Malware Analysis Report

2025-01-02 02:51

Sample ID 241203-lftrnayrb1
Target 8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe
SHA256 8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3
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

8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3

Threat Level: Known bad

The file 8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe was found to be: Known bad.

Malicious Activity Summary

upx sakula discovery persistence rat trojan

Sakula payload

Sakula family

Sakula

Executes dropped EXE

Checks computer location settings

Deletes itself

Loads dropped DLL

Adds Run key to start application

UPX packed file

Unsigned PE

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

System Location Discovery: System Language Discovery

Runs ping.exe

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-03 09:28

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

2024-12-03 09:28

Reported

2024-12-03 09:31

Platform

win7-20240903-en

Max time kernel

141s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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
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\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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:\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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1900 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1900 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1900 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1900 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1900 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe C:\Windows\SysWOW64\cmd.exe
PID 1900 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe C:\Windows\SysWOW64\cmd.exe
PID 1900 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe C:\Windows\SysWOW64\cmd.exe
PID 1900 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe C:\Windows\SysWOW64\cmd.exe
PID 2820 wrote to memory of 2800 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2820 wrote to memory of 2800 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2820 wrote to memory of 2800 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2820 wrote to memory of 2800 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe

"C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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/1900-1-0x00000000012A0000-0x00000000012BF000-memory.dmp

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

MD5 8c2ed17d64740919606bd3f80ac82937
SHA1 b75911f4c4024f69b7756c15bba0d935272617cc
SHA256 46059fae3994099460f448f8e735184fa05d380508426ac4ac6c693b6d35e66b
SHA512 76ce517b6e7a3eb2cb82dda6d1b9129b08108276315188b394f1a02516bc53f9e1eec63c843c317e09efa4b0cfd737b2643ee97c43e4a60521619f8efcea0f3a

memory/2380-11-0x0000000000250000-0x000000000026F000-memory.dmp

memory/1900-10-0x0000000000250000-0x000000000026F000-memory.dmp

memory/1900-9-0x0000000000250000-0x000000000026F000-memory.dmp

memory/1900-12-0x00000000012A0000-0x00000000012BF000-memory.dmp

memory/1900-13-0x0000000000250000-0x000000000026F000-memory.dmp

memory/1900-14-0x0000000000250000-0x000000000026F000-memory.dmp

memory/2380-15-0x0000000000250000-0x000000000026F000-memory.dmp

memory/1900-24-0x0000000000250000-0x000000000026F000-memory.dmp

memory/1900-23-0x00000000012A0000-0x00000000012BF000-memory.dmp

memory/2380-30-0x0000000000250000-0x000000000026F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-03 09:28

Reported

2024-12-03 09:31

Platform

win10v2004-20241007-en

Max time kernel

140s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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:\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\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.exe

"C:\Users\Admin\AppData\Local\Temp\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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\8e98528d25912547aa90123827585ba7f0a9c096d999bffe4285263326e4a4c3.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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 98.209.201.84.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 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 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 31.243.111.52.in-addr.arpa udp
TH 184.22.175.13:80 tcp
US 8.8.8.8:53 16.173.189.20.in-addr.arpa udp

Files

memory/5004-0-0x00000000005A0000-0x00000000005BF000-memory.dmp

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

MD5 1df1c429c68792866f36c45dc7c561df
SHA1 20254071587f1374169cafb19ff8d8336cb0454b
SHA256 cbaa22e60e89e8f44bae59453626e16728788603eeaab711c62aeeae587146c4
SHA512 05d3ce96d80b3a2a933d75b388de523d78d170d6746544333138202aaa0bed0d6cdaa1a1e78e03f1cbc2b2eb297dcc101136f3a2e13740fb61c26eb2e79d0508

memory/3796-4-0x0000000000700000-0x000000000071F000-memory.dmp

memory/5004-6-0x00000000005A0000-0x00000000005BF000-memory.dmp

memory/3796-8-0x0000000000700000-0x000000000071F000-memory.dmp

memory/5004-14-0x00000000005A0000-0x00000000005BF000-memory.dmp

memory/3796-17-0x0000000000700000-0x000000000071F000-memory.dmp