Malware Analysis Report

2025-01-02 02:49

Sample ID 241126-dcketazqew
Target b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad
SHA256 b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad
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

b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad

Threat Level: Known bad

The file b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad was found to be: Known bad.

Malicious Activity Summary

upx sakula discovery persistence rat trojan

Sakula family

Sakula

Sakula payload

Deletes itself

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Adds Run key to start application

UPX packed file

Unsigned PE

System Network Configuration Discovery: Internet Connection Discovery

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

2024-11-26 02:51

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

2024-11-26 02:51

Reported

2024-11-26 02:54

Platform

win7-20240903-en

Max time kernel

141s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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

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\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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:\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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2652 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2652 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2652 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2652 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2652 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe C:\Windows\SysWOW64\cmd.exe
PID 2652 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe C:\Windows\SysWOW64\cmd.exe
PID 2652 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe C:\Windows\SysWOW64\cmd.exe
PID 2652 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe C:\Windows\SysWOW64\cmd.exe
PID 3044 wrote to memory of 2992 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3044 wrote to memory of 2992 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3044 wrote to memory of 2992 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3044 wrote to memory of 2992 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe

"C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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 76.223.54.146:80 www.polarroute.com tcp
US 76.223.54.146:80 www.polarroute.com tcp
US 76.223.54.146:80 www.polarroute.com tcp
US 76.223.54.146:80 www.polarroute.com tcp
US 8.8.8.8:53 www.northpoleroute.com udp

Files

memory/2652-0-0x0000000000400000-0x000000000041E000-memory.dmp

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

MD5 55a7a5765a9fb81ebaf63e801889057c
SHA1 d2ce14c49c21b8e67b15a20f35b620101ab582fe
SHA256 cca6feb198bcb0a6dc4441c74f404dfd0bf921a98d5e365f629504b448db1cd9
SHA512 a175b83a2ee5f273c871149b2976acc167f1c12296b7b8ac3ed89170da0dc22c5e7697d954f5df35c806b74f8fd293e98df9d3ff3a6a8a632f5f78cdb55bbeb8

memory/2652-6-0x00000000003D0000-0x00000000003EE000-memory.dmp

memory/2652-7-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2652-8-0x00000000003D0000-0x00000000003EE000-memory.dmp

memory/2720-9-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2652-17-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2720-21-0x0000000000400000-0x000000000041E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-26 02:51

Reported

2024-11-26 02:54

Platform

win10v2004-20241007-en

Max time kernel

140s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.exe

"C:\Users\Admin\AppData\Local\Temp\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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\b541c65ebbcd30e3ea4c3d5c2bb4832e9de3c1ab62fa46f15a76dc57d21b86ad.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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 48.169.248.13.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 13.248.169.48:80 www.polarroute.com tcp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.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 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.northpoleroute.com udp

Files

memory/4388-0-0x0000000000400000-0x000000000041E000-memory.dmp

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

MD5 5906e11144f302d66c0ae2d681a7ce3e
SHA1 16d2fb6b6fe6398aee37e2f7aa3097d11fe1d6fd
SHA256 e4d31134a8e225c424b0c76a9d9e0e826dcf911d25fec1786d9c575d0fdc35bc
SHA512 93c8894063e4db64a5c4a1e3bcdf3009256ca4518e1bdf728377fe8983cede2d61314673b3e15a5fe0c143af67d54031649313f5e925d5fd752abe571aa99009

memory/4388-5-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2504-7-0x0000000000400000-0x000000000041E000-memory.dmp

memory/4388-13-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2504-19-0x0000000000400000-0x000000000041E000-memory.dmp