Malware Analysis Report

2024-11-13 18:56

Sample ID 240220-fg66gsbh88
Target 9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961
SHA256 9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961
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

9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961

Threat Level: Known bad

The file 9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-20 04:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-20 04:51

Reported

2024-02-20 04:57

Platform

win7-20231215-en

Max time kernel

300s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.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\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.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\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe

"C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.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/2268-1-0x0000000000500000-0x0000000000600000-memory.dmp

memory/2268-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2268-3-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2268-5-0x0000000000400000-0x0000000000448000-memory.dmp

memory/1208-4-0x0000000002A20000-0x0000000002A36000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-20 04:51

Reported

2024-02-20 04:57

Platform

win10-20240214-en

Max time kernel

300s

Max time network

305s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.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\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.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\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe

"C:\Users\Admin\AppData\Local\Temp\9ea6617c365fb501b9df0e3f7d1e1faae075e7f5d6fc6853c344380afc00c961.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
US 8.8.8.8:53 112.84.119.211.in-addr.arpa udp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 18.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp

Files

memory/1404-1-0x0000000000590000-0x0000000000690000-memory.dmp

memory/1404-2-0x0000000002030000-0x000000000203B000-memory.dmp

memory/1404-3-0x0000000000400000-0x0000000000448000-memory.dmp

memory/3036-4-0x0000000000B10000-0x0000000000B26000-memory.dmp

memory/1404-5-0x0000000000400000-0x0000000000448000-memory.dmp

memory/1404-8-0x0000000002030000-0x000000000203B000-memory.dmp