Malware Analysis Report

2024-12-08 00:48

Sample ID 240120-j4dn8sefaq
Target file
SHA256 c086815f53088951955eebb5bdd5329b57c0d7e65980cb8d6ef7b40a18c6b3d8
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

c086815f53088951955eebb5bdd5329b57c0d7e65980cb8d6ef7b40a18c6b3d8

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

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

Suspicious use of SendNotifyMessage

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-20 08:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-20 08:13

Reported

2024-01-20 08:15

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 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
Key opened \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
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
N/A N/A N/A N/A
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Suspicious use of SendNotifyMessage

Description Indicator Process Target
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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
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp
AL 95.107.163.44:80 gxutc2c.com tcp

Files

memory/3032-1-0x0000000000A10000-0x0000000000B10000-memory.dmp

memory/3032-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/3032-3-0x0000000000400000-0x000000000085B000-memory.dmp

memory/3032-5-0x0000000000400000-0x000000000085B000-memory.dmp

memory/1352-4-0x00000000024D0000-0x00000000024E6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-20 08:13

Reported

2024-01-20 08:15

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

151s

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
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 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 138.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 gxutc2c.com udp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
US 8.8.8.8:53 112.84.119.211.in-addr.arpa udp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
KR 211.119.84.112:80 gxutc2c.com tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
KR 211.119.84.112:80 gxutc2c.com tcp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
KR 211.119.84.112:80 gxutc2c.com tcp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp

Files

memory/3628-1-0x0000000000AA0000-0x0000000000BA0000-memory.dmp

memory/3628-2-0x00000000008E0000-0x00000000008EB000-memory.dmp

memory/3628-3-0x0000000000400000-0x000000000085B000-memory.dmp

memory/3352-4-0x0000000002DA0000-0x0000000002DB6000-memory.dmp

memory/3628-5-0x0000000000400000-0x000000000085B000-memory.dmp