Malware Analysis Report

2024-11-13 18:43

Sample ID 241108-25pf8ssblk
Target 5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f
SHA256 5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f
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

5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f

Threat Level: Known bad

The file 5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f was found to be: Known bad.

Malicious Activity Summary

sakula discovery persistence rat trojan

Sakula family

Sakula payload

Sakula

Executes dropped EXE

Loads dropped DLL

Deletes itself

Checks computer location settings

Adds Run key to start application

System Location Discovery: System Language Discovery

System Network Configuration Discovery: Internet Connection Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Runs ping.exe

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-08 23:10

Signatures

Sakula family

sakula

Sakula payload

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

2024-11-08 23:10

Reported

2024-11-08 23:12

Platform

win7-20241023-en

Max time kernel

128s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe"

Signatures

Sakula

trojan rat sakula

Sakula family

sakula

Sakula payload

Description Indicator Process Target
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\AdobeUpdate.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\AdobeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\AdobeUpdate.exe" C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.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\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2392 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2392 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2392 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2392 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2392 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2392 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2392 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2392 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe C:\Windows\SysWOW64\cmd.exe
PID 2096 wrote to memory of 3008 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2096 wrote to memory of 3008 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2096 wrote to memory of 3008 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2096 wrote to memory of 3008 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe

"C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe"

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

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.savmpet.com udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp

Files

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

MD5 106fc70746b6bcdfce1c9d41de4bcd2c
SHA1 7dfd536984fdf429ccfeef8020a92255c0c655c6
SHA256 3d4c2a10ceed040518317c0afc3c35992fb384447a0d06800f82345354ac546d
SHA512 0dfc9f0e4b152e9fae2ec7d9bf1676ad13629139fefe6c80b5e7f423429d6163269a91b84974f45e869019bd63420b04c51d134bdd18a62d6628295e52811067

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-08 23:10

Reported

2024-11-08 23:12

Platform

win10v2004-20241007-en

Max time kernel

125s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe"

Signatures

Sakula

trojan rat sakula

Sakula family

sakula

Sakula payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\AdobeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\AdobeUpdate.exe" C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.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\MicroMedia\AdobeUpdate.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\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.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\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe

"C:\Users\Admin\AppData\Local\Temp\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe"

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

C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\5c7f8b81d0678a3d9621b004b296602dde72934fea4bc7544e4d22400e2ab37f.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.savmpet.com udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 229.198.34.52.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 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 52.34.198.229:80 www.savmpet.com tcp

Files

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

MD5 06c33f72d346aa479ff9ea9cb2e9c447
SHA1 60d9c7e6782d4ee32b1dc3e077993bd92158ea21
SHA256 d0cb69cd57015a43c07aeb1cdf8934d2c49d1c7372106d8ead193a2f7c493baa
SHA512 5a7b7ad137cfbf7c66410ef52a2da9b5b9b31c24a490812a836755f1bd7e103ff8ee1e11eae6943e094e7fb5c026d0440fe9a5ebb007d3b6ff81266e60027381