Malware Analysis Report

2025-08-06 03:42

Sample ID 230922-fpb1bafb94
Target 6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920
SHA256 6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920
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

6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920

Threat Level: Known bad

The file 6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Suspicious use of SetThreadContext

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-22 05:02

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2023-09-22 05:02

Reported

2023-09-22 05:05

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.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\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.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\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3636 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe
PID 3636 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe
PID 3636 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe
PID 3636 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe
PID 3636 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe
PID 3636 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe

"C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe"

C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe

"C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.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 8.8.8.8:53 157.123.68.40.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
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 27.178.89.13.in-addr.arpa udp

Files

memory/3636-0-0x0000000000770000-0x0000000000785000-memory.dmp

memory/3636-1-0x0000000002310000-0x0000000002319000-memory.dmp

memory/1440-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3636-3-0x0000000000770000-0x0000000000785000-memory.dmp

memory/1440-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1440-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3160-5-0x0000000000D80000-0x0000000000D96000-memory.dmp