Malware Analysis Report

2024-12-07 22:04

Sample ID 241121-myal6s1ckc
Target c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe
SHA256 c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51
Tags
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

c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51

Threat Level: Known bad

The file c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe was found to be: Known bad.

Malicious Activity Summary

sakula discovery persistence rat trojan

Sakula

Sakula payload

Sakula family

Executes dropped EXE

Loads dropped DLL

Deletes itself

Checks computer location settings

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

System Network Configuration Discovery: Internet Connection Discovery

Enumerates physical storage devices

Runs ping.exe

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 10:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 10:51

Reported

2024-11-21 10:53

Platform

win7-20240903-en

Max time kernel

110s

Max time network

105s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe 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\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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\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\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1744 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1744 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1744 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1744 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1744 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe C:\Windows\SysWOW64\cmd.exe
PID 1744 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe C:\Windows\SysWOW64\cmd.exe
PID 1744 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe C:\Windows\SysWOW64\cmd.exe
PID 1744 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe C:\Windows\SysWOW64\cmd.exe
PID 2744 wrote to memory of 1140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2744 wrote to memory of 1140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2744 wrote to memory of 1140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2744 wrote to memory of 1140 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe

"C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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

Files

memory/1744-0-0x0000000000400000-0x000000000041A000-memory.dmp

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

MD5 4a784cde844074ab95a45df42c17d6c2
SHA1 25bf1baac30ba2710e8baa5c7390559d3418bde1
SHA256 ea175f3576b1bee974effb40a4e27b3bf693434a3fe2b20a155824e3114980c6
SHA512 72cc31c00372daa9f8949fa437e84eab48722ddb5163ff9759a79e2a037c3499f023f8caa74cb2657698cc820875eef8a0c16b433207bfa372d4347d61a4e007

memory/1744-9-0x00000000001B0000-0x00000000001CA000-memory.dmp

memory/1744-8-0x00000000001B0000-0x00000000001CA000-memory.dmp

memory/1744-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1744-12-0x00000000001B0000-0x00000000001CA000-memory.dmp

memory/1744-13-0x00000000001B0000-0x00000000001CA000-memory.dmp

memory/1252-15-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1744-21-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1252-26-0x0000000000400000-0x000000000041A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 10:51

Reported

2024-11-21 10:53

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe 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\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.exe

"C:\Users\Admin\AppData\Local\Temp\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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\c8d256633a89c310ecbc4288105534f21d4f1df31b08da061cd9e47bdf724a51.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.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 13.227.111.52.in-addr.arpa udp
TH 184.22.175.13:80 tcp

Files

memory/2968-0-0x0000000000400000-0x000000000041A000-memory.dmp

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

MD5 38b1b4632b31c734606a9dc60b5afd16
SHA1 f25525e8b79981632a22a688ee77d0146524db3f
SHA256 06129ffa46f5b0be7798de3478c207e8f22423e6a471baded26c7b3981dc3dbe
SHA512 0419bd30d50c956af3c3966b8cf519146129f07cdfe4b1ce1e7031fe4f60d1d211b7e189c3ee8614ca6dc29db2369d7e42658d3f7d39f318a1ba696241a3bcbe

memory/2968-5-0x0000000000400000-0x000000000041A000-memory.dmp

memory/224-7-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2968-13-0x0000000000400000-0x000000000041A000-memory.dmp

memory/224-18-0x0000000000400000-0x000000000041A000-memory.dmp