Malware Analysis Report

2025-08-06 03:42

Sample ID 230922-hnmrjaec3v
Target bf6863460cf38b67423d10b9f51c4751.bin.exe
SHA256 31e54f46b20976c9779d4fde6282ec9fc581b50646a802a517e827c5e7a6aebb
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

31e54f46b20976c9779d4fde6282ec9fc581b50646a802a517e827c5e7a6aebb

Threat Level: Known bad

The file bf6863460cf38b67423d10b9f51c4751.bin.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of UnmapMainImage

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-22 06:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-22 06:53

Reported

2023-09-22 06:55

Platform

win7-20230831-en

Max time kernel

150s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
N/A N/A N/A 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\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

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\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe

"C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gudintas.at udp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp
KR 14.33.209.147:80 gudintas.at tcp

Files

memory/2532-0-0x0000000000220000-0x0000000000235000-memory.dmp

memory/2532-1-0x0000000000240000-0x0000000000249000-memory.dmp

memory/2532-2-0x0000000000400000-0x00000000005A6000-memory.dmp

memory/1204-3-0x0000000002AA0000-0x0000000002AB6000-memory.dmp

memory/2532-7-0x0000000000240000-0x0000000000249000-memory.dmp

memory/2532-4-0x0000000000400000-0x00000000005A6000-memory.dmp

memory/2532-8-0x0000000000220000-0x0000000000235000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-22 06:53

Reported

2023-09-22 06:55

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

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\bf6863460cf38b67423d10b9f51c4751.bin.exe N/A

Suspicious use of UnmapMainImage

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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe

"C:\Users\Admin\AppData\Local\Temp\bf6863460cf38b67423d10b9f51c4751.bin.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 gudintas.at udp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
US 8.8.8.8:53 243.161.140.123.in-addr.arpa udp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
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 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 26.35.223.20.in-addr.arpa udp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
KR 123.140.161.243:80 gudintas.at tcp
US 8.8.8.8:53 12.173.189.20.in-addr.arpa udp

Files

memory/1112-0-0x0000000000950000-0x0000000000965000-memory.dmp

memory/1112-1-0x0000000000970000-0x0000000000979000-memory.dmp

memory/1112-2-0x0000000000400000-0x00000000005A6000-memory.dmp

memory/1112-4-0x0000000000400000-0x00000000005A6000-memory.dmp

memory/3172-3-0x0000000002F30000-0x0000000002F46000-memory.dmp

memory/1112-7-0x0000000000950000-0x0000000000965000-memory.dmp

memory/1112-8-0x0000000000970000-0x0000000000979000-memory.dmp