Malware Analysis Report

2024-12-07 22:06

Sample ID 221018-bwvc1sdhg7
Target 1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137
SHA256 1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137
Tags
sakula persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137

Threat Level: Known bad

The file 1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137 was found to be: Known bad.

Malicious Activity Summary

sakula persistence rat trojan

Sakula

Sakula payload

Executes dropped EXE

Loads dropped DLL

Deletes itself

Checks computer location settings

Adds Run key to start application

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-10-18 01:30

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-18 01:30

Reported

2022-10-18 01:32

Platform

win7-20220812-en

Max time kernel

130s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe"

Signatures

Sakula

trojan rat 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

Executes dropped EXE

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

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.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\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe N/A

Enumerates physical storage devices

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\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1044 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1044 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1044 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1044 wrote to memory of 836 N/A C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1044 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe C:\Windows\SysWOW64\cmd.exe
PID 1044 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe C:\Windows\SysWOW64\cmd.exe
PID 1044 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe C:\Windows\SysWOW64\cmd.exe
PID 1044 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe C:\Windows\SysWOW64\cmd.exe
PID 1964 wrote to memory of 1620 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1964 wrote to memory of 1620 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1964 wrote to memory of 1620 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1964 wrote to memory of 1620 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe

"C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.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\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.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
TH 184.22.175.13:80 tcp

Files

memory/1044-54-0x0000000075071000-0x0000000075073000-memory.dmp

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

MD5 ca26dcf9c88041c1ec0c927783386d82
SHA1 6f9d9190c85afde952ca56be3272ec300e7da61a
SHA256 4979ccb012a7d28ec0cbe397eefc06d7c48236f0440309e53fd97e39f07d8a8f
SHA512 69921dbcba9dcd4160c96f42d9a68188cae9baf39e902155d593ae74d4640b289a69ca6b5d51f95fadaf08a3d3648e6fc8d8e8895b4bda8fb82014f05923de48

memory/836-57-0x0000000000000000-mapping.dmp

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

MD5 ca26dcf9c88041c1ec0c927783386d82
SHA1 6f9d9190c85afde952ca56be3272ec300e7da61a
SHA256 4979ccb012a7d28ec0cbe397eefc06d7c48236f0440309e53fd97e39f07d8a8f
SHA512 69921dbcba9dcd4160c96f42d9a68188cae9baf39e902155d593ae74d4640b289a69ca6b5d51f95fadaf08a3d3648e6fc8d8e8895b4bda8fb82014f05923de48

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

MD5 ca26dcf9c88041c1ec0c927783386d82
SHA1 6f9d9190c85afde952ca56be3272ec300e7da61a
SHA256 4979ccb012a7d28ec0cbe397eefc06d7c48236f0440309e53fd97e39f07d8a8f
SHA512 69921dbcba9dcd4160c96f42d9a68188cae9baf39e902155d593ae74d4640b289a69ca6b5d51f95fadaf08a3d3648e6fc8d8e8895b4bda8fb82014f05923de48

memory/1044-60-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1044-61-0x00000000003C0000-0x00000000003DA000-memory.dmp

memory/836-62-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1044-63-0x00000000003C0000-0x00000000003DA000-memory.dmp

memory/1044-64-0x00000000003C0000-0x00000000003DA000-memory.dmp

memory/1964-65-0x0000000000000000-mapping.dmp

memory/1044-66-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1620-67-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-18 01:30

Reported

2022-10-18 01:32

Platform

win10v2004-20220812-en

Max time kernel

135s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe"

Signatures

Sakula

trojan rat 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

Executes dropped EXE

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.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\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe N/A

Enumerates physical storage devices

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\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.exe

"C:\Users\Admin\AppData\Local\Temp\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.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\1a81e9a720d63a7e5534fa8101daacfb89fceb1cbd2dc53be16d9f27651bd137.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 8.253.208.113:80 tcp
US 8.253.208.113:80 tcp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.253.208.113:80 tcp
US 8.253.208.113:80 tcp
US 8.8.8.8:53 citrix.vipreclod.com udp
TH 184.22.175.13:80 tcp
NL 104.80.225.205:443 tcp
TH 184.22.175.13:80 tcp
TH 184.22.175.13:80 tcp

Files

memory/4976-132-0x0000000000000000-mapping.dmp

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

MD5 368d6cf63990b33361f17c6fd4207b66
SHA1 2a21c172c32a3ebfe40ccf0679156b696c2ab3ef
SHA256 60c306fd67449c3b6246861da5758e486837d3d3facc839b5bba70fe00dfc014
SHA512 59d5abfb978f2fcd6a0510da339cd044c3c78a064d239dee00b517f4f23089a5af480a79f0b525e5a268f913cb3fc4faed8bc78da32a4a110d4603fb0b001e2f

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

MD5 368d6cf63990b33361f17c6fd4207b66
SHA1 2a21c172c32a3ebfe40ccf0679156b696c2ab3ef
SHA256 60c306fd67449c3b6246861da5758e486837d3d3facc839b5bba70fe00dfc014
SHA512 59d5abfb978f2fcd6a0510da339cd044c3c78a064d239dee00b517f4f23089a5af480a79f0b525e5a268f913cb3fc4faed8bc78da32a4a110d4603fb0b001e2f

memory/4252-135-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4976-136-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4976-137-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1836-138-0x0000000000000000-mapping.dmp

memory/4252-139-0x0000000000400000-0x000000000041A000-memory.dmp

memory/3276-140-0x0000000000000000-mapping.dmp