Malware Analysis Report

2025-08-10 17:40

Sample ID 230916-f61d8sbg68
Target 5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a
SHA256 5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a
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

5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a

Threat Level: Known bad

The file 5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-16 05:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-16 05:29

Reported

2023-09-16 05:32

Platform

win10-20230915-en

Max time kernel

150s

Max time network

132s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.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 queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.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\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2440 wrote to memory of 4540 N/A C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe
PID 2440 wrote to memory of 4540 N/A C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe
PID 2440 wrote to memory of 4540 N/A C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe
PID 2440 wrote to memory of 4540 N/A C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe
PID 2440 wrote to memory of 4540 N/A C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe
PID 2440 wrote to memory of 4540 N/A C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe

"C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe"

C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.exe

"C:\Users\Admin\AppData\Local\Temp\5a1aa91415a6d01eda43af0f34248ce2c4134200a6b6213c8f8953e917427e5a.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 8.8.8.8:53 233.141.123.20.in-addr.arpa udp
US 8.8.8.8:53 224.162.46.104.in-addr.arpa udp

Files

memory/2440-1-0x0000000000820000-0x0000000000920000-memory.dmp

memory/2440-3-0x0000000000780000-0x0000000000789000-memory.dmp

memory/4540-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4540-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4540-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3152-5-0x0000000000E60000-0x0000000000E76000-memory.dmp