Malware Analysis Report

2025-01-02 10:54

Sample ID 241016-x3cx7s1fln
Target c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b
SHA256 c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b
Tags
smokeloader pub1 backdoor discovery trojan
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

c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b

Threat Level: Known bad

The file c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor discovery trojan

SmokeLoader

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Checks SCSI registry key(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-16 19:22

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 19:22

Reported

2024-10-16 19:23

Platform

win10v2004-20241007-en

Max time kernel

34s

Max time network

35s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

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\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe

"C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1576 -ip 1576

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1576 -s 352

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 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp

Files

memory/1576-1-0x0000000000490000-0x0000000000590000-memory.dmp

memory/1576-2-0x0000000000400000-0x000000000040B000-memory.dmp

memory/1576-3-0x0000000000400000-0x000000000047C000-memory.dmp

memory/1576-4-0x0000000000400000-0x000000000047C000-memory.dmp

memory/1576-5-0x0000000000400000-0x000000000040B000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-16 19:22

Reported

2024-10-16 19:23

Platform

win7-20240903-en

Max time kernel

16s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe

"C:\Users\Admin\AppData\Local\Temp\c3816fc535c73f819e2dc1a69fa323086daf9b0b2521bc61320bade1a774d07b.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2432 -s 136

Network

N/A

Files

memory/2432-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/2432-2-0x00000000001B0000-0x00000000001BB000-memory.dmp

memory/2432-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

memory/2432-4-0x0000000000400000-0x000000000047C000-memory.dmp