Malware Analysis Report

2025-01-02 02:51

Sample ID 241204-zkb93awmfj
Target a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe
SHA256 a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17
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

a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17

Threat Level: Known bad

The file a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe was found to be: Known bad.

Malicious Activity Summary

sakula discovery persistence rat trojan

Sakula

Sakula family

Sakula payload

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Deletes itself

Adds Run key to start application

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

System Location Discovery: System Language Discovery

Unsigned PE

Runs ping.exe

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-04 20:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-04 20:46

Reported

2024-12-04 20:48

Platform

win7-20240903-en

Max time kernel

141s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2980 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2980 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2980 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2980 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2980 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe C:\Windows\SysWOW64\cmd.exe
PID 2980 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe C:\Windows\SysWOW64\cmd.exe
PID 2980 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe C:\Windows\SysWOW64\cmd.exe
PID 2980 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe C:\Windows\SysWOW64\cmd.exe
PID 2576 wrote to memory of 2096 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2576 wrote to memory of 2096 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2576 wrote to memory of 2096 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2576 wrote to memory of 2096 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe

"C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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/2980-0-0x0000000000400000-0x000000000041A000-memory.dmp

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

MD5 e299b2662521726fc719e9d6fd972825
SHA1 fc87d6e7b71eba0aaa1dc3e285e3a9411acece9e
SHA256 a7d4835bb20c48e50be804210f202da3894311cf4733013ca9d63666840a137b
SHA512 e5bf6f2243662d381763dcd4146fb269e9513eb690767c7ae9096cbe8894f145db4794030947d712c7a729c79018dcdc96388b5c93cda8fe1c14193305289abf

memory/2728-10-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2980-8-0x0000000000220000-0x000000000023A000-memory.dmp

memory/2980-11-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2980-12-0x0000000000220000-0x000000000023A000-memory.dmp

memory/2980-13-0x0000000000220000-0x000000000023A000-memory.dmp

memory/2728-15-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2980-21-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2728-27-0x0000000000400000-0x000000000041A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-04 20:46

Reported

2024-12-04 20:48

Platform

win10v2004-20241007-en

Max time kernel

140s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.exe

"C:\Users\Admin\AppData\Local\Temp\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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\a8fa2d6b63c3b1386f2a34e79748fe243817262b42f37ad6c55a78162e9c3c17.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 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 92.12.20.2.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 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
TH 184.22.175.13:80 tcp

Files

memory/1612-0-0x0000000000400000-0x000000000041A000-memory.dmp

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

MD5 581c8a2de86505ccec39a4da63ba916c
SHA1 b3f2829844d9e71377491710c85551d457780eb0
SHA256 23690692570199ace8f229dd395bb0c855bb86ed3393707afc9d43c072a180ce
SHA512 43746579885829a51e95f0737abfd39d9e584ff3b27cce1369222de9eed4de04ed0060cc278ac476b84a86a1a04e9abb797b5365b781e8dbfea37443027a5dd1

memory/1612-5-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2536-7-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1612-12-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2536-18-0x0000000000400000-0x000000000041A000-memory.dmp