Malware Analysis Report

2024-12-07 22:10

Sample ID 221017-kshz9abchr
Target 4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a
SHA256 4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a
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

4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a

Threat Level: Known bad

The file 4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a was found to be: Known bad.

Malicious Activity Summary

sakula persistence rat trojan

Sakula family

Sakula

Sakula payload

Executes dropped EXE

Checks computer location settings

Deletes itself

Loads dropped DLL

Adds Run key to start application

Enumerates physical storage devices

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-10-17 08:51

Signatures

Sakula family

sakula

Sakula payload

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

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-17 08:51

Reported

2022-10-17 08:54

Platform

win7-20220812-en

Max time kernel

146s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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

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\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 536 wrote to memory of 1568 N/A C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 536 wrote to memory of 1568 N/A C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 536 wrote to memory of 1568 N/A C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 536 wrote to memory of 1568 N/A C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 536 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe C:\Windows\SysWOW64\cmd.exe
PID 536 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe C:\Windows\SysWOW64\cmd.exe
PID 536 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe C:\Windows\SysWOW64\cmd.exe
PID 536 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe C:\Windows\SysWOW64\cmd.exe
PID 1668 wrote to memory of 700 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1668 wrote to memory of 700 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1668 wrote to memory of 700 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1668 wrote to memory of 700 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe

"C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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 204.11.56.48:80 www.polarroute.com tcp
US 204.11.56.48:80 www.polarroute.com tcp
US 204.11.56.48:80 www.polarroute.com tcp
US 204.11.56.48:80 www.polarroute.com tcp
US 204.11.56.48:80 www.polarroute.com tcp
US 8.8.8.8:53 www.northpoleroute.com udp

Files

memory/536-54-0x0000000076831000-0x0000000076833000-memory.dmp

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

MD5 72942c29074696b7496023e47648cae6
SHA1 faab9b01751a3d379431c947ffef93efe3b8d453
SHA256 3a397d21a98c9e532456053c3e530ad9ade9a305bec19729bfe1d7c767cc2590
SHA512 f11237053cd5ffe899ebbbb476112a17a98ee2246288b89c13d73f0c045da2d9f7e2bcef543b1d14616012d9b1616bb55150514ec7f20461b566e415baed64a3

memory/1568-56-0x0000000000000000-mapping.dmp

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

MD5 72942c29074696b7496023e47648cae6
SHA1 faab9b01751a3d379431c947ffef93efe3b8d453
SHA256 3a397d21a98c9e532456053c3e530ad9ade9a305bec19729bfe1d7c767cc2590
SHA512 f11237053cd5ffe899ebbbb476112a17a98ee2246288b89c13d73f0c045da2d9f7e2bcef543b1d14616012d9b1616bb55150514ec7f20461b566e415baed64a3

memory/1668-59-0x0000000000000000-mapping.dmp

memory/700-60-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-17 08:51

Reported

2022-10-17 08:54

Platform

win10v2004-20220812-en

Max time kernel

136s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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

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\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe

"C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.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 204.11.56.48:80 www.polarroute.com tcp
US 204.11.56.48:80 www.polarroute.com tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
NL 95.101.78.82:80 tcp
NL 104.80.225.205:443 tcp
US 52.182.143.208:443 tcp
US 204.11.56.48:80 www.polarroute.com tcp
NL 8.248.5.254:80 tcp
NL 8.248.5.254:80 tcp
US 204.11.56.48:80 www.polarroute.com tcp
US 8.8.8.8:53 www.northpoleroute.com udp
US 8.8.8.8:53 www.northpoleroute.com udp
US 8.8.8.8:53 www.northpoleroute.com udp
US 8.8.8.8:53 www.northpoleroute.com udp

Files

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

MD5 cf39c482f088e22b48e824f318afb5bd
SHA1 d923224f77df7eae20c78a7e5e5c5bd7e28d95dd
SHA256 39d47874f844c107085fa78add0c0c52d3c2e89193cf0a95cf8789373a228bef
SHA512 44d5b71ce8acb8567537b6a98aa72311c3f13d4e8308821967b4ead2fe862364fe3b328ae6abb8822cbb5837aaf35df6eaaab7ae1f335ad0cdca513abf07254f

memory/4728-132-0x0000000000000000-mapping.dmp

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

MD5 cf39c482f088e22b48e824f318afb5bd
SHA1 d923224f77df7eae20c78a7e5e5c5bd7e28d95dd
SHA256 39d47874f844c107085fa78add0c0c52d3c2e89193cf0a95cf8789373a228bef
SHA512 44d5b71ce8acb8567537b6a98aa72311c3f13d4e8308821967b4ead2fe862364fe3b328ae6abb8822cbb5837aaf35df6eaaab7ae1f335ad0cdca513abf07254f

memory/432-135-0x0000000000000000-mapping.dmp

memory/4244-136-0x0000000000000000-mapping.dmp