Malware Analysis Report

2024-12-07 22:05

Sample ID 241120-ewcpra1glq
Target b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe
SHA256 b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5
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

b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5

Threat Level: Known bad

The file b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe was found to be: Known bad.

Malicious Activity Summary

sakula discovery persistence rat trojan

Sakula payload

Sakula

Sakula family

Deletes itself

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

System Location Discovery: System Language Discovery

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-20 04:17

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

2024-11-20 04:17

Reported

2024-11-20 04:19

Platform

win7-20241010-en

Max time kernel

95s

Max time network

100s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.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\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.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\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe N/A

System Network Configuration Discovery: Internet Connection Discovery

discovery
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A
N/A N/A C:\Windows\SysWOW64\cmd.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\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2004 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Windows\SysWOW64\cmd.exe
PID 2004 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Windows\SysWOW64\cmd.exe
PID 2004 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Windows\SysWOW64\cmd.exe
PID 2004 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe C:\Windows\SysWOW64\cmd.exe
PID 2780 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2780 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2780 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2780 wrote to memory of 2824 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe

"C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.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\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.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

Files

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

MD5 60e2bb9cce67d659733623586dae503f
SHA1 a4e0e84e0c1c544ffea65aaec11160cb118b5698
SHA256 469deb9b2d196c46693ce9e48aea0357cce67e5d7e3396aeb45a0f03425da6fb
SHA512 edd1e533c19f9ec02badf594f34633e0c7669151779efce8c2b26cf3d8731086deff18df3edb64cc426badc3dec7830405d2f7108ee4d03d692218c1699a0478

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-20 04:17

Reported

2024-11-20 04:19

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.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\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.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:\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\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.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\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe

"C:\Users\Admin\AppData\Local\Temp\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.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\b85d0b465dca98653a4c5faddc4d77ab34f702213ab16597b3586595b737cbf5.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
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 8.8.8.8:53 22.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 229.198.34.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 52.34.198.229:80 www.savmpet.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.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 8.8.8.8:53 11.227.111.52.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 efb269fda7088badf44ef0dd9e70c134
SHA1 5a4af6a5513dbee9a3c3ecf49977acc4dce8479b
SHA256 9e6ae5f9fcc07097f418fb2d60bcbd6993523ebe906850586a51fb1acc65a2b9
SHA512 6c010a415f3b744b654f4111535ed4f6c89c9881dc5eb2064dc8401f93b77bc9820974aa91550ec31e1a374c0bcd9780c05b8b1de2d9dc3413605f52a74855bf