Malware Analysis Report

2024-11-13 18:56

Sample ID 240219-aappzafg7y
Target 76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd
SHA256 76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd
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

76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd

Threat Level: Known bad

The file 76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Uses Task Scheduler COM API

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-19 00:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-19 00:00

Reported

2024-02-19 00:05

Platform

win7-20231215-en

Max time kernel

300s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.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\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.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
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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\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe

"C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
KR 211.171.233.126:80 sjyey.com tcp
KR 211.171.233.126:80 sjyey.com tcp
KR 211.171.233.126:80 sjyey.com tcp
KR 211.171.233.126:80 sjyey.com tcp
KR 211.171.233.126:80 sjyey.com tcp
KR 211.171.233.126:80 sjyey.com tcp
KR 211.171.233.126:80 sjyey.com tcp

Files

memory/2104-1-0x0000000000290000-0x0000000000390000-memory.dmp

memory/2104-2-0x00000000001B0000-0x00000000001BB000-memory.dmp

memory/2104-3-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2104-5-0x0000000000400000-0x000000000044C000-memory.dmp

memory/1244-4-0x0000000002A20000-0x0000000002A36000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-19 00:00

Reported

2024-02-19 00:05

Platform

win10-20240214-en

Max time kernel

300s

Max time network

294s

Command Line

"C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.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\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.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\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe

"C:\Users\Admin\AppData\Local\Temp\76d54deaf54a2d36466d141df05cc962f57bcb759305322e64180ce367a7addd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
KR 211.168.53.110:80 sjyey.com tcp
KR 211.168.53.110:80 sjyey.com tcp
US 8.8.8.8:53 110.53.168.211.in-addr.arpa udp
KR 211.168.53.110:80 sjyey.com tcp
KR 211.168.53.110:80 sjyey.com tcp
KR 211.168.53.110:80 sjyey.com tcp
KR 211.168.53.110:80 sjyey.com tcp
KR 211.168.53.110:80 sjyey.com tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 201.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 56.134.221.88.in-addr.arpa udp

Files

memory/1952-1-0x0000000000460000-0x0000000000560000-memory.dmp

memory/1952-2-0x0000000002030000-0x000000000203B000-memory.dmp

memory/1952-3-0x0000000000400000-0x000000000044C000-memory.dmp

memory/3404-4-0x00000000008A0000-0x00000000008B6000-memory.dmp

memory/1952-5-0x0000000000400000-0x000000000044C000-memory.dmp