Malware Analysis Report

2024-11-13 18:44

Sample ID 231014-xvdvjaha58
Target NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe
SHA256 ddf994a0055d6088f9cade2c841d4f903801e14f50a6896ab5d4bf4550f194d0
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

ddf994a0055d6088f9cade2c841d4f903801e14f50a6896ab5d4bf4550f194d0

Threat Level: Known bad

The file NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe was found to be: Known bad.

Malicious Activity Summary

sakula persistence rat trojan

Sakula family

Sakula

Sakula payload

Loads dropped DLL

Checks computer location settings

Deletes itself

Executes dropped EXE

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Runs ping.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-14 19:10

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

2023-10-14 19:10

Reported

2023-10-15 07:07

Platform

win7-20230831-en

Max time kernel

136s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe"

Signatures

Sakula

trojan rat sakula

Sakula payload

Description Indicator Process Target
N/A N/A N/A N/A
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N/A N/A N/A N/A
N/A N/A N/A N/A
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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\MediaCenter.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\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.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.b6a6bd2f62e9ee0b49d6d7b899278e20.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 956 wrote to memory of 2912 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 956 wrote to memory of 2912 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 956 wrote to memory of 2912 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 956 wrote to memory of 2912 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 956 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe C:\Windows\SysWOW64\cmd.exe
PID 956 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe C:\Windows\SysWOW64\cmd.exe
PID 956 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe C:\Windows\SysWOW64\cmd.exe
PID 956 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe C:\Windows\SysWOW64\cmd.exe
PID 2464 wrote to memory of 2612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2464 wrote to memory of 2612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2464 wrote to memory of 2612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2464 wrote to memory of 2612 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.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\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.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
TH 184.22.175.13:80 tcp

Files

memory/956-0-0x0000000000400000-0x000000000041B000-memory.dmp

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

MD5 393a847d670512be27d946d612fe401b
SHA1 087947687e7d9e17591ecaecda37318b587f0f3c
SHA256 95ae5d7471d13f7305ef8d81d9969a34847b5f153c862d31a006db19c79941bc
SHA512 161e6fb5db0b28737cde3e6f190a11540bc529d3c6e108ceac6b04fd3b4b43e86e3857d08e9c225af42b79e771acc813fb5a0007e917f3e9cb2074b92829fb67

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

MD5 393a847d670512be27d946d612fe401b
SHA1 087947687e7d9e17591ecaecda37318b587f0f3c
SHA256 95ae5d7471d13f7305ef8d81d9969a34847b5f153c862d31a006db19c79941bc
SHA512 161e6fb5db0b28737cde3e6f190a11540bc529d3c6e108ceac6b04fd3b4b43e86e3857d08e9c225af42b79e771acc813fb5a0007e917f3e9cb2074b92829fb67

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

MD5 393a847d670512be27d946d612fe401b
SHA1 087947687e7d9e17591ecaecda37318b587f0f3c
SHA256 95ae5d7471d13f7305ef8d81d9969a34847b5f153c862d31a006db19c79941bc
SHA512 161e6fb5db0b28737cde3e6f190a11540bc529d3c6e108ceac6b04fd3b4b43e86e3857d08e9c225af42b79e771acc813fb5a0007e917f3e9cb2074b92829fb67

memory/956-8-0x00000000001B0000-0x00000000001CB000-memory.dmp

memory/2912-10-0x0000000000400000-0x000000000041B000-memory.dmp

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

MD5 393a847d670512be27d946d612fe401b
SHA1 087947687e7d9e17591ecaecda37318b587f0f3c
SHA256 95ae5d7471d13f7305ef8d81d9969a34847b5f153c862d31a006db19c79941bc
SHA512 161e6fb5db0b28737cde3e6f190a11540bc529d3c6e108ceac6b04fd3b4b43e86e3857d08e9c225af42b79e771acc813fb5a0007e917f3e9cb2074b92829fb67

memory/956-11-0x0000000000400000-0x000000000041B000-memory.dmp

memory/956-12-0x00000000001B0000-0x00000000001CB000-memory.dmp

memory/956-13-0x00000000001B0000-0x00000000001CB000-memory.dmp

memory/2912-14-0x0000000000400000-0x000000000041B000-memory.dmp

memory/956-15-0x0000000000400000-0x000000000041B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-14 19:10

Reported

2023-10-15 07:08

Platform

win10v2004-20230915-en

Max time kernel

145s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.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
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N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.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\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.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.b6a6bd2f62e9ee0b49d6d7b899278e20.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.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\NEAS.b6a6bd2f62e9ee0b49d6d7b899278e20.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 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 121.208.253.8.in-addr.arpa udp
US 8.8.8.8:53 54.120.234.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
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
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp

Files

memory/116-0-0x0000000000400000-0x000000000041B000-memory.dmp

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

MD5 e335a51eb0e85851f50634b48d3ac839
SHA1 d650ffd9fb4a15ef3c2942a6309cf7bdfa09ea0d
SHA256 c3df596c4be77648f10b63850ac14635c9ed1978175b1851cf2821c28fcd71de
SHA512 2b2b20a269d21a0647ebbdc337cde441b302c44e98525f16b2fd687a60c13f464dff5882c45c957f31e2756bf3d86df5d539bfdba5f9de7dd9a8ad9f572f8ff4

memory/2148-5-0x0000000000400000-0x000000000041B000-memory.dmp

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

MD5 e335a51eb0e85851f50634b48d3ac839
SHA1 d650ffd9fb4a15ef3c2942a6309cf7bdfa09ea0d
SHA256 c3df596c4be77648f10b63850ac14635c9ed1978175b1851cf2821c28fcd71de
SHA512 2b2b20a269d21a0647ebbdc337cde441b302c44e98525f16b2fd687a60c13f464dff5882c45c957f31e2756bf3d86df5d539bfdba5f9de7dd9a8ad9f572f8ff4

memory/116-6-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2148-7-0x0000000000400000-0x000000000041B000-memory.dmp

memory/116-8-0x0000000000400000-0x000000000041B000-memory.dmp