Malware Analysis Report

2024-12-08 00:46

Sample ID 240120-j3tztsfab6
Target file.exe
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c086815f53088951955eebb5bdd5329b57c0d7e65980cb8d6ef7b40a18c6b3d8

Threat Level: Known bad

The file file.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Uses Task Scheduler COM API

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Checks SCSI registry key(s)

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-20 08:12

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-20 08:12

Reported

2024-01-20 08:14

Platform

win10v2004-20231215-en

Max time kernel

152s

Max time network

157s

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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 gxutc2c.com udp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 9.254.120.175.in-addr.arpa udp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
NL 52.142.223.178:80 tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 7.173.189.20.in-addr.arpa udp

Files

memory/1756-1-0x0000000000900000-0x0000000000A00000-memory.dmp

memory/1756-2-0x00000000025A0000-0x00000000025AB000-memory.dmp

memory/1756-3-0x0000000000400000-0x000000000085B000-memory.dmp

memory/3476-4-0x0000000003060000-0x0000000003076000-memory.dmp

memory/1756-5-0x0000000000400000-0x000000000085B000-memory.dmp

memory/1756-8-0x00000000025A0000-0x00000000025AB000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-20 08:12

Reported

2024-01-20 08:14

Platform

win7-20231215-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 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
Key queried \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
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
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp
UZ 195.158.3.162:80 gxutc2c.com tcp

Files

memory/1320-1-0x0000000000250000-0x0000000000350000-memory.dmp

memory/1320-2-0x00000000001B0000-0x00000000001BB000-memory.dmp

memory/1320-3-0x0000000000400000-0x000000000085B000-memory.dmp

memory/1188-4-0x00000000024B0000-0x00000000024C6000-memory.dmp

memory/1320-5-0x0000000000400000-0x000000000085B000-memory.dmp