Malware Analysis Report

2025-01-02 02:15

Sample ID 240128-ca7xnaghh3
Target 7bd819e07f179d3f264d22ff7f6a44d5
SHA256 ea03ea99faa0e8318947128b1a6918585613b6e418820323db993bc787b0590d
Tags
xtremerat persistence rat spyware 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

ea03ea99faa0e8318947128b1a6918585613b6e418820323db993bc787b0590d

Threat Level: Known bad

The file 7bd819e07f179d3f264d22ff7f6a44d5 was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware upx

Detect XtremeRAT payload

XtremeRAT

Modifies Installed Components in the registry

UPX packed file

Adds Run key to start application

Suspicious use of SetThreadContext

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

Program crash

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-28 01:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-28 01:53

Reported

2024-01-28 01:56

Platform

win7-20231215-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe"

Signatures

Detect XtremeRAT payload

Description Indicator Process Target
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XtremeRAT

persistence spyware rat xtremerat

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{610077HK-22RW-B1R3-YHO8-4X73A17Q3FH5} C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{610077HK-22RW-B1R3-YHO8-4X73A17Q3FH5}\StubPath = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe restart" C:\Windows\SysWOW64\svchost.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{610077HK-22RW-B1R3-YHO8-4X73A17Q3FH5} C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{610077HK-22RW-B1R3-YHO8-4X73A17Q3FH5}\StubPath = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A

UPX packed file

upx
Description Indicator Process Target
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Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\GoogleUpdate = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\SystemRestore Profile = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\rHDaud Driver = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\GoogleUpdate = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\SystemRestore Profile = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1716 set thread context of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\SystemDrivers\rHDaudDriv.exe C:\Windows\SysWOW64\svchost.exe N/A
File created C:\Windows\SystemDrivers\rHDaudDriv.exe C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SystemDrivers\ C:\Windows\SysWOW64\svchost.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1716 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 1716 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 1716 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 1716 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 1716 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 1716 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 1716 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 1716 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2156 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2384 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2384 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2384 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2384 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2156 wrote to memory of 2384 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe

"C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe"

C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe

"C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\svchost.exe

svchost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 explosive.zapto.org udp

Files

memory/2156-0-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2156-1-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2156-2-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2156-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2156-5-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2156-8-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2156-7-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2156-9-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2872-12-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2384-15-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2384-20-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2156-16-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2384-21-0x0000000010000000-0x000000001004D000-memory.dmp

C:\Windows\SystemDrivers\rHDaudDriv.exe

MD5 7bd819e07f179d3f264d22ff7f6a44d5
SHA1 3f21e20ab76637efcfb1cd66cd24fed2b736861a
SHA256 ea03ea99faa0e8318947128b1a6918585613b6e418820323db993bc787b0590d
SHA512 2cff9b4d7af480ed540b40a2a48e095f03a286260d1bebbfae3df214ca2786e64dfbcf9b3199ce613aec52d6a8c99f4dceda33d9c5e3a074539d919af64e89ee

memory/2872-23-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2384-24-0x0000000010000000-0x000000001004D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-28 01:53

Reported

2024-01-28 01:56

Platform

win10v2004-20231215-en

Max time kernel

139s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe"

Signatures

Detect XtremeRAT payload

Description Indicator Process Target
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XtremeRAT

persistence spyware rat xtremerat

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{610077HK-22RW-B1R3-YHO8-4X73A17Q3FH5} C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{610077HK-22RW-B1R3-YHO8-4X73A17Q3FH5}\StubPath = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe restart" C:\Windows\SysWOW64\svchost.exe N/A

UPX packed file

upx
Description Indicator Process Target
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Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\GoogleUpdate = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemRestore Profile = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rHDaud Driver = "C:\\Windows\\SystemDrivers\\rHDaudDriv.exe" C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2760 set thread context of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\SystemDrivers\rHDaudDriv.exe C:\Windows\SysWOW64\svchost.exe N/A
File created C:\Windows\SystemDrivers\rHDaudDriv.exe C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SystemDrivers\ C:\Windows\SysWOW64\svchost.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2760 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2760 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2760 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2760 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2760 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2760 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2760 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2760 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe
PID 2312 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2312 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2312 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2312 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2312 wrote to memory of 3888 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2312 wrote to memory of 3888 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2312 wrote to memory of 3888 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe
PID 2312 wrote to memory of 3888 N/A C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe

"C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe"

C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe

"C:\Users\Admin\AppData\Local\Temp\7bd819e07f179d3f264d22ff7f6a44d5.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4372 -ip 4372

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3888 -ip 3888

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3888 -s 976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 480

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4372 -ip 4372

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 3888 -ip 3888

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 488

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3888 -s 988

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 28.73.42.20.in-addr.arpa udp

Files

memory/2312-0-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2312-2-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2312-3-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2312-4-0x0000000010000000-0x000000001004D000-memory.dmp

memory/4372-5-0x0000000010000000-0x000000001004D000-memory.dmp

memory/3888-6-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2312-7-0x0000000010000000-0x000000001004D000-memory.dmp

memory/3888-10-0x0000000010000000-0x000000001004D000-memory.dmp

memory/3888-11-0x0000000010000000-0x000000001004D000-memory.dmp

memory/4372-12-0x0000000010000000-0x000000001004D000-memory.dmp

memory/3888-13-0x0000000010000000-0x000000001004D000-memory.dmp