Malware Analysis Report

2025-04-03 14:31

Sample ID 241110-m22vtsylen
Target c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9
SHA256 c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9
Tags
smokeloader 2023 backdoor discovery trojan
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

c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9

Threat Level: Known bad

The file c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9 was found to be: Known bad.

Malicious Activity Summary

smokeloader 2023 backdoor discovery trojan

Smokeloader family

SmokeLoader

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 10:58

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 10:58

Reported

2024-11-10 11:01

Platform

win7-20241010-en

Max time kernel

121s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe

"C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 804 -s 136

Network

N/A

Files

memory/804-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/804-1-0x0000000000230000-0x0000000000330000-memory.dmp

memory/804-3-0x0000000000400000-0x000000000045F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 10:58

Reported

2024-11-10 11:01

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

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\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe

"C:\Users\Admin\AppData\Local\Temp\c3758732a88336c66a4d290e736e840a305ca07eed8579069acdd8b316a975a9.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2908 -ip 2908

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2908 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 68.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 105.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/2908-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2908-1-0x0000000000470000-0x0000000000570000-memory.dmp

memory/2908-3-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2908-5-0x0000000000400000-0x000000000045F000-memory.dmp

memory/2908-6-0x0000000000400000-0x0000000000409000-memory.dmp