Malware Analysis Report

2025-08-05 12:27

Sample ID 230923-rpqdgsgc5t
Target 8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e
SHA256 8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e
Tags
smokeloader pub1 backdoor 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 Overview

score
10/10

SHA256

8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e

Threat Level: Known bad

The file 8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-23 14:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-23 14:22

Reported

2023-09-23 14:24

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1888 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe
PID 1888 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe
PID 1888 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe
PID 1888 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe
PID 1888 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe
PID 1888 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe

"C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe"

C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe

"C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 155.245.36.23.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 host-file-host6.com udp
US 8.8.8.8:53 host-host-file8.com udp
NL 194.169.175.127:80 host-host-file8.com tcp
US 8.8.8.8:53 127.175.169.194.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp

Files

memory/1888-1-0x0000000002680000-0x0000000002780000-memory.dmp

memory/1888-2-0x00000000042F0000-0x00000000042F9000-memory.dmp

memory/2816-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2816-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3192-5-0x0000000002A90000-0x0000000002AA6000-memory.dmp

memory/2816-6-0x0000000000400000-0x0000000000409000-memory.dmp