Malware Analysis Report

2024-11-30 22:17

Sample ID 241121-ylaxyswkcz
Target 5e74a8deacb5b18b78d3c7f9425210d696ad1b4f43e34b6f61d1f9e89ff0a9f7
SHA256 5e74a8deacb5b18b78d3c7f9425210d696ad1b4f43e34b6f61d1f9e89ff0a9f7
Tags
xloader rbg8 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

5e74a8deacb5b18b78d3c7f9425210d696ad1b4f43e34b6f61d1f9e89ff0a9f7

Threat Level: Known bad

The file 5e74a8deacb5b18b78d3c7f9425210d696ad1b4f43e34b6f61d1f9e89ff0a9f7 was found to be: Known bad.

Malicious Activity Summary

xloader rbg8 discovery loader rat

Xloader

Xloader family

Xloader payload

Deletes itself

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Enumerates system info in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 19:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 19:51

Reported

2024-11-21 19:54

Platform

win7-20240903-en

Max time kernel

147s

Max time network

125s

Command Line

C:\Windows\Explorer.EXE

Signatures

Xloader

loader xloader

Xloader family

xloader

Xloader payload

rat
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

Deletes itself

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3000 set thread context of 2872 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 2872 set thread context of 1196 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Windows\Explorer.EXE
PID 2748 set thread context of 1196 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\Explorer.EXE

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\PO_006614.doc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\chkdsk.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier C:\Windows\SysWOW64\chkdsk.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\chkdsk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3000 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 3000 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 3000 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 3000 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 3000 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 3000 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 3000 wrote to memory of 2872 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 1196 wrote to memory of 2748 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\chkdsk.exe
PID 1196 wrote to memory of 2748 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\chkdsk.exe
PID 1196 wrote to memory of 2748 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\chkdsk.exe
PID 1196 wrote to memory of 2748 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\chkdsk.exe
PID 2748 wrote to memory of 2624 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\SysWOW64\cmd.exe
PID 2748 wrote to memory of 2624 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\SysWOW64\cmd.exe
PID 2748 wrote to memory of 2624 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\SysWOW64\cmd.exe
PID 2748 wrote to memory of 2624 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe

"C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"

C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe

"C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"

C:\Windows\SysWOW64\chkdsk.exe

"C:\Windows\SysWOW64\chkdsk.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"

Network

N/A

Files

memory/3000-0-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

memory/3000-1-0x0000000000FE0000-0x000000000113E000-memory.dmp

memory/3000-2-0x0000000073E90000-0x000000007457E000-memory.dmp

memory/3000-3-0x0000000000310000-0x0000000000326000-memory.dmp

memory/3000-4-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

memory/3000-5-0x0000000073E90000-0x000000007457E000-memory.dmp

memory/3000-6-0x00000000051D0000-0x0000000005250000-memory.dmp

memory/3000-7-0x0000000005000000-0x0000000005042000-memory.dmp

memory/2872-8-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2872-9-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2872-12-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2872-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3000-13-0x0000000073E90000-0x000000007457E000-memory.dmp

memory/2872-14-0x00000000008D0000-0x0000000000BD3000-memory.dmp

memory/1196-18-0x0000000000010000-0x0000000000020000-memory.dmp

memory/2872-17-0x0000000000080000-0x0000000000090000-memory.dmp

memory/2872-16-0x0000000000400000-0x0000000000429000-memory.dmp

memory/1196-19-0x0000000004C50000-0x0000000004DB0000-memory.dmp

memory/2748-20-0x0000000000150000-0x0000000000157000-memory.dmp

memory/2748-21-0x0000000000150000-0x0000000000157000-memory.dmp

memory/2748-22-0x0000000000080000-0x00000000000A9000-memory.dmp

memory/1196-23-0x0000000004C50000-0x0000000004DB0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 19:51

Reported

2024-11-21 19:54

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

149s

Command Line

C:\Windows\Explorer.EXE

Signatures

Xloader

loader xloader

Xloader family

xloader

Xloader payload

rat
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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1680 set thread context of 3376 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 3376 set thread context of 3428 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Windows\Explorer.EXE
PID 3376 set thread context of 3428 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Windows\Explorer.EXE
PID 2084 set thread context of 3428 N/A C:\Windows\SysWOW64\netsh.exe C:\Windows\Explorer.EXE

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\netsh.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1680 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 1680 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 1680 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 1680 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 1680 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 1680 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe
PID 3376 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Windows\SysWOW64\netsh.exe
PID 3376 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Windows\SysWOW64\netsh.exe
PID 3376 wrote to memory of 2084 N/A C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe C:\Windows\SysWOW64\netsh.exe
PID 2084 wrote to memory of 1640 N/A C:\Windows\SysWOW64\netsh.exe C:\Windows\SysWOW64\cmd.exe
PID 2084 wrote to memory of 1640 N/A C:\Windows\SysWOW64\netsh.exe C:\Windows\SysWOW64\cmd.exe
PID 2084 wrote to memory of 1640 N/A C:\Windows\SysWOW64\netsh.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe

"C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"

C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe

"C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"

C:\Windows\SysWOW64\netsh.exe

"C:\Windows\SysWOW64\netsh.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\PO_006614.doc.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.otmlords.com udp
US 8.8.8.8:53 www.bergheimmeatmarket.com udp
US 198.49.23.144:80 www.bergheimmeatmarket.com tcp
US 8.8.8.8:53 144.23.49.198.in-addr.arpa udp
US 8.8.8.8:53 www.richangermiller.com udp
US 8.8.8.8:53 www.asiannics.icu udp
US 8.8.8.8:53 www.unagitated.com udp
US 8.8.8.8:53 www.avrez.xyz udp
US 8.8.8.8:53 www.travelingnest.com udp
US 3.33.130.190:80 www.travelingnest.com tcp
US 8.8.8.8:53 190.130.33.3.in-addr.arpa udp
US 8.8.8.8:53 www.quickbooksmallbusiness.com udp
US 8.8.8.8:53 www.mktdigitalplus.com udp
FR 18.245.199.82:80 www.mktdigitalplus.com tcp
US 8.8.8.8:53 82.199.245.18.in-addr.arpa udp
US 8.8.8.8:53 www.construirsanidade.com udp

Files

memory/1680-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

memory/1680-1-0x0000000000B80000-0x0000000000CDE000-memory.dmp

memory/1680-2-0x0000000005690000-0x000000000572C000-memory.dmp

memory/1680-3-0x0000000005CE0000-0x0000000006284000-memory.dmp

memory/1680-4-0x00000000057D0000-0x0000000005862000-memory.dmp

memory/1680-5-0x0000000005770000-0x000000000577A000-memory.dmp

memory/1680-6-0x00000000059D0000-0x0000000005A26000-memory.dmp

memory/1680-7-0x0000000074CA0000-0x0000000075450000-memory.dmp

memory/1680-8-0x00000000059C0000-0x00000000059D6000-memory.dmp

memory/1680-9-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

memory/1680-10-0x0000000074CA0000-0x0000000075450000-memory.dmp

memory/1680-11-0x0000000006800000-0x0000000006880000-memory.dmp

memory/1680-12-0x0000000008DA0000-0x0000000008DE2000-memory.dmp

memory/3376-13-0x0000000000400000-0x0000000000429000-memory.dmp

memory/1680-15-0x0000000074CA0000-0x0000000075450000-memory.dmp

memory/3376-16-0x00000000016F0000-0x0000000001A3A000-memory.dmp

memory/3376-19-0x00000000015C0000-0x00000000015D0000-memory.dmp

memory/3428-20-0x0000000002B60000-0x0000000002C2A000-memory.dmp

memory/3376-18-0x0000000000400000-0x0000000000429000-memory.dmp

memory/3376-22-0x0000000000400000-0x0000000000429000-memory.dmp

memory/3376-23-0x0000000003410000-0x0000000003420000-memory.dmp

memory/3428-24-0x0000000008850000-0x0000000008964000-memory.dmp

memory/3428-25-0x0000000002B60000-0x0000000002C2A000-memory.dmp

memory/2084-28-0x00000000008C0000-0x00000000008DE000-memory.dmp

memory/2084-26-0x00000000008C0000-0x00000000008DE000-memory.dmp

memory/3428-29-0x0000000008850000-0x0000000008964000-memory.dmp

memory/2084-30-0x0000000001000000-0x0000000001029000-memory.dmp

memory/3428-33-0x0000000002C30000-0x0000000002CDA000-memory.dmp

memory/3428-34-0x0000000002C30000-0x0000000002CDA000-memory.dmp

memory/3428-36-0x0000000002C30000-0x0000000002CDA000-memory.dmp