Malware Analysis Report

2024-10-23 17:04

Sample ID 240401-3z21taaf4w
Target 7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118
SHA256 4e9cb6e83b7ea6e353bafe82262c6b1c1de8a5fb5517fa8bd8bd80b353ca472d
Tags
xloader sw39 loader rat
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

4e9cb6e83b7ea6e353bafe82262c6b1c1de8a5fb5517fa8bd8bd80b353ca472d

Threat Level: Known bad

The file 7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

xloader sw39 loader rat

Xloader

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

Checks processor information in registry

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Enumerates system info in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-01 23:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-01 23:57

Reported

2024-04-02 00:00

Platform

win7-20231129-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe"

Signatures

Xloader

loader xloader

Xloader payload

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2060 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe
PID 2060 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe
PID 2060 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe
PID 2060 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe
PID 2060 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe
PID 2060 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe
PID 2060 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe"

Network

N/A

Files

memory/2060-1-0x00000000000F0000-0x0000000000130000-memory.dmp

memory/2060-0-0x00000000741A0000-0x000000007474B000-memory.dmp

memory/2060-2-0x00000000741A0000-0x000000007474B000-memory.dmp

memory/2060-3-0x00000000741A0000-0x000000007474B000-memory.dmp

memory/2060-4-0x00000000000F0000-0x0000000000130000-memory.dmp

memory/2060-5-0x00000000000F0000-0x0000000000130000-memory.dmp

memory/2272-6-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2272-7-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2272-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2272-10-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2272-12-0x0000000000890000-0x0000000000B93000-memory.dmp

memory/2060-11-0x00000000741A0000-0x000000007474B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-01 23:57

Reported

2024-04-02 00:00

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe"

Signatures

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\7ddf9139b29b7b35647dfa9e585023de_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe

dw20.exe -x -s 936

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 40.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 41.134.221.88.in-addr.arpa udp

Files

memory/4776-0-0x0000000075470000-0x0000000075A21000-memory.dmp

memory/4776-1-0x0000000075470000-0x0000000075A21000-memory.dmp

memory/4776-2-0x00000000012C0000-0x00000000012D0000-memory.dmp

memory/4776-9-0x0000000075470000-0x0000000075A21000-memory.dmp