Malware Analysis Report

2025-01-02 02:51

Sample ID 241202-mgt99a1jgs
Target a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe
SHA256 a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede
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

a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede

Threat Level: Known bad

The file a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe was found to be: Known bad.

Malicious Activity Summary

upx sakula discovery persistence rat trojan

Sakula family

Sakula

Sakula payload

Loads dropped DLL

Deletes itself

Executes dropped EXE

Checks computer location settings

Adds Run key to start application

UPX packed file

Unsigned PE

System Network Configuration Discovery: Internet Connection Discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-02 10:26

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

2024-12-02 10:26

Reported

2024-12-02 10:28

Platform

win7-20241023-en

Max time kernel

110s

Max time network

105s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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

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\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1700 wrote to memory of 1876 N/A C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1700 wrote to memory of 1876 N/A C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1700 wrote to memory of 1876 N/A C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1700 wrote to memory of 1876 N/A C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1700 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe C:\Windows\SysWOW64\cmd.exe
PID 1700 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe C:\Windows\SysWOW64\cmd.exe
PID 1700 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe C:\Windows\SysWOW64\cmd.exe
PID 1700 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe C:\Windows\SysWOW64\cmd.exe
PID 3048 wrote to memory of 2836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3048 wrote to memory of 2836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3048 wrote to memory of 2836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3048 wrote to memory of 2836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe

"C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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/1700-1-0x00000000008F0000-0x000000000090F000-memory.dmp

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

MD5 5236cd55ccc3d14452bf86cc945d1a56
SHA1 67ed5e284493e6483536a89f0740f2d91cb6b101
SHA256 37ddac4398d908ba277705b941e97dd5d24d90ee05cc2a8bf7667faadcc002d0
SHA512 5dbd7f8141d6b01bba085e9fb3002c5873e8f992119a5b845e4dd30aa688ffe4c7717da28398690a6487f0a0b68e07f661b32a729cc663cc63fb64b30a4230d3

memory/1876-11-0x0000000000C80000-0x0000000000C9F000-memory.dmp

memory/1700-10-0x00000000000E0000-0x00000000000FF000-memory.dmp

memory/1700-9-0x00000000000E0000-0x00000000000FF000-memory.dmp

memory/1700-12-0x00000000000E0000-0x00000000000FF000-memory.dmp

memory/1876-13-0x0000000000C80000-0x0000000000C9F000-memory.dmp

memory/1700-21-0x00000000008F0000-0x000000000090F000-memory.dmp

memory/1876-26-0x0000000000C80000-0x0000000000C9F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-02 10:26

Reported

2024-12-02 10:28

Platform

win10v2004-20241007-en

Max time kernel

111s

Max time network

98s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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:\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
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\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.exe

"C:\Users\Admin\AppData\Local\Temp\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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\a3a2931d202c0adfda4e04080b1a601ca7963b842238286dafb052595237eede.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 citrix.vipreclod.com udp
TH 184.22.175.13:80 tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/2368-0-0x0000000000D60000-0x0000000000D7F000-memory.dmp

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

MD5 1e1523880bd42585d741d3a7fd588e70
SHA1 d448ffc308572f39a400275608bb09db4d474485
SHA256 96081054325510962e5e53f8221487acad5955a3444ca2e7164a2fcffd7a23bc
SHA512 503a46e9b80b90016c3f1cac69c141a2ab7bd7814b34244d7e8e4d6c1e929dbe33cf4cf6b89c64127215a7d497d6b97a4846be05d3a02661a67fadf74216f8a0

memory/5008-4-0x0000000000ED0000-0x0000000000EEF000-memory.dmp

memory/2368-6-0x0000000000D60000-0x0000000000D7F000-memory.dmp

memory/5008-8-0x0000000000ED0000-0x0000000000EEF000-memory.dmp

memory/2368-14-0x0000000000D60000-0x0000000000D7F000-memory.dmp

memory/5008-20-0x0000000000ED0000-0x0000000000EEF000-memory.dmp