Malware Analysis Report

2024-11-13 18:44

Sample ID 231016-w7pxwsab2t
Target NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe
SHA256 7140dee86c66dbaf4f555f9c616b96dccd1cb6f112473a9210777a7818979c5a
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: 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

7140dee86c66dbaf4f555f9c616b96dccd1cb6f112473a9210777a7818979c5a

Threat Level: Known bad

The file NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe was found to be: Known bad.

Malicious Activity Summary

sakula persistence rat trojan

Sakula family

Sakula

Sakula payload

Checks computer location settings

Loads dropped DLL

Deletes itself

Executes dropped EXE

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Runs ping.exe

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-16 18:34

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

2023-10-16 18:33

Reported

2023-10-17 02:18

Platform

win7-20230831-en

Max time kernel

146s

Max time network

168s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2004 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
PID 2004 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Windows\SysWOW64\cmd.exe
PID 2004 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Windows\SysWOW64\cmd.exe
PID 2004 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Windows\SysWOW64\cmd.exe
PID 2004 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe C:\Windows\SysWOW64\cmd.exe
PID 2896 wrote to memory of 2652 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2896 wrote to memory of 2652 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2896 wrote to memory of 2652 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2896 wrote to memory of 2652 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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

Files

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

MD5 23b0bf8318b16da12c4808eddd6ce006
SHA1 18e3a6acb73b85bd39b91b853438d920d31c226a
SHA256 d572832be75f73bb05e3d48ece0c55daff19c469566c1d46a0673be5f8de9dff
SHA512 b75e49c519a34304ab7b2cbeffa529dda9103421554bc088d188003bf87347bee171ca495d4fba1f8899f6c0a51f40a59a4cdb3dbe684098ca09b863908ba1e1

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

MD5 23b0bf8318b16da12c4808eddd6ce006
SHA1 18e3a6acb73b85bd39b91b853438d920d31c226a
SHA256 d572832be75f73bb05e3d48ece0c55daff19c469566c1d46a0673be5f8de9dff
SHA512 b75e49c519a34304ab7b2cbeffa529dda9103421554bc088d188003bf87347bee171ca495d4fba1f8899f6c0a51f40a59a4cdb3dbe684098ca09b863908ba1e1

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

MD5 23b0bf8318b16da12c4808eddd6ce006
SHA1 18e3a6acb73b85bd39b91b853438d920d31c226a
SHA256 d572832be75f73bb05e3d48ece0c55daff19c469566c1d46a0673be5f8de9dff
SHA512 b75e49c519a34304ab7b2cbeffa529dda9103421554bc088d188003bf87347bee171ca495d4fba1f8899f6c0a51f40a59a4cdb3dbe684098ca09b863908ba1e1

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

MD5 23b0bf8318b16da12c4808eddd6ce006
SHA1 18e3a6acb73b85bd39b91b853438d920d31c226a
SHA256 d572832be75f73bb05e3d48ece0c55daff19c469566c1d46a0673be5f8de9dff
SHA512 b75e49c519a34304ab7b2cbeffa529dda9103421554bc088d188003bf87347bee171ca495d4fba1f8899f6c0a51f40a59a4cdb3dbe684098ca09b863908ba1e1

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

MD5 23b0bf8318b16da12c4808eddd6ce006
SHA1 18e3a6acb73b85bd39b91b853438d920d31c226a
SHA256 d572832be75f73bb05e3d48ece0c55daff19c469566c1d46a0673be5f8de9dff
SHA512 b75e49c519a34304ab7b2cbeffa529dda9103421554bc088d188003bf87347bee171ca495d4fba1f8899f6c0a51f40a59a4cdb3dbe684098ca09b863908ba1e1

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

MD5 23b0bf8318b16da12c4808eddd6ce006
SHA1 18e3a6acb73b85bd39b91b853438d920d31c226a
SHA256 d572832be75f73bb05e3d48ece0c55daff19c469566c1d46a0673be5f8de9dff
SHA512 b75e49c519a34304ab7b2cbeffa529dda9103421554bc088d188003bf87347bee171ca495d4fba1f8899f6c0a51f40a59a4cdb3dbe684098ca09b863908ba1e1

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-16 18:33

Reported

2023-10-17 02:20

Platform

win10v2004-20230915-en

Max time kernel

184s

Max time network

200s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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\NEAS.b6bf6da95e04ea9f27b588ce1ca2fdb0.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 www.savmpet.com 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 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 254.177.238.8.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 34.41.229.245:80 www.savmpet.com tcp
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 34.41.229.245:80 www.savmpet.com tcp
US 34.41.229.245:80 www.savmpet.com tcp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp
US 34.41.229.245:80 www.savmpet.com tcp
US 8.8.8.8:53 38.148.119.40.in-addr.arpa udp
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 72df54084bf85eff1e43b02d3a088cbb
SHA1 b6f8a639d36561b00a949a33cda2aee77e8f2b62
SHA256 aef571988a92f9965be31219faf3da55ec7ec5135c937282dfe04628a68aeb68
SHA512 63a0388330d7bcbbafcbbed26d38188437a1b927c4d01e9e1a8e136323eaa611d88c0da3b9cf66c1bef243fe1fecfdf3b235b2b1aacb3c7d73f6f6d805519625

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

MD5 72df54084bf85eff1e43b02d3a088cbb
SHA1 b6f8a639d36561b00a949a33cda2aee77e8f2b62
SHA256 aef571988a92f9965be31219faf3da55ec7ec5135c937282dfe04628a68aeb68
SHA512 63a0388330d7bcbbafcbbed26d38188437a1b927c4d01e9e1a8e136323eaa611d88c0da3b9cf66c1bef243fe1fecfdf3b235b2b1aacb3c7d73f6f6d805519625