Malware Analysis Report

2025-01-02 02:07

Sample ID 240129-yest7aahgp
Target 80b30a2fa4ea5d245df66a954bb41bec
SHA256 8ea22f84611c5391cef5fc138310569b8c30e23d6c09d5613b2c2d84b28bfbcb
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

8ea22f84611c5391cef5fc138310569b8c30e23d6c09d5613b2c2d84b28bfbcb

Threat Level: Known bad

The file 80b30a2fa4ea5d245df66a954bb41bec was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware

Detect XtremeRAT payload

XtremeRAT

Xtremerat family

Modifies Installed Components in the registry

Adds Run key to start application

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-29 19:42

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: behavioral2

Detonation Overview

Submitted

2024-01-29 19:42

Reported

2024-01-29 19:45

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.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

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\\InstallDir\\Server.exe restart" 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\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
File created C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
File opened for modification C:\Windows\InstallDir\ C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1044 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 1044 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 1044 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 1044 wrote to memory of 1100 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 1044 wrote to memory of 3160 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
PID 1044 wrote to memory of 3160 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
PID 1044 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe
PID 1044 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe
PID 1044 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe
PID 1044 wrote to memory of 4868 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe

"C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.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\explorer.exe

explorer.exe

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 205.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 16.234.44.23.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
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 134.71.91.104.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 8.8.8.8:53 201.178.17.96.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 14.227.111.52.in-addr.arpa udp
N/A 127.0.0.1:81 tcp
US 8.8.8.8:53 177.178.17.96.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
N/A 127.0.0.1:81 tcp

Files

memory/1100-6-0x0000000000C80000-0x0000000000C93000-memory.dmp

C:\Windows\InstallDir\Server.exe

MD5 80b30a2fa4ea5d245df66a954bb41bec
SHA1 04a84853e305914e88abf98c9928a0017122117e
SHA256 8ea22f84611c5391cef5fc138310569b8c30e23d6c09d5613b2c2d84b28bfbcb
SHA512 241e0d999ee4498181d1a214c96fabc1a33696ba5724c2580fe48f2c85ff1674ffd9f654c3ca25183998a2253ef924a93993e7e6520c182d403fa2d3988f82f9

memory/4868-8-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/1044-9-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/4868-11-0x0000000000C80000-0x0000000000C93000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-29 19:42

Reported

2024-01-29 19:44

Platform

win7-20231215-en

Max time kernel

146s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.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

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:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
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\\InstallDir\\Server.exe restart" C:\Windows\SysWOW64\svchost.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
File opened for modification C:\Windows\InstallDir\ C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A
File opened for modification C:\Windows\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe N/A

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2060 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 2060 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 2060 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 2060 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 2060 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\svchost.exe
PID 2060 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2060 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2060 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2060 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2060 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe
PID 2060 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe
PID 2060 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe
PID 2060 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe
PID 2060 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe C:\Windows\SysWOW64\explorer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe

"C:\Users\Admin\AppData\Local\Temp\80b30a2fa4ea5d245df66a954bb41bec.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

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

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

C:\Windows\SysWOW64\explorer.exe

explorer.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/3056-6-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/3056-8-0x0000000000C80000-0x0000000000C93000-memory.dmp

C:\Windows\InstallDir\Server.exe

MD5 80b30a2fa4ea5d245df66a954bb41bec
SHA1 04a84853e305914e88abf98c9928a0017122117e
SHA256 8ea22f84611c5391cef5fc138310569b8c30e23d6c09d5613b2c2d84b28bfbcb
SHA512 241e0d999ee4498181d1a214c96fabc1a33696ba5724c2580fe48f2c85ff1674ffd9f654c3ca25183998a2253ef924a93993e7e6520c182d403fa2d3988f82f9

memory/2836-12-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2060-13-0x0000000000C80000-0x0000000000C93000-memory.dmp

memory/2836-15-0x0000000000C80000-0x0000000000C93000-memory.dmp