Malware Analysis Report

2025-03-15 06:38

Sample ID 240531-r5zbbscc97
Target A773DAA221EDE696FB246BF94A49A746.exe
SHA256 16bd5718170fa4234d31b8516ebe7e538268fa57b476c7799b595d3076120cdb
Tags
gh0strat persistence rat
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

16bd5718170fa4234d31b8516ebe7e538268fa57b476c7799b595d3076120cdb

Threat Level: Known bad

The file A773DAA221EDE696FB246BF94A49A746.exe was found to be: Known bad.

Malicious Activity Summary

gh0strat persistence rat

Gh0st RAT payload

Gh0strat family

Gh0strat

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 14:47

Signatures

Gh0st RAT payload

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

Gh0strat family

gh0strat

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 14:47

Reported

2024-05-31 14:49

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe"

Signatures

Gh0st RAT 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

Gh0strat

rat gh0strat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ball = "C:\\WINDOWS\\smss.exe" C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\WINDOWS\smss.exe C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A
File opened for modification C:\WINDOWS\smss.exe C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe

"C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
CN 47.120.59.37:6161 tcp
US 8.8.8.8:53 149.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 160.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 138.201.86.20.in-addr.arpa udp
CN 47.120.59.37:6161 tcp
US 8.8.8.8:53 11.227.111.52.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 94.65.42.20.in-addr.arpa udp

Files

memory/2332-0-0x0000000000400000-0x0000000000436000-memory.dmp

C:\Windows\Temp\zk.exe

MD5 a773daa221ede696fb246bf94a49a746
SHA1 7f65c073c7108ed9e2315bf2bd45b02e503b1610
SHA256 16bd5718170fa4234d31b8516ebe7e538268fa57b476c7799b595d3076120cdb
SHA512 9c95c26f6495c0fdf4a6415bdb5202a408597ed920e21682737f98749c85475b5315b505bd1f807db65c76aebfc81c0ffbd51466b2c18fbeb18ca8205639cf9d

memory/2332-6-0x0000000000400000-0x0000000000436000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 14:47

Reported

2024-05-31 14:49

Platform

win7-20240419-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe"

Signatures

Gh0st RAT 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

Gh0strat

rat gh0strat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ball = "C:\\WINDOWS\\smss.exe" C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\WINDOWS\smss.exe C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A
File opened for modification C:\WINDOWS\smss.exe C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe

"C:\Users\Admin\AppData\Local\Temp\A773DAA221EDE696FB246BF94A49A746.exe"

Network

Country Destination Domain Proto
CN 47.120.59.37:6161 tcp
CN 47.120.59.37:6161 tcp

Files

memory/1148-0-0x0000000000400000-0x0000000000436000-memory.dmp

C:\Windows\Temp\zk.exe

MD5 a773daa221ede696fb246bf94a49a746
SHA1 7f65c073c7108ed9e2315bf2bd45b02e503b1610
SHA256 16bd5718170fa4234d31b8516ebe7e538268fa57b476c7799b595d3076120cdb
SHA512 9c95c26f6495c0fdf4a6415bdb5202a408597ed920e21682737f98749c85475b5315b505bd1f807db65c76aebfc81c0ffbd51466b2c18fbeb18ca8205639cf9d

memory/1148-6-0x0000000000400000-0x0000000000436000-memory.dmp