Malware Analysis Report

2025-08-06 03:55

Sample ID 230828-nqmr7saf42
Target fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1
SHA256 fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1
Tags
gh0strat purplefox rat rootkit trojan upx
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

fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1

Threat Level: Known bad

The file fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1 was found to be: Known bad.

Malicious Activity Summary

gh0strat purplefox rat rootkit trojan upx

Detect PurpleFox Rootkit

Gh0st RAT payload

Gh0strat

PurpleFox

UPX packed file

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-28 11:36

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-28 11:36

Reported

2023-08-28 11:38

Platform

win7-20230712-en

Max time kernel

9s

Max time network

2s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.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

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

PurpleFox

rootkit trojan purplefox

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

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe

"C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe"

Network

N/A

Files

memory/1976-0-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/1976-3-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/1976-2-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/1976-4-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/1976-5-0x0000000010000000-0x00000000101AF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-28 11:36

Reported

2023-08-28 11:38

Platform

win10v2004-20230703-en

Max time kernel

4s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.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

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

Gh0strat

rat gh0strat

PurpleFox

rootkit trojan purplefox

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

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe

"C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\fb2211a7b62bb1eecf3af1cdb02172eb4f20b0ba19d87e9072b8c719b4739be1.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp

Files

memory/2476-0-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/2476-3-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/2476-4-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/2476-2-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/2476-5-0x0000000010000000-0x00000000101AF000-memory.dmp

memory/2476-8-0x0000000010000000-0x00000000101AF000-memory.dmp