Malware Analysis Report

2025-08-10 22:51

Sample ID 240107-x2fmpsccfm
Target 495a3851285b29a43693cf5a93516608.exe
SHA256 d4dbb398a31310583837a0e3152c739f965ecf44c01e0aacd0249a85630d88be
Tags
xloader wufn loader rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

d4dbb398a31310583837a0e3152c739f965ecf44c01e0aacd0249a85630d88be

Threat Level: Known bad

The file 495a3851285b29a43693cf5a93516608.exe was found to be: Known bad.

Malicious Activity Summary

xloader wufn loader rat

Xloader

Xloader payload

CustAttr .NET packer

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-01-07 19:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-07 19:20

Reported

2024-01-07 19:23

Platform

win7-20231215-en

Max time kernel

117s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe"

Signatures

Xloader

loader xloader

CustAttr .NET packer

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

Xloader payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2084 set thread context of 2996 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe

"C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe"

C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe

"C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe"

Network

N/A

Files

memory/2084-0-0x0000000000D20000-0x0000000000E64000-memory.dmp

memory/2084-1-0x0000000074910000-0x0000000074FFE000-memory.dmp

memory/2084-2-0x0000000004E30000-0x0000000004E70000-memory.dmp

memory/2084-3-0x0000000000320000-0x0000000000332000-memory.dmp

memory/2084-4-0x0000000074910000-0x0000000074FFE000-memory.dmp

memory/2084-5-0x0000000004E30000-0x0000000004E70000-memory.dmp

memory/2084-6-0x0000000005670000-0x000000000570E000-memory.dmp

memory/2084-7-0x0000000000BA0000-0x0000000000BCE000-memory.dmp

memory/2996-8-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2996-9-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2996-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2996-12-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2084-13-0x0000000074910000-0x0000000074FFE000-memory.dmp

memory/2996-14-0x00000000008A0000-0x0000000000BA3000-memory.dmp

memory/2996-15-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-07 19:20

Reported

2024-01-07 19:23

Platform

win10v2004-20231215-en

Max time kernel

144s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe"

Signatures

Xloader

loader xloader

CustAttr .NET packer

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

Xloader payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 752 set thread context of 452 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 752 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe
PID 752 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe
PID 752 wrote to memory of 1784 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe
PID 752 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe
PID 752 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe
PID 752 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe
PID 752 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe
PID 752 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe
PID 752 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe

Processes

C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe

"C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe"

C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe

"C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe"

C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe

"C:\Users\Admin\AppData\Local\Temp\495a3851285b29a43693cf5a93516608.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 67.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 48.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp

Files

memory/752-2-0x0000000005CA0000-0x0000000006244000-memory.dmp

memory/752-3-0x00000000057D0000-0x0000000005862000-memory.dmp

memory/752-1-0x0000000000C70000-0x0000000000DB4000-memory.dmp

memory/752-0-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/752-4-0x00000000059B0000-0x00000000059C0000-memory.dmp

memory/752-6-0x0000000005A60000-0x0000000005AFC000-memory.dmp

memory/752-5-0x00000000057C0000-0x00000000057CA000-memory.dmp

memory/752-7-0x00000000059C0000-0x00000000059D2000-memory.dmp

memory/752-8-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/752-9-0x00000000059B0000-0x00000000059C0000-memory.dmp

memory/752-10-0x00000000067E0000-0x000000000687E000-memory.dmp

memory/752-11-0x0000000008C40000-0x0000000008C6E000-memory.dmp

memory/452-12-0x0000000000400000-0x0000000000428000-memory.dmp

memory/752-14-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/452-15-0x0000000001220000-0x000000000156A000-memory.dmp

memory/452-16-0x0000000001220000-0x000000000156A000-memory.dmp