Malware Analysis Report

2025-01-02 11:07

Sample ID 240315-d6w1psfd8v
Target toolspub1.exe
SHA256 adb8cfd47704d4fb436c600570e580a9a102460b640d0b863e5015e1f879a6df
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

adb8cfd47704d4fb436c600570e580a9a102460b640d0b863e5015e1f879a6df

Threat Level: Known bad

The file toolspub1.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of SendNotifyMessage

Suspicious use of FindShellTrayWindow

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-15 03:37

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-03-15 03:37

Reported

2024-03-15 03:39

Platform

win7-20240221-en

Max time kernel

60s

Max time network

63s

Command Line

"C:\Users\Admin\AppData\Local\Temp\toolspub1.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\toolspub1.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\toolspub1.exe

"C:\Users\Admin\AppData\Local\Temp\toolspub1.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 trad-einmyus.com udp
US 8.8.8.8:53 tradein-myus.com udp
US 8.8.8.8:53 trade-inmyus.com udp

Files

memory/2684-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

memory/2684-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2684-3-0x0000000000400000-0x000000000047E000-memory.dmp

memory/2684-5-0x0000000000400000-0x000000000047E000-memory.dmp

memory/1256-4-0x0000000002130000-0x0000000002146000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-15 03:37

Reported

2024-03-15 03:39

Platform

win10v2004-20240226-en

Max time kernel

60s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\toolspub1.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\toolspub1.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\toolspub1.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
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Suspicious use of SendNotifyMessage

Description Indicator Process Target
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Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\toolspub1.exe

"C:\Users\Admin\AppData\Local\Temp\toolspub1.exe"

Network

Country Destination Domain Proto
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 trad-einmyus.com udp

Files

memory/2340-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

memory/2340-2-0x0000000002080000-0x000000000208B000-memory.dmp

memory/2340-3-0x0000000000400000-0x000000000047E000-memory.dmp

memory/3472-4-0x00000000014B0000-0x00000000014C6000-memory.dmp

memory/2340-5-0x0000000000400000-0x000000000047E000-memory.dmp