Malware Analysis Report

2024-11-13 18:56

Sample ID 240219-ab2e6agb88
Target a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9
SHA256 a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9
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

a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9

Threat Level: Known bad

The file a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-19 00:03

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-19 00:03

Reported

2024-02-19 00:08

Platform

win7-20231129-en

Max time kernel

300s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.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 enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A N/A N/A
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Suspicious use of SendNotifyMessage

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

C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe

"C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
MK 95.86.30.3:80 sjyey.com tcp
MK 95.86.30.3:80 sjyey.com tcp
MK 95.86.30.3:80 sjyey.com tcp
MK 95.86.30.3:80 sjyey.com tcp
MK 95.86.30.3:80 sjyey.com tcp
MK 95.86.30.3:80 sjyey.com tcp
MK 95.86.30.3:80 sjyey.com tcp

Files

memory/2328-1-0x0000000000560000-0x0000000000660000-memory.dmp

memory/2328-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2328-3-0x0000000000400000-0x000000000044A000-memory.dmp

memory/1356-4-0x0000000002990000-0x00000000029A6000-memory.dmp

memory/2328-5-0x0000000000400000-0x000000000044A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-19 00:03

Reported

2024-02-19 00:08

Platform

win10-20240214-en

Max time kernel

300s

Max time network

295s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.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\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe

"C:\Users\Admin\AppData\Local\Temp\a3a95a7be9cc017bfaddb6b377724cd763e038479e0f589b964243e545a4d1b9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
MX 187.156.75.116:80 sjyey.com tcp
MX 187.156.75.116:80 sjyey.com tcp
US 8.8.8.8:53 116.75.156.187.in-addr.arpa udp
MX 187.156.75.116:80 sjyey.com tcp
MX 187.156.75.116:80 sjyey.com tcp
MX 187.156.75.116:80 sjyey.com tcp
MX 187.156.75.116:80 sjyey.com tcp
MX 187.156.75.116:80 sjyey.com tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 7.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/5044-1-0x0000000000660000-0x0000000000760000-memory.dmp

memory/5044-2-0x00000000004B0000-0x00000000004BB000-memory.dmp

memory/5044-3-0x0000000000400000-0x000000000044A000-memory.dmp

memory/5044-5-0x0000000000400000-0x000000000044A000-memory.dmp

memory/3340-4-0x0000000000660000-0x0000000000676000-memory.dmp