Malware Analysis Report

2024-12-07 21:20

Sample ID 240205-lqsbksfafn
Target 91aa5d934b531c5332e1ffecc778f52c
SHA256 5de1b185af3cba8d103622352add97ef0c370af46880a75b22ab9932700c0c05
Tags
xtremerat persistence rat spyware
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

5de1b185af3cba8d103622352add97ef0c370af46880a75b22ab9932700c0c05

Threat Level: Known bad

The file 91aa5d934b531c5332e1ffecc778f52c was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware

Xtremerat family

XtremeRAT

Detect XtremeRAT payload

Modifies Installed Components in the registry

Adds Run key to start application

Drops file in System32 directory

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious behavior: SetClipboardViewer

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-05 09:44

Signatures

Detect XtremeRAT payload

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

Xtremerat family

xtremerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-05 09:44

Reported

2024-02-05 09:47

Platform

win7-20231215-en

Max time kernel

150s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.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

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\{5460C4DF-B266-909E-CB58-E32B79832EB2} C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\Microsoft\\ScriptX.exe" C:\Windows\SysWOW64\svchost.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\Microsoft\\ScriptX.exe restart" C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Windows\\system32\\Microsoft\\ScriptX.exe" C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\Microsoft\\ScriptX.exe" C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Windows\\system32\\Microsoft\\ScriptX.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\Microsoft\\ScriptX.exe" C:\Windows\SysWOW64\svchost.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\Microsoft\ScriptX.exe C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe N/A
File opened for modification C:\Windows\SysWOW64\Microsoft\ScriptX.exe C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe N/A

Enumerates physical storage devices

Suspicious behavior: SetClipboardViewer

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe

"C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 samia-a1.no-ip.org udp

Files

memory/816-0-0x0000000010000000-0x000000001004A000-memory.dmp

memory/816-2-0x0000000010000000-0x000000001004A000-memory.dmp

C:\Windows\SysWOW64\Microsoft\ScriptX.exe

MD5 91aa5d934b531c5332e1ffecc778f52c
SHA1 4fa4f51b7b3bd42fbe2e748cc84a0a8f0faf34f8
SHA256 5de1b185af3cba8d103622352add97ef0c370af46880a75b22ab9932700c0c05
SHA512 d3919bdfb4a906e3dd6a7f934dfc0f510324a7da3e88ae167fba30bf049484745083677fe03425d4d05376293ab83f4501ae6073f32e22586e71588cd67fa805

memory/3028-5-0x0000000010000000-0x000000001004A000-memory.dmp

memory/816-7-0x0000000010000000-0x000000001004A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-05 09:44

Reported

2024-02-05 09:47

Platform

win10v2004-20231215-en

Max time kernel

92s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe"

Signatures

Detect XtremeRAT payload

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

XtremeRAT

persistence spyware rat xtremerat

Processes

C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe

"C:\Users\Admin\AppData\Local\Temp\91aa5d934b531c5332e1ffecc778f52c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 824 -ip 824

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 824 -s 508

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp

Files

memory/824-0-0x0000000010000000-0x000000001004A000-memory.dmp