Malware Analysis Report

2025-01-02 02:50

Sample ID 241129-dj9chsxkar
Target 5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe
SHA256 5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327
Tags
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

5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327

Threat Level: Known bad

The file 5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe was found to be: Known bad.

Malicious Activity Summary

sakula discovery persistence rat trojan

Sakula family

Sakula

Sakula payload

Deletes itself

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

System Network Configuration Discovery: Internet Connection Discovery

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Runs ping.exe

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-29 03:03

Signatures

Sakula family

sakula

Sakula payload

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

2024-11-29 03:03

Reported

2024-11-29 03:06

Platform

win7-20240903-en

Max time kernel

117s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe"

Signatures

Sakula

trojan rat sakula

Sakula family

sakula

Sakula payload

Description Indicator Process Target
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\AdobeUpdate.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\AdobeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\AdobeUpdate.exe" C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe 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\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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

System Network Configuration Discovery: Internet Connection Discovery

discovery
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A
N/A N/A C:\Windows\SysWOW64\cmd.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\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1448 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 1448 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 1448 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 1448 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 1448 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 1448 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 1448 wrote to memory of 2692 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 1448 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Windows\SysWOW64\cmd.exe
PID 1448 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Windows\SysWOW64\cmd.exe
PID 1448 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Windows\SysWOW64\cmd.exe
PID 1448 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe C:\Windows\SysWOW64\cmd.exe
PID 2084 wrote to memory of 2408 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2084 wrote to memory of 2408 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2084 wrote to memory of 2408 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2084 wrote to memory of 2408 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe

"C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe"

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

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.savmpet.com udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp

Files

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

MD5 16193874677f7c9e777d84398f17f099
SHA1 08496d01e5bc1a44a1984af97f49decb4522582d
SHA256 879ef6b2024fc8ef97592331cc930d0bc4744177d55372be15b5af0fdb64a1b2
SHA512 443a11f7a19963699a9f3898050f497b41db03f267de474af12ad51366384516bd8e37ecaa03d9dca8f7336b217f3f83a60c64f13e53570f32b8af62fcc42fc1

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-29 03:03

Reported

2024-11-29 03:05

Platform

win10v2004-20241007-en

Max time kernel

97s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe"

Signatures

Sakula

trojan rat sakula

Sakula family

sakula

Sakula payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\AdobeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\AdobeUpdate.exe" C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe 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\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe

"C:\Users\Admin\AppData\Local\Temp\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe"

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

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\5d23af9811c2dfca05e773e3c4b74df7a05811a8cc55e944eda58b268474e327N.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.savmpet.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 229.198.34.52.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp

Files

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

MD5 18db1db06aeb4169a13a82d2364da45c
SHA1 2b5215b3f3c49c93d8f58576ec90c26b1bde758b
SHA256 6e65ac9989094a620e5dec22191bfe03f7f6858f49362c0809725208263437c1
SHA512 49798bf413c2ac1a905e413fb07a6fbb2019012b289ac4540ed8232e142ea046b6b23337e2175c82036c2a65221d9525dce2335499da27f59372b3c489e8b534