Malware Analysis Report

2025-08-05 12:28

Sample ID 230923-nv3dfsgg75
Target a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98
SHA256 a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98
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

a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98

Threat Level: Known bad

The file a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-23 11:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-23 11:43

Reported

2023-09-23 11:46

Platform

win10-20230915-en

Max time kernel

161s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.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\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.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\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4088 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe
PID 4088 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe
PID 4088 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe
PID 4088 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe
PID 4088 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe
PID 4088 wrote to memory of 5084 N/A C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe

"C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe"

C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe

"C:\Users\Admin\AppData\Local\Temp\a115a47f2672df1ab7239a1acc98f8d56c178d1c71cd9ea73368443f19ef5f98.exe"

Network

Country Destination Domain Proto
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 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp

Files

memory/4088-1-0x0000000002670000-0x0000000002770000-memory.dmp

memory/4088-2-0x0000000002610000-0x0000000002619000-memory.dmp

memory/5084-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/5084-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/5084-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3368-5-0x0000000000DD0000-0x0000000000DE6000-memory.dmp