Malware Analysis Report

2025-04-14 05:16

Sample ID 230929-ewrtnsfg4y
Target 654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf
SHA256 654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf
Tags
smokeloader 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

654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf

Threat Level: Known bad

The file 654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Uses Task Scheduler COM API

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-29 04:17

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2023-09-29 04:17

Reported

2023-09-29 04:18

Platform

win7-20230831-en

Max time kernel

30s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe

"C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 potunulit.org udp

Files

memory/2932-1-0x00000000026A0000-0x00000000027A0000-memory.dmp

memory/2932-2-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2932-3-0x0000000000400000-0x000000000259D000-memory.dmp

memory/1256-4-0x0000000002A20000-0x0000000002A36000-memory.dmp

memory/2932-5-0x0000000000400000-0x000000000259D000-memory.dmp

memory/2932-8-0x0000000000220000-0x0000000000229000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-29 04:17

Reported

2023-09-29 04:18

Platform

win10v2004-20230915-en

Max time kernel

30s

Max time network

35s

Command Line

"C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.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\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.exe

"C:\Users\Admin\AppData\Local\Temp\654b379331d2cc678426426a8ed04f44d99d88299f4f0ab7f2c87fbdbe26f9bf.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 potunulit.org udp
US 8.8.8.8:53 udp

Files

memory/4212-1-0x0000000002740000-0x0000000002840000-memory.dmp

memory/4212-2-0x00000000042E0000-0x00000000042E9000-memory.dmp

memory/4212-3-0x0000000000400000-0x000000000259D000-memory.dmp

memory/3132-4-0x0000000003020000-0x0000000003036000-memory.dmp

memory/4212-5-0x0000000000400000-0x000000000259D000-memory.dmp