Malware Analysis Report

2024-11-13 18:56

Sample ID 240216-fvbxhaac5s
Target c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9
SHA256 c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9
Tags
smokeloader pub3 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

c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9

Threat Level: Known bad

The file c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Uses Task Scheduler COM API

Suspicious use of SendNotifyMessage

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-16 05:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-16 05:11

Reported

2024-02-16 05:12

Platform

win7-20231129-en

Max time kernel

60s

Max time network

58s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.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\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe

"C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
US 8.8.8.8:53 babonwo.ru udp
US 8.8.8.8:53 mth.com.ua udp

Files

memory/2196-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

memory/2196-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2196-3-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2196-5-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1384-4-0x0000000002E60000-0x0000000002E76000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-16 05:11

Reported

2024-02-16 05:12

Platform

win10v2004-20231215-en

Max time kernel

60s

Max time network

55s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.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\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.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\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe

"C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe"

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 sjyey.com udp

Files

memory/3016-1-0x0000000000650000-0x0000000000750000-memory.dmp

memory/3016-2-0x00000000021A0000-0x00000000021AB000-memory.dmp

memory/3016-3-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3468-4-0x0000000002770000-0x0000000002786000-memory.dmp

memory/3016-5-0x0000000000400000-0x000000000044B000-memory.dmp