Malware Analysis Report

2024-12-07 22:08

Sample ID 220708-zny81abag2
Target 40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6
SHA256 40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6
Tags
sakula persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6

Threat Level: Known bad

The file 40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6 was found to be: Known bad.

Malicious Activity Summary

sakula persistence rat trojan

Sakula

Sakula payload

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Deletes itself

Adds Run key to start application

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Runs ping.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-07-08 20:52

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-07-08 20:52

Reported

2022-07-09 01:40

Platform

win7-20220414-en

Max time kernel

132s

Max time network

179s

Command Line

"C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.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\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1996 wrote to memory of 904 N/A C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1996 wrote to memory of 904 N/A C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1996 wrote to memory of 904 N/A C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1996 wrote to memory of 904 N/A C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 1996 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe C:\Windows\SysWOW64\cmd.exe
PID 1996 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe C:\Windows\SysWOW64\cmd.exe
PID 1996 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe C:\Windows\SysWOW64\cmd.exe
PID 1996 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe C:\Windows\SysWOW64\cmd.exe
PID 1556 wrote to memory of 836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1556 wrote to memory of 836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1556 wrote to memory of 836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1556 wrote to memory of 836 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe

"C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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
TH 184.22.175.13:80 tcp

Files

memory/1996-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

memory/1996-55-0x0000000000400000-0x000000000041A000-memory.dmp

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

MD5 f4119f2bbb62a82b6c53dc0503088b94
SHA1 35bc443ed9db034f9379562a8748fbef4e521cd8
SHA256 4408523b34173d9bc411b8494977255e7571c02dd9bea79fdcb4880b6c9f6440
SHA512 a59eab55ad349a03603f0e98bb5f1251aeaaaaf01bead2aa42f6bdd044721e46fd707d4d84374890722eb7b6c6ed517956389177a468cd1437175b1adb966198

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

MD5 f4119f2bbb62a82b6c53dc0503088b94
SHA1 35bc443ed9db034f9379562a8748fbef4e521cd8
SHA256 4408523b34173d9bc411b8494977255e7571c02dd9bea79fdcb4880b6c9f6440
SHA512 a59eab55ad349a03603f0e98bb5f1251aeaaaaf01bead2aa42f6bdd044721e46fd707d4d84374890722eb7b6c6ed517956389177a468cd1437175b1adb966198

memory/904-58-0x0000000000000000-mapping.dmp

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

MD5 f4119f2bbb62a82b6c53dc0503088b94
SHA1 35bc443ed9db034f9379562a8748fbef4e521cd8
SHA256 4408523b34173d9bc411b8494977255e7571c02dd9bea79fdcb4880b6c9f6440
SHA512 a59eab55ad349a03603f0e98bb5f1251aeaaaaf01bead2aa42f6bdd044721e46fd707d4d84374890722eb7b6c6ed517956389177a468cd1437175b1adb966198

memory/1996-61-0x0000000000220000-0x000000000023A000-memory.dmp

memory/904-62-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1996-63-0x0000000000400000-0x000000000041A000-memory.dmp

memory/1996-64-0x0000000000220000-0x000000000023A000-memory.dmp

memory/1556-65-0x0000000000000000-mapping.dmp

memory/1996-66-0x0000000000400000-0x000000000041A000-memory.dmp

memory/836-67-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-07-08 20:52

Reported

2022-07-09 01:39

Platform

win10v2004-20220414-en

Max time kernel

136s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.exe

"C:\Users\Admin\AppData\Local\Temp\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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\40328f8b65ede383fca56ff8df6e103dc6c836fbd514ea4c7b7c2c0c358452b6.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
NL 20.190.160.67:443 tcp
US 8.8.8.8:53 citrix.vipreclod.com udp
NL 20.190.160.136:443 tcp
US 52.182.143.208:443 tcp
NL 104.110.191.140:80 tcp
NL 104.110.191.140:80 tcp
NL 87.248.202.1:80 tcp
US 8.8.8.8:53 151.122.125.40.in-addr.arpa udp
NL 20.190.160.71:443 tcp
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
TH 184.22.175.13:80 tcp

Files

memory/4884-130-0x0000000000400000-0x000000000041A000-memory.dmp

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

MD5 33b0f619182b79d40228414305b867d0
SHA1 1243f9aafd852bd3015b408bfdc27733d4dad3c2
SHA256 86ad63bb17d1085c90a281a95f3813330d9107f63328a19092368dfcdf64152c
SHA512 d943773d9985bebf035aa10e923072a57d531a126886d89f7c1340fb56e91d9f6e5f63e36f05a056d762c21bbcfa1436145b225800e9bee6ebc754eb8c209a0f

memory/2104-131-0x0000000000000000-mapping.dmp

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

MD5 33b0f619182b79d40228414305b867d0
SHA1 1243f9aafd852bd3015b408bfdc27733d4dad3c2
SHA256 86ad63bb17d1085c90a281a95f3813330d9107f63328a19092368dfcdf64152c
SHA512 d943773d9985bebf035aa10e923072a57d531a126886d89f7c1340fb56e91d9f6e5f63e36f05a056d762c21bbcfa1436145b225800e9bee6ebc754eb8c209a0f

memory/2104-134-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4884-135-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2104-136-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2744-137-0x0000000000000000-mapping.dmp

memory/4884-138-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4624-139-0x0000000000000000-mapping.dmp