Malware Analysis Report

2024-11-13 18:37

Sample ID 240226-23av3aaf27
Target a79476d5858ad853bdc29614261fb19f
SHA256 14b0127bb7f2f4054b43af380118b2e6cf5c50ff256f755a843fa62eb0eff0aa
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

14b0127bb7f2f4054b43af380118b2e6cf5c50ff256f755a843fa62eb0eff0aa

Threat Level: Known bad

The file a79476d5858ad853bdc29614261fb19f 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

Suspicious use of SetThreadContext

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-26 23:05

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-26 23:05

Reported

2024-02-26 23:08

Platform

win7-20240221-en

Max time kernel

147s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.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
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

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P} C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P}\StubPath = "C:\\Windows\\system32\\microsoft\\xtreme.exe restart" C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P} C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P}\StubPath = "C:\\Windows\\system32\\microsoft\\xtreme.exe restart" C:\Windows\SysWOW64\svchost.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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\microsoft\xtreme.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe N/A
File created C:\Windows\SysWOW64\microsoft\xtreme.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2276 set thread context of 2340 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2276 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 2276 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 2276 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 2276 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 2276 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 2276 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 2340 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2340 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2340 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2340 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2340 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2340 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe
PID 2340 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe
PID 2340 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe
PID 2340 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe
PID 2340 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe

"C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe"

C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe

"C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\notepad.exe

notepad.exe

Network

Country Destination Domain Proto
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp

Files

memory/2276-0-0x0000000000220000-0x000000000022D000-memory.dmp

memory/2276-1-0x0000000000220000-0x000000000022D000-memory.dmp

memory/2340-2-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2340-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2276-7-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2340-6-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2340-5-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2340-8-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2340-9-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2536-15-0x0000000000C80000-0x0000000000C93000-memory.dmp

C:\Windows\SysWOW64\microsoft\xtreme.exe

MD5 a79476d5858ad853bdc29614261fb19f
SHA1 f667e64ec8af2bae6dd5309bc31cc991fc9c1f9a
SHA256 14b0127bb7f2f4054b43af380118b2e6cf5c50ff256f755a843fa62eb0eff0aa
SHA512 9cdbe52289a75b79ac785e7e0c1666d9a760b29cf28a7103ebe00379bb54c4743afd6aaf6118da1236006b61a0b4d97197e67b60ed9b56fb94324ca28932c148

memory/2604-19-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2340-20-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2604-22-0x0000000000C80000-0x0000000000C93000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-26 23:05

Reported

2024-02-26 23:08

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.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
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

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P} C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P}\StubPath = "C:\\Windows\\system32\\microsoft\\xtreme.exe restart" C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe N/A
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P} C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5KO86025-TR58-EKNU-45Y8-Y52X408MWO2P}\StubPath = "C:\\Windows\\system32\\microsoft\\xtreme.exe restart" C:\Windows\SysWOW64\svchost.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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\microsoft\xtreme.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe N/A
File created C:\Windows\SysWOW64\microsoft\xtreme.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 516 set thread context of 2392 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 516 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 516 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 516 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 516 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 516 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe
PID 2392 wrote to memory of 732 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2392 wrote to memory of 732 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2392 wrote to memory of 732 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2392 wrote to memory of 732 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\svchost.exe
PID 2392 wrote to memory of 3524 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe
PID 2392 wrote to memory of 3524 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe
PID 2392 wrote to memory of 3524 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe
PID 2392 wrote to memory of 3524 N/A C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe C:\Windows\SysWOW64\notepad.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe

"C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe"

C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe

"C:\Users\Admin\AppData\Local\Temp\a79476d5858ad853bdc29614261fb19f.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\notepad.exe

notepad.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 udp

Files

memory/516-1-0x00000000005D0000-0x00000000005DD000-memory.dmp

memory/516-0-0x00000000005D0000-0x00000000005DD000-memory.dmp

memory/2392-2-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2392-3-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/516-4-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2392-5-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2392-6-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/732-10-0x0000000000C80000-0x0000000000C93000-memory.dmp

C:\Windows\SysWOW64\microsoft\xtreme.exe

MD5 a79476d5858ad853bdc29614261fb19f
SHA1 f667e64ec8af2bae6dd5309bc31cc991fc9c1f9a
SHA256 14b0127bb7f2f4054b43af380118b2e6cf5c50ff256f755a843fa62eb0eff0aa
SHA512 9cdbe52289a75b79ac785e7e0c1666d9a760b29cf28a7103ebe00379bb54c4743afd6aaf6118da1236006b61a0b4d97197e67b60ed9b56fb94324ca28932c148

memory/3524-12-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2392-13-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/3524-15-0x0000000000C80000-0x0000000000C93000-memory.dmp