Malware Analysis Report

2024-11-13 18:44

Sample ID 231013-yffw1sgc48
Target NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe
SHA256 389f4f8705e6017d42e3f637e5609c5d68fb1322ff836d354f99df9dbd374b8f
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

389f4f8705e6017d42e3f637e5609c5d68fb1322ff836d354f99df9dbd374b8f

Threat Level: Known bad

The file NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe was found to be: Known bad.

Malicious Activity Summary

sakula persistence rat trojan

Sakula

Sakula payload

Deletes itself

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Runs ping.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-13 19:43

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-13 19:43

Reported

2023-10-13 19:57

Platform

win7-20230831-en

Max time kernel

143s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.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

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.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.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.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2372 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2372 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2372 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2372 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
PID 2372 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe C:\Windows\SysWOW64\cmd.exe
PID 2372 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe C:\Windows\SysWOW64\cmd.exe
PID 2372 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe C:\Windows\SysWOW64\cmd.exe
PID 2372 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe C:\Windows\SysWOW64\cmd.exe
PID 2580 wrote to memory of 2480 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2580 wrote to memory of 2480 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2580 wrote to memory of 2480 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2580 wrote to memory of 2480 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.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.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.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/2372-0-0x0000000000400000-0x000000000041A000-memory.dmp

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

MD5 3728d958b963f2b1c8c3c113b9755c70
SHA1 86dff376ea2d365133acdd4992bb89f125e4560b
SHA256 0fda813d80b87e36bb5624d3fb867bdd841f41d76af8f512e1bb93111802e1b3
SHA512 d95f284d5d5c8925fe2075b7706d7ac5264c6ce4074346e796b6d07eaf311b120908992352479c5f4af299185940a196cfacc2acff470ad165f7a391403252ef

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

MD5 3728d958b963f2b1c8c3c113b9755c70
SHA1 86dff376ea2d365133acdd4992bb89f125e4560b
SHA256 0fda813d80b87e36bb5624d3fb867bdd841f41d76af8f512e1bb93111802e1b3
SHA512 d95f284d5d5c8925fe2075b7706d7ac5264c6ce4074346e796b6d07eaf311b120908992352479c5f4af299185940a196cfacc2acff470ad165f7a391403252ef

memory/2112-10-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2372-8-0x0000000000220000-0x000000000023A000-memory.dmp

memory/2372-11-0x0000000000220000-0x000000000023A000-memory.dmp

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

MD5 3728d958b963f2b1c8c3c113b9755c70
SHA1 86dff376ea2d365133acdd4992bb89f125e4560b
SHA256 0fda813d80b87e36bb5624d3fb867bdd841f41d76af8f512e1bb93111802e1b3
SHA512 d95f284d5d5c8925fe2075b7706d7ac5264c6ce4074346e796b6d07eaf311b120908992352479c5f4af299185940a196cfacc2acff470ad165f7a391403252ef

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

MD5 3728d958b963f2b1c8c3c113b9755c70
SHA1 86dff376ea2d365133acdd4992bb89f125e4560b
SHA256 0fda813d80b87e36bb5624d3fb867bdd841f41d76af8f512e1bb93111802e1b3
SHA512 d95f284d5d5c8925fe2075b7706d7ac5264c6ce4074346e796b6d07eaf311b120908992352479c5f4af299185940a196cfacc2acff470ad165f7a391403252ef

memory/2372-12-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2372-13-0x0000000000220000-0x000000000023A000-memory.dmp

memory/2112-14-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2372-21-0x0000000000400000-0x000000000041A000-memory.dmp

memory/2112-24-0x0000000000400000-0x000000000041A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-13 19:43

Reported

2023-10-13 19:57

Platform

win10v2004-20230915-en

Max time kernel

157s

Max time network

173s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.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

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\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.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.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.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.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.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.NEASe98b69ff231cf10e885c2421bd3c5fc5exe.exe"

C:\Windows\SysWOW64\PING.EXE

ping 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 29.81.57.23.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 186.87.200.23.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
US 8.8.8.8:53 146.78.124.51.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 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 citrix.vipreclod.com udp
TH 184.22.175.13:80 tcp
US 8.8.8.8:53 38.148.119.40.in-addr.arpa udp
TH 184.22.175.13:80 tcp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp

Files

memory/4824-0-0x0000000000400000-0x000000000041A000-memory.dmp

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

MD5 ea7ee4d712a7006da0d81e01e1cf936f
SHA1 6a54b34736bb3aaca3a9c79115db7c2398eb1d80
SHA256 e38e757c49214ff3ba1a246e849ab6e463b5d446c01197444182956cd0ffe8c8
SHA512 d27fa8d39b81432b9a9990ee7dc92211998f93118e7d6c220fb39d8e02bfee703a20caa3e9cdde7997bac10f4880ee9d01095a30be68969458775b3552abb1c4

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

MD5 ea7ee4d712a7006da0d81e01e1cf936f
SHA1 6a54b34736bb3aaca3a9c79115db7c2398eb1d80
SHA256 e38e757c49214ff3ba1a246e849ab6e463b5d446c01197444182956cd0ffe8c8
SHA512 d27fa8d39b81432b9a9990ee7dc92211998f93118e7d6c220fb39d8e02bfee703a20caa3e9cdde7997bac10f4880ee9d01095a30be68969458775b3552abb1c4

memory/636-4-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4824-6-0x0000000000400000-0x000000000041A000-memory.dmp

memory/636-8-0x0000000000400000-0x000000000041A000-memory.dmp

memory/4824-13-0x0000000000400000-0x000000000041A000-memory.dmp

memory/636-18-0x0000000000400000-0x000000000041A000-memory.dmp