Malware Analysis Report

2024-12-08 00:44

Sample ID 240122-ly2j8adfem
Target file
SHA256 5d55a06ca16a85c8189e1a25891c431bd8e36a7a007b804b94a2f29ddd69707c
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

5d55a06ca16a85c8189e1a25891c431bd8e36a7a007b804b94a2f29ddd69707c

Threat Level: Known bad

The file file was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of SendNotifyMessage

Suspicious use of UnmapMainImage

Checks SCSI registry key(s)

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-22 09:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-22 09:57

Reported

2024-01-22 09:59

Platform

win7-20231129-en

Max time kernel

150s

Max time network

118s

Command Line

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

Suspicious behavior: EnumeratesProcesses

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

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
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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\file.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 gxutc2c.com udp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp
HU 91.104.83.7:80 gxutc2c.com tcp

Files

memory/1652-1-0x0000000000290000-0x0000000000390000-memory.dmp

memory/1652-2-0x00000000001B0000-0x00000000001BB000-memory.dmp

memory/1652-3-0x0000000000400000-0x000000000085F000-memory.dmp

memory/1652-5-0x0000000000400000-0x000000000085F000-memory.dmp

memory/1312-4-0x0000000002F80000-0x0000000002F96000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-22 09:57

Reported

2024-01-22 09:59

Platform

win10v2004-20231215-en

Max time kernel

148s

Max time network

146s

Command Line

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

Suspicious behavior: EnumeratesProcesses

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

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

Suspicious use of UnmapMainImage

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

Uses Task Scheduler COM API

persistence

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 182.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 gxutc2c.com udp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
US 8.8.8.8:53 133.24.181.211.in-addr.arpa udp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
KR 211.181.24.133:80 gxutc2c.com tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
KR 211.181.24.133:80 gxutc2c.com tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
KR 211.181.24.133:80 gxutc2c.com tcp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 187.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 208.143.182.52.in-addr.arpa udp

Files

memory/4816-2-0x00000000009D0000-0x00000000009DB000-memory.dmp

memory/4816-1-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

memory/4816-3-0x0000000000400000-0x000000000085F000-memory.dmp

memory/3444-4-0x0000000002A70000-0x0000000002A86000-memory.dmp

memory/4816-5-0x0000000000400000-0x000000000085F000-memory.dmp