Malware Analysis Report

2024-10-23 16:58

Sample ID 241016-zyb68asgnd
Target 586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74
SHA256 586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74
Tags
upx xloader cia6 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

586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74

Threat Level: Known bad

The file 586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74 was found to be: Known bad.

Malicious Activity Summary

upx xloader cia6 discovery loader rat

Xloader

Xloader payload

Suspicious use of SetThreadContext

UPX packed file

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: MapViewOfSection

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-16 21:07

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-16 21:07

Reported

2024-10-16 21:09

Platform

win7-20240903-en

Max time kernel

15s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe"

Signatures

Xloader

loader xloader

Xloader payload

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

UPX packed file

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

Enumerates physical storage devices

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\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2400 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe C:\Windows\splwow64.exe
PID 2400 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe C:\Windows\splwow64.exe
PID 2400 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe C:\Windows\splwow64.exe
PID 2400 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe C:\Windows\splwow64.exe
PID 2400 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe
PID 2400 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe
PID 2400 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe
PID 2400 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe

Processes

C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe

"C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe"

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe

"C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe"

Network

N/A

Files

memory/2400-0-0x0000000000400000-0x00000000004DF000-memory.dmp

memory/2400-1-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/2400-3-0x0000000003560000-0x0000000003573000-memory.dmp

memory/2400-2-0x0000000003560000-0x0000000003573000-memory.dmp

memory/2400-7-0x0000000004340000-0x0000000004368000-memory.dmp

memory/2400-6-0x0000000000400000-0x00000000004DF000-memory.dmp

memory/2400-5-0x0000000004340000-0x000000000441F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 21:07

Reported

2024-10-16 21:09

Platform

win10v2004-20241007-en

Max time kernel

138s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe"

Signatures

Xloader

loader xloader

Xloader payload

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

UPX packed file

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

Enumerates physical storage devices

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\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe

"C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe"

C:\Windows\splwow64.exe

C:\Windows\splwow64.exe 12288

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc

C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe

"C:\Users\Admin\AppData\Local\Temp\586a9900fca452e2afa7a4522204fc6a3c2536d66672dc7a24e189467c3d2a74.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 66.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp

Files

memory/1136-0-0x0000000000400000-0x00000000004DF000-memory.dmp

memory/1136-1-0x0000000002380000-0x0000000002381000-memory.dmp

memory/1136-3-0x0000000005540000-0x0000000005553000-memory.dmp

memory/1136-2-0x0000000005540000-0x0000000005553000-memory.dmp

memory/2704-4-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1136-5-0x0000000000400000-0x00000000004DF000-memory.dmp

memory/2704-6-0x0000000000430000-0x00000000004F9000-memory.dmp