Malware Analysis Report

2024-09-22 15:22

Sample ID 240601-tzkbbshc67
Target 2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac
SHA256 2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac
Tags
gh0strat purplefox rat rootkit trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac

Threat Level: Known bad

The file 2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac was found to be: Known bad.

Malicious Activity Summary

gh0strat purplefox rat rootkit trojan upx

Gh0strat

Gh0st RAT payload

Detect PurpleFox Rootkit

PurpleFox

Drops file in Drivers directory

Checks computer location settings

Deletes itself

Executes dropped EXE

Loads dropped DLL

UPX packed file

Unsigned PE

Enumerates physical storage devices

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-01 16:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 16:29

Reported

2024-06-01 16:32

Platform

win7-20240508-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe"

Signatures

Detect PurpleFox Rootkit

rootkit
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
N/A N/A N/A N/A
N/A N/A N/A N/A

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
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

Gh0strat

rat gh0strat

PurpleFox

rootkit trojan purplefox

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\system32\drivers\QAssist.sys C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe 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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe N/A

UPX packed file

upx
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
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

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 WriteProcessMemory

Description Indicator Process Target
PID 3068 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe
PID 3068 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe
PID 3068 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe
PID 3068 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe
PID 3068 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe C:\Windows\SysWOW64\cmd.exe
PID 3068 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe C:\Windows\SysWOW64\cmd.exe
PID 3068 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe C:\Windows\SysWOW64\cmd.exe
PID 3068 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe C:\Windows\SysWOW64\cmd.exe
PID 2128 wrote to memory of 2352 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2128 wrote to memory of 2352 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2128 wrote to memory of 2352 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2128 wrote to memory of 2352 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe

"C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe"

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe

"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\2CE905~1.EXE > nul

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 myter.e2.luyouxia.net udp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp

Files

memory/3068-0-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/3068-3-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/3068-4-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/3068-2-0x0000000010000000-0x00000000101A9000-memory.dmp

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe

MD5 f42b3fff3efc76f31ffd6543d6ee9d2d
SHA1 37157943ffb3e55e9d93bdc414f0ff58df2aa3ae
SHA256 2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac
SHA512 80396687b45ffc8aad8c6a40be806d5ead0f2dcb8310cc59dcfc498686d1cd5789a9a9a91a373d4ecb93e67e7f94ab490fc16534760f0fb3cfc33b1afc63ef57

memory/3068-11-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/2424-12-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/2424-15-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/2424-16-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/2424-14-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/2424-22-0x0000000010000000-0x00000000101A9000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 16:29

Reported

2024-06-01 16:32

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe"

Signatures

Detect PurpleFox Rootkit

rootkit
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
N/A N/A N/A N/A

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
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

Gh0strat

rat gh0strat

PurpleFox

rootkit trojan purplefox

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\system32\drivers\QAssist.sys C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe N/A

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates physical storage devices

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe

"C:\Users\Admin\AppData\Local\Temp\2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac.exe"

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe

"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\sainbox.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\2CE905~1.EXE > nul

C:\Windows\SysWOW64\PING.EXE

ping -n 2 127.0.0.1

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 myter.e2.luyouxia.net udp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
CN 123.99.198.201:20158 myter.e2.luyouxia.net tcp
US 8.8.8.8:53 udp

Files

memory/1424-3-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/1424-4-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/1424-1-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/1424-2-0x0000000010000000-0x00000000101A9000-memory.dmp

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\sainbox.exe

MD5 f42b3fff3efc76f31ffd6543d6ee9d2d
SHA1 37157943ffb3e55e9d93bdc414f0ff58df2aa3ae
SHA256 2ce905195ccefec6ce2669c900e37c08b4d773ed0a7808686274295a20cf6eac
SHA512 80396687b45ffc8aad8c6a40be806d5ead0f2dcb8310cc59dcfc498686d1cd5789a9a9a91a373d4ecb93e67e7f94ab490fc16534760f0fb3cfc33b1afc63ef57

memory/3896-18-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/3896-19-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/3896-16-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/3896-21-0x0000000010000000-0x00000000101A9000-memory.dmp

memory/3896-28-0x0000000010000000-0x00000000101A9000-memory.dmp