Malware Analysis Report

2025-01-02 02:50

Sample ID 241125-qk7arsykfv
Target 6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe
SHA256 6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd
Tags
upx sakula discovery persistence rat 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

6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd

Threat Level: Known bad

The file 6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe was found to be: Known bad.

Malicious Activity Summary

upx sakula discovery persistence rat trojan

Sakula

Sakula family

Sakula payload

Deletes itself

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Adds Run key to start application

UPX packed file

System Location Discovery: System Language Discovery

Unsigned PE

System Network Configuration Discovery: Internet Connection Discovery

Enumerates physical storage devices

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-25 13:20

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-25 13:20

Reported

2024-11-25 13:22

Platform

win7-20240903-en

Max time kernel

110s

Max time network

113s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe"

Signatures

Sakula

trojan rat sakula

Sakula family

sakula

Sakula 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

Deletes itself

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.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\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.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

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\PING.EXE N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe N/A

System Network Configuration Discovery: Internet Connection Discovery

discovery
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1736 wrote to memory of 2088 N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1736 wrote to memory of 2088 N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1736 wrote to memory of 2088 N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1736 wrote to memory of 2088 N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1736 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe C:\Windows\SysWOW64\cmd.exe
PID 1736 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe C:\Windows\SysWOW64\cmd.exe
PID 1736 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe C:\Windows\SysWOW64\cmd.exe
PID 1736 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe C:\Windows\SysWOW64\cmd.exe
PID 3004 wrote to memory of 1320 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3004 wrote to memory of 1320 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3004 wrote to memory of 1320 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3004 wrote to memory of 1320 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe

"C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe"

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 citrix.vipreclod.com udp
TH 184.22.175.13:80 tcp
TH 184.22.175.13:80 tcp

Files

memory/1736-2-0x0000000000BB0000-0x0000000000BCF000-memory.dmp

memory/1736-9-0x0000000000070000-0x000000000008F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

MD5 41712d27e7e64a51bdcc92fb1481d71e
SHA1 7c9c5e0e05cabf8c32b0424e14381bb92343d43c
SHA256 501a0e4a239d7816dc1b28a217e1aac4577e603e3969527d46205947e03c7bb9
SHA512 640cac54737828e6403617576f333f95fc9de8fb447d963ce30e66ed6630bdf9da906c36ee388a315e6f0c6e51f8fc815003b99a91ac549a90e478bdefec1797

memory/2088-11-0x00000000013B0000-0x00000000013CF000-memory.dmp

memory/1736-8-0x0000000000070000-0x000000000008F000-memory.dmp

memory/1736-12-0x0000000000070000-0x000000000008F000-memory.dmp

memory/2088-14-0x00000000013B0000-0x00000000013CF000-memory.dmp

memory/1736-20-0x0000000000BB0000-0x0000000000BCF000-memory.dmp

memory/2088-26-0x00000000013B0000-0x00000000013CF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-25 13:20

Reported

2024-11-25 13:22

Platform

win10v2004-20241007-en

Max time kernel

111s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe"

Signatures

Sakula

trojan rat sakula

Sakula family

sakula

Sakula 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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.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\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.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

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\PING.EXE N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

System Network Configuration Discovery: Internet Connection Discovery

discovery
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe

"C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe"

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\6b938a685680764781b07aae0e03516333dae0594ff89d9da54e147ab3af7cbd.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 74.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
TH 184.22.175.13:80 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/1676-0-0x0000000000CB0000-0x0000000000CCF000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

MD5 567373726f819e9aff2e174c67eb3b59
SHA1 7add24b9696ce0c979faaf514e6be662cddb9a89
SHA256 f23fc155160ad6244fdfe767bf3e99dd8c052a4ff5065ced2ff6a3fa5bc05304
SHA512 ff06cf9ad270d113516509467d28b394e7e1d3a9e4fa6d442834b04bc6ce460b9233a979800f11b0a48a22577f1b04e38a3c12aab5c2fc77f93bf753a4bca085

memory/2696-5-0x00000000006F0000-0x000000000070F000-memory.dmp

memory/1676-6-0x0000000000CB0000-0x0000000000CCF000-memory.dmp

memory/2696-8-0x00000000006F0000-0x000000000070F000-memory.dmp

memory/1676-14-0x0000000000CB0000-0x0000000000CCF000-memory.dmp

memory/2696-19-0x00000000006F0000-0x000000000070F000-memory.dmp