Malware Analysis Report

2025-08-06 03:42

Sample ID 230922-pqra3ahh49
Target f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5
SHA256 f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5
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 Overview

score
10/10

SHA256

f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5

Threat Level: Known bad

The file f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-22 12:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-22 12:32

Reported

2023-09-22 12:34

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.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
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Suspicious use of FindShellTrayWindow

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2064 wrote to memory of 4640 N/A C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe
PID 2064 wrote to memory of 4640 N/A C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe
PID 2064 wrote to memory of 4640 N/A C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe
PID 2064 wrote to memory of 4640 N/A C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe
PID 2064 wrote to memory of 4640 N/A C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe
PID 2064 wrote to memory of 4640 N/A C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe

"C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe"

C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe

"C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 126.177.238.8.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 host-file-host6.com udp
US 8.8.8.8:53 host-host-file8.com udp
NL 194.169.175.127:80 host-host-file8.com tcp
US 8.8.8.8:53 127.175.169.194.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp

Files

memory/2064-0-0x00000000006F0000-0x0000000000705000-memory.dmp

memory/2064-1-0x00000000021B0000-0x00000000021B9000-memory.dmp

memory/4640-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4640-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2064-3-0x00000000006F0000-0x0000000000705000-memory.dmp

memory/4640-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2504-5-0x0000000001430000-0x0000000001446000-memory.dmp