Malware Analysis Report

2024-11-13 18:44

Sample ID 231012-bsvvdahg42
Target dfd1856323cba7485217cee5c5c8f48f_JC.exe
SHA256 e67eeb117157e80b07099997f130125100ff35cc44712e54f1842a26e89d5050
Tags
sakula persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e67eeb117157e80b07099997f130125100ff35cc44712e54f1842a26e89d5050

Threat Level: Known bad

The file dfd1856323cba7485217cee5c5c8f48f_JC.exe was found to be: Known bad.

Malicious Activity Summary

sakula persistence rat trojan

Sakula

Sakula payload

Sakula family

Checks computer location settings

Deletes itself

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-12 01:24

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: behavioral2

Detonation Overview

Submitted

2023-10-12 01:24

Reported

2023-10-13 01:25

Platform

win10v2004-20230915-en

Max time kernel

137s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.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\dfd1856323cba7485217cee5c5c8f48f_JC.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\dfd1856323cba7485217cee5c5c8f48f_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe

"C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.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\dfd1856323cba7485217cee5c5c8f48f_JC.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 www.savmpet.com udp
US 8.8.8.8:53 29.81.57.23.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 34.41.229.245:80 www.savmpet.com tcp
US 8.8.8.8:53 245.229.41.34.in-addr.arpa udp
US 34.41.229.245:80 www.savmpet.com tcp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp

Files

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

MD5 f0072e3667ca5a8bdac217c0823cd6a6
SHA1 0436ef83e94b7184269b6261062682efd5f14c4e
SHA256 8a65af1720fd06f52052fa9613a98170d824c649675d61fd53ba6f55871ff976
SHA512 3debca21653fb35eb27569068ce6a40a18ffbb371b1c77bd76a296da141c5623b07da2b5502d57f439bfa3bea8321267f68bb7f3c52c63200a95939b8f559912

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

MD5 f0072e3667ca5a8bdac217c0823cd6a6
SHA1 0436ef83e94b7184269b6261062682efd5f14c4e
SHA256 8a65af1720fd06f52052fa9613a98170d824c649675d61fd53ba6f55871ff976
SHA512 3debca21653fb35eb27569068ce6a40a18ffbb371b1c77bd76a296da141c5623b07da2b5502d57f439bfa3bea8321267f68bb7f3c52c63200a95939b8f559912

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-12 01:24

Reported

2023-10-13 01:25

Platform

win7-20230831-en

Max time kernel

164s

Max time network

176s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.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
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\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\dfd1856323cba7485217cee5c5c8f48f_JC.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\dfd1856323cba7485217cee5c5c8f48f_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2464 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2464 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2464 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2464 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2464 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2464 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2464 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2464 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Windows\SysWOW64\cmd.exe
PID 2464 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Windows\SysWOW64\cmd.exe
PID 2464 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Windows\SysWOW64\cmd.exe
PID 2464 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe C:\Windows\SysWOW64\cmd.exe
PID 2528 wrote to memory of 2696 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2528 wrote to memory of 2696 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2528 wrote to memory of 2696 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2528 wrote to memory of 2696 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe

"C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.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\dfd1856323cba7485217cee5c5c8f48f_JC.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 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp

Files

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

MD5 27af41ef15ea4a9da66ba4b2c6d96d5b
SHA1 f46d23baa9016f920a4ddb8c7d8c008e36a0f6a5
SHA256 eff81e73c269ac8293d0823bac08874af1e1fcc3eb5b3e6301741ccf96891528
SHA512 20b58b82b190b3c4c754794ff0a5d5dc04b85410367abcf0ee912bac17de9c6ddc2da025e52d7b9eca77f06d8b760f573d34cb143b6478cc35c085e3c123945b

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

MD5 27af41ef15ea4a9da66ba4b2c6d96d5b
SHA1 f46d23baa9016f920a4ddb8c7d8c008e36a0f6a5
SHA256 eff81e73c269ac8293d0823bac08874af1e1fcc3eb5b3e6301741ccf96891528
SHA512 20b58b82b190b3c4c754794ff0a5d5dc04b85410367abcf0ee912bac17de9c6ddc2da025e52d7b9eca77f06d8b760f573d34cb143b6478cc35c085e3c123945b

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

MD5 27af41ef15ea4a9da66ba4b2c6d96d5b
SHA1 f46d23baa9016f920a4ddb8c7d8c008e36a0f6a5
SHA256 eff81e73c269ac8293d0823bac08874af1e1fcc3eb5b3e6301741ccf96891528
SHA512 20b58b82b190b3c4c754794ff0a5d5dc04b85410367abcf0ee912bac17de9c6ddc2da025e52d7b9eca77f06d8b760f573d34cb143b6478cc35c085e3c123945b

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

MD5 27af41ef15ea4a9da66ba4b2c6d96d5b
SHA1 f46d23baa9016f920a4ddb8c7d8c008e36a0f6a5
SHA256 eff81e73c269ac8293d0823bac08874af1e1fcc3eb5b3e6301741ccf96891528
SHA512 20b58b82b190b3c4c754794ff0a5d5dc04b85410367abcf0ee912bac17de9c6ddc2da025e52d7b9eca77f06d8b760f573d34cb143b6478cc35c085e3c123945b

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

MD5 27af41ef15ea4a9da66ba4b2c6d96d5b
SHA1 f46d23baa9016f920a4ddb8c7d8c008e36a0f6a5
SHA256 eff81e73c269ac8293d0823bac08874af1e1fcc3eb5b3e6301741ccf96891528
SHA512 20b58b82b190b3c4c754794ff0a5d5dc04b85410367abcf0ee912bac17de9c6ddc2da025e52d7b9eca77f06d8b760f573d34cb143b6478cc35c085e3c123945b

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

MD5 27af41ef15ea4a9da66ba4b2c6d96d5b
SHA1 f46d23baa9016f920a4ddb8c7d8c008e36a0f6a5
SHA256 eff81e73c269ac8293d0823bac08874af1e1fcc3eb5b3e6301741ccf96891528
SHA512 20b58b82b190b3c4c754794ff0a5d5dc04b85410367abcf0ee912bac17de9c6ddc2da025e52d7b9eca77f06d8b760f573d34cb143b6478cc35c085e3c123945b