Malware Analysis Report

2025-06-16 01:04

Sample ID 221123-y8gc9afb91
Target 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438
SHA256 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438
Tags
upx xtremerat persistence rat spyware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438

Threat Level: Known bad

The file 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438 was found to be: Known bad.

Malicious Activity Summary

upx xtremerat persistence rat spyware

Detect XtremeRAT payload

Xtremerat family

XtremeRAT

UPX packed file

Program crash

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-23 20:27

Signatures

Detect XtremeRAT payload

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

Xtremerat family

xtremerat

UPX packed file

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

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-23 20:27

Reported

2022-11-23 23:24

Platform

win7-20221111-en

Max time kernel

156s

Max time network

30s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe"

Signatures

Detect XtremeRAT 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

XtremeRAT

persistence spyware rat xtremerat

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

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1996 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Windows\SysWOW64\svchost.exe
PID 1996 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Windows\SysWOW64\svchost.exe
PID 1996 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Windows\SysWOW64\svchost.exe
PID 1996 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Windows\SysWOW64\svchost.exe
PID 1996 wrote to memory of 1964 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Windows\SysWOW64\svchost.exe
PID 1996 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1996 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1996 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1996 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1996 wrote to memory of 1000 N/A C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe C:\Program Files\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe

"C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Program Files\Internet Explorer\iexplore.exe

"C:\Program Files\Internet Explorer\iexplore.exe"

Network

N/A

Files

memory/1996-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

memory/1996-55-0x0000000010000000-0x0000000010049000-memory.dmp

memory/1964-56-0x0000000010000000-0x0000000010049000-memory.dmp

memory/1964-58-0x0000000000000000-mapping.dmp

memory/1996-60-0x0000000010000000-0x0000000010049000-memory.dmp

memory/1964-61-0x0000000010000000-0x0000000010049000-memory.dmp

memory/1964-62-0x0000000010000000-0x0000000010049000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-11-23 20:27

Reported

2022-11-23 23:26

Platform

win10v2004-20221111-en

Max time kernel

245s

Max time network

299s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe"

Signatures

Detect XtremeRAT 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

XtremeRAT

persistence spyware rat xtremerat

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe

"C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3588 -ip 3588

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3588 -ip 3588

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 480

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 488

Network

Country Destination Domain Proto
N/A 93.184.220.29:80 tcp
N/A 8.238.20.126:80 tcp
N/A 8.238.20.126:80 tcp
N/A 8.238.20.126:80 tcp
N/A 13.69.109.131:443 tcp
N/A 8.238.20.126:80 tcp
N/A 8.238.20.126:80 tcp
N/A 8.238.20.126:80 tcp
N/A 104.80.225.205:443 tcp
N/A 8.8.8.8:53 226.101.242.52.in-addr.arpa udp

Files

memory/4688-132-0x0000000010000000-0x0000000010049000-memory.dmp

memory/3588-133-0x0000000000000000-mapping.dmp

memory/4688-134-0x0000000010000000-0x0000000010049000-memory.dmp

memory/3588-135-0x0000000010000000-0x0000000010049000-memory.dmp