Malware Analysis Report

2025-08-06 03:42

Sample ID 230922-ynzn4aca75
Target 0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4
SHA256 0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4
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

0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4

Threat Level: Known bad

The file 0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4 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: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-22 19:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-22 19:56

Reported

2023-09-22 19:59

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.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\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.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\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3828 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe
PID 3828 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe
PID 3828 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe
PID 3828 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe
PID 3828 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe
PID 3828 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe

"C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe"

C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe

"C:\Users\Admin\AppData\Local\Temp\0fedb4404d94b92490ce84f4beba4839f8b035f7d5bbfd5e18d7e491e5c8a5e4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 126.177.238.8.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.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 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp

Files

memory/3828-0-0x0000000002180000-0x0000000002195000-memory.dmp

memory/3828-1-0x00000000021A0000-0x00000000021A9000-memory.dmp

memory/660-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3828-4-0x0000000002180000-0x0000000002195000-memory.dmp

memory/660-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/660-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3156-5-0x0000000002B70000-0x0000000002B86000-memory.dmp