Malware Analysis Report

2025-01-02 02:49

Sample ID 241127-yg5lrsxmdy
Target 8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe
SHA256 8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6
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

8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6

Threat Level: Known bad

The file 8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe was found to be: Known bad.

Malicious Activity Summary

sakula discovery persistence rat trojan

Sakula

Sakula payload

Sakula family

Deletes itself

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Adds Run key to start application

System Network Configuration Discovery: Internet Connection Discovery

Unsigned PE

Enumerates physical storage devices

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

2024-11-27 19:46

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

2024-11-27 19:46

Reported

2024-11-27 19:48

Platform

win7-20240903-en

Max time kernel

128s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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\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\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2280 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2280 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2280 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2280 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2280 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2280 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2280 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2280 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Windows\SysWOW64\cmd.exe
PID 2280 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Windows\SysWOW64\cmd.exe
PID 2280 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Windows\SysWOW64\cmd.exe
PID 2280 wrote to memory of 2856 N/A C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe C:\Windows\SysWOW64\cmd.exe
PID 2856 wrote to memory of 984 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2856 wrote to memory of 984 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2856 wrote to memory of 984 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2856 wrote to memory of 984 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe

"C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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
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 84464caf2fd92ce065625dfb8f1087db
SHA1 dd94e4e89096974f1ceda52ff81fde47127288f4
SHA256 1ae653d9821db5f83ca95859dc11d4da44cb525b68fc8302829add3a12c3c4e0
SHA512 50b44c48ecc9c04a89cf96378e4a11f49507b6f42764b6f311d874b7e3d0bcea5da45d128cd8cea9441e85cfb9c2da9e8d7ff17dd5ffe687fb6493f037068ee2

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-27 19:46

Reported

2024-11-27 19:48

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.exe

"C:\Users\Admin\AppData\Local\Temp\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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\8de5850dc4e1f158c0a651c8c8559d725cc2e069bcdd577c162d785a3182d4e6.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 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 229.198.34.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
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 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
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 88061b5300b2d8a9bfa3295e0415e10d
SHA1 281a641dbb8313273008bd4c9a53201277b9ac4b
SHA256 3c1d780c7eff61f40f165cfba364b80c434057e2b7cc66aee981e701e2e47403
SHA512 d661cae9a32fb79a2926f0b0d565f7635c7895fe167ed7b39b917bc3c853e3290ebf58c931e18cee9718f35b620ff5e7ba4543639c8cb8c40b145e8a1756596c