8a8f43b84143dc0ac039c82839
SHA1 92da96271d3433c87584b90fc54b079254d236b5
SHA256 e83243f92f5509a1fa420a9162928afa77440f57d2886390866efce01b42cf81
SHA512 87ca1b4d50e6c37a49759be063b3fbcd7b75643623d39da2e4faee935dae2e127a7c2cbe0a62d82ba3b6775ea527543406a7525a2c8c091bfc768b94e412095a

memory/1904-11-0x0000000000C80000-0x0000000000C92000-memory.dmp

memory/2416-12-0x0000000000C80000-0x0000000000C92000-memory.dmp

memory/1904-14-0x0000000000C80000-0x0000000000C92000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-11 20:18

Reported

2024-07-11 20:20

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_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
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{1K5QEJSY-U784-26R4-O2A6-S1ND4476BN68}\StubPath = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{1K5QEJSY-U784-26R4-O2A6-S1ND4476BN68} C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{1K5QEJSY-U784-26R4-O2A6-S1ND4476BN68}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{1K5QEJSY-U784-26R4-O2A6-S1ND4476BN68} C:\Windows\SysWOW64\svchost.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_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\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A
File created C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\3a932f8a8f43b84143dc0ac039c82839_JaffaCakes118.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\svchost.exe

svchost.exe

Network

Country Destination Domain Proto
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 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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 gto.no-ip.info udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 10.73.50.20.in-addr.arpa udp

Files

memory/4868-5-0x0000000000C80000-0x0000000000C92000-memory.dmp

C:\Windows\InstallDir\Server.exe

MD5 3a932f8a8f43b84143dc0ac039c82839
SHA1 92da96271d3433c87584b90fc54b079254d236b5
SHA256 e83243f92f5509a1fa420a9162928afa77440f57d2886390866efce01b42cf81
SHA512 87ca1b4d50e6c37a49759be063b3fbcd7b75643623d39da2e4faee935dae2e127a7c2cbe0a62d82ba3b6775ea527543406a7525a2c8c091bfc768b94e412095a

memory/3812-7-0x0000000000C80000-0x0000000000C92000-memory.dmp

memory/2056-8-0x0000000000C80000-0x0000000000C92000-memory.dmp

memory/3812-10-0x0000000000C80000-0x0000000000C92000-memory.dmp