Malware Analysis Report

2024-11-30 22:11

Sample ID 241117-esxwhs1dkg
Target 38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045
SHA256 38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045
Tags
xloader vu9b discovery loader rat
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

38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045

Threat Level: Known bad

The file 38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045 was found to be: Known bad.

Malicious Activity Summary

xloader vu9b discovery loader rat

Xloader

Xloader family

Xloader payload

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-17 04:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-17 04:12

Reported

2024-11-17 04:15

Platform

win7-20241023-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe"

Signatures

Xloader

loader xloader

Xloader family

xloader

Xloader payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1988 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 1988 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 1988 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 1988 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 1988 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 1988 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 1988 wrote to memory of 2248 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe

Processes

C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe

"C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe"

C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe

"C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe"

Network

N/A

Files

memory/1988-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

memory/1988-1-0x0000000000CC0000-0x0000000000DA2000-memory.dmp

memory/1988-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

memory/1988-3-0x0000000000460000-0x000000000046C000-memory.dmp

memory/1988-4-0x00000000743F0000-0x0000000074ADE000-memory.dmp

memory/1988-5-0x00000000743FE000-0x00000000743FF000-memory.dmp

memory/1988-6-0x00000000743F0000-0x0000000074ADE000-memory.dmp

memory/1988-7-0x0000000005D10000-0x0000000005D8A000-memory.dmp

memory/1988-8-0x0000000000510000-0x0000000000542000-memory.dmp

memory/2248-9-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2248-11-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2248-15-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2248-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1988-16-0x00000000743F0000-0x0000000074ADE000-memory.dmp

memory/2248-17-0x0000000000DB0000-0x00000000010B3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-17 04:12

Reported

2024-11-17 04:15

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe"

Signatures

Xloader

loader xloader

Xloader family

xloader

Xloader payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3844 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 3844 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 3844 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 3844 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 3844 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe
PID 3844 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe

Processes

C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe

"C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe"

C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe

"C:\Users\Admin\AppData\Local\Temp\38dc6496f79d8b2be723b6285c5bf3725d07a837dcd0d8ec339428f9177c1045.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.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 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/3844-0-0x000000007466E000-0x000000007466F000-memory.dmp

memory/3844-1-0x0000000000350000-0x0000000000432000-memory.dmp

memory/3844-2-0x0000000004DB0000-0x0000000004E4C000-memory.dmp

memory/3844-3-0x0000000005440000-0x00000000059E4000-memory.dmp

memory/3844-4-0x0000000004F30000-0x0000000004FC2000-memory.dmp

memory/3844-5-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

memory/3844-6-0x00000000050C0000-0x0000000005116000-memory.dmp

memory/3844-7-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/3844-8-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/3844-9-0x00000000079F0000-0x00000000079FC000-memory.dmp

memory/3844-10-0x000000007466E000-0x000000007466F000-memory.dmp

memory/3844-11-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/3844-12-0x0000000000C20000-0x0000000000C9A000-memory.dmp

memory/3844-13-0x0000000000920000-0x0000000000952000-memory.dmp

memory/2956-14-0x0000000000400000-0x0000000000429000-memory.dmp

memory/3844-16-0x0000000074660000-0x0000000074E10000-memory.dmp

memory/2956-17-0x0000000001910000-0x0000000001C5A000-memory.dmp