Malware Analysis Report

2025-08-06 03:42

Sample ID 230922-jk5nlsge73
Target 5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11
SHA256 5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11
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

5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11

Threat Level: Known bad

The file 5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-22 07:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-22 07:44

Reported

2023-09-22 07:47

Platform

win10v2004-20230915-en

Max time kernel

151s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.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\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe N/A

Suspicious use of UnmapMainImage

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4428 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe
PID 4428 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe
PID 4428 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe
PID 4428 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe
PID 4428 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe
PID 4428 wrote to memory of 3184 N/A C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe

"C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe"

C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe

"C:\Users\Admin\AppData\Local\Temp\5d676cca0c493faae994040ca98ad4966ac64a90f2e92e5fdada8ed454b3ba11.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.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 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp

Files

memory/4428-0-0x00000000022F0000-0x0000000002305000-memory.dmp

memory/4428-1-0x0000000002310000-0x0000000002319000-memory.dmp

memory/3184-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3184-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4428-4-0x00000000022F0000-0x0000000002305000-memory.dmp

memory/3184-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3172-5-0x0000000003450000-0x0000000003466000-memory.dmp