Malware Analysis Report

2024-12-07 22:05

Sample ID 241117-weksgazkgn
Target 441c92fe90adf185d627410be0a9e0488e70afd4.exe
SHA256 84c00741099c035fb5059cdb3da09afdc6b64d3b6433bbaca4e4a454ccff239a
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

84c00741099c035fb5059cdb3da09afdc6b64d3b6433bbaca4e4a454ccff239a

Threat Level: Known bad

The file 441c92fe90adf185d627410be0a9e0488e70afd4.exe was found to be: Known bad.

Malicious Activity Summary

upx sakula discovery persistence rat trojan

Sakula family

Sakula

Sakula payload

Checks computer location settings

Deletes itself

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

UPX packed file

System Network Configuration Discovery: Internet Connection Discovery

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Runs ping.exe

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 17:50

Signatures

Sakula family

sakula

Sakula payload

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

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

2024-11-17 17:50

Reported

2024-11-17 17:52

Platform

win7-20240729-en

Max time kernel

125s

Max time network

107s

Command Line

"C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.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\441c92fe90adf185d627410be0a9e0488e70afd4.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

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\441c92fe90adf185d627410be0a9e0488e70afd4.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:\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\441c92fe90adf185d627410be0a9e0488e70afd4.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1520 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1520 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1520 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1520 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1520 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe C:\Windows\SysWOW64\cmd.exe
PID 1520 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe C:\Windows\SysWOW64\cmd.exe
PID 1520 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe C:\Windows\SysWOW64\cmd.exe
PID 1520 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe C:\Windows\SysWOW64\cmd.exe
PID 2868 wrote to memory of 2984 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2868 wrote to memory of 2984 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2868 wrote to memory of 2984 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2868 wrote to memory of 2984 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe

"C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.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\441c92fe90adf185d627410be0a9e0488e70afd4.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.polarroute.com udp
US 13.248.169.48:80 www.polarroute.com tcp
US 13.248.169.48:80 www.polarroute.com tcp
US 13.248.169.48:80 www.polarroute.com tcp
US 13.248.169.48:80 www.polarroute.com tcp
US 8.8.8.8:53 www.northpoleroute.com udp

Files

memory/1520-0-0x0000000000400000-0x0000000000425000-memory.dmp

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

MD5 f8c78d5068a00f8bd792feef75e8a33a
SHA1 0a235c9c2833c724c175b06dad13e708e182dace
SHA256 84f66bb53cc6827ff8266a9dec88717c0461f20f9e5ca9df497bc8047cb4decc
SHA512 350573937579b6f13aa9a0fefd3d91d8c7735e9b0e1b52031b27f63a29994c7cfaec7303ccdcecc33eee62415022b846475e70262257eff4217d8fa6ce2f181f

memory/1520-6-0x0000000000230000-0x0000000000255000-memory.dmp

memory/1520-7-0x0000000000400000-0x0000000000425000-memory.dmp

memory/1520-8-0x0000000000230000-0x0000000000255000-memory.dmp

memory/1396-9-0x0000000000400000-0x0000000000425000-memory.dmp

memory/1520-10-0x0000000000400000-0x0000000000425000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 17:50

Reported

2024-11-17 17:52

Platform

win10v2004-20241007-en

Max time kernel

138s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.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
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\441c92fe90adf185d627410be0a9e0488e70afd4.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\441c92fe90adf185d627410be0a9e0488e70afd4.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

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\441c92fe90adf185d627410be0a9e0488e70afd4.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:\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\441c92fe90adf185d627410be0a9e0488e70afd4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.exe

"C:\Users\Admin\AppData\Local\Temp\441c92fe90adf185d627410be0a9e0488e70afd4.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\441c92fe90adf185d627410be0a9e0488e70afd4.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.polarroute.com udp
US 13.248.169.48:80 www.polarroute.com tcp
US 8.8.8.8:53 48.169.248.13.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 181.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 13.248.169.48:80 www.polarroute.com tcp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 13.248.169.48:80 www.polarroute.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 13.248.169.48:80 www.polarroute.com tcp
US 8.8.8.8:53 www.northpoleroute.com udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.northpoleroute.com udp
US 8.8.8.8:53 www.northpoleroute.com udp

Files

memory/3660-0-0x0000000000400000-0x0000000000425000-memory.dmp

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

MD5 6ef923f4bf7e97326006fc7e0c1fb183
SHA1 073b36c2e9db906f367f772b22d58f3f9dc7ddfe
SHA256 b5466cc4e01446b425487862051f3943acfd828c381d8fb60b22f57aa953b22a
SHA512 ecb0acc5e0903302a1cc1fcb16e34f6ec892ecb10594149e61c9f98002c2b368a01ba0370bf8b9d9b5f023d8d8088d1065f1fdad61a4d0851de211daaa916f50

memory/4124-4-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3660-6-0x0000000000400000-0x0000000000425000-memory.dmp

memory/4124-7-0x0000000000400000-0x0000000000425000-memory.dmp

memory/3660-8-0x0000000000400000-0x0000000000425000-memory.dmp