Malware Analysis Report

2024-12-07 22:04

Sample ID 241121-anqjes1mep
Target 77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831
SHA256 77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831
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

77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831

Threat Level: Known bad

The file 77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831 was found to be: Known bad.

Malicious Activity Summary

sakula discovery persistence rat trojan

Sakula

Sakula payload

Sakula family

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Deletes itself

Adds Run key to start application

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

System Network Configuration Discovery: Internet Connection Discovery

Suspicious use of WriteProcessMemory

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 00:21

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

2024-11-21 00:21

Reported

2024-11-21 00:24

Platform

win7-20240708-en

Max time kernel

131s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2324 wrote to memory of 2348 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2324 wrote to memory of 2348 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2324 wrote to memory of 2348 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2324 wrote to memory of 2348 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2324 wrote to memory of 2348 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2324 wrote to memory of 2348 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2324 wrote to memory of 2348 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2324 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Windows\SysWOW64\cmd.exe
PID 2324 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Windows\SysWOW64\cmd.exe
PID 2324 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Windows\SysWOW64\cmd.exe
PID 2324 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe C:\Windows\SysWOW64\cmd.exe
PID 2888 wrote to memory of 1600 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2888 wrote to memory of 1600 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2888 wrote to memory of 1600 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2888 wrote to memory of 1600 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe

"C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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 56fc94097a6f49c368dd4c57d2e9e450
SHA1 41c93f1a584b0cfd012a9ed02839c322bc037e90
SHA256 d468092cf97dcb701b6c5b0383f2c14d263f9b591720990679c9fe381ad4e886
SHA512 7d303f0934195814862e1bfec3cb30b4b30adecb44dbcff861c1e5ce880f918915f4aaa9415b2874c0930e9e9eb25c9d92d108f6c6a942656657c00df54b97cf

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 00:21

Reported

2024-11-21 00:24

Platform

win10v2004-20241007-en

Max time kernel

125s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.exe

"C:\Users\Admin\AppData\Local\Temp\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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\77341cd774cde67b5e443a7a012b2bc91748e1b0d7b30b511fc68d9146e20831.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 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 138.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 229.198.34.52.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 96.136.73.23.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 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 751e12d3204423c83786bc71f88b9f90
SHA1 a9104c2f4345f475d130d4cae4a4a9acfef28998
SHA256 8cf835fcc18f4967ae1e2fa82925c529ae9554acef6bf3032ab943292fd5a7d3
SHA512 e1cd8092b447fdd467029c26c7650a7e82a8201deeea1147c9467f66d4c73d36d8b6fb8e284c6243abbafb5b69cbadff979eae34d43c84477b07a60fe456b34f