Malware Analysis Report

2024-12-08 00:43

Sample ID 240122-lxtszseag5
Target file.exe
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.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-22 09:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-22 09:55

Reported

2024-01-22 09:57

Platform

win7-20231215-en

Max time kernel

150s

Max time network

122s

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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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\file.exe N/A

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
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp
KR 211.181.24.132:80 gxutc2c.com tcp

Files

memory/2484-3-0x0000000000400000-0x000000000085F000-memory.dmp

memory/2484-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2484-1-0x0000000000CA0000-0x0000000000DA0000-memory.dmp

memory/1272-4-0x0000000002AA0000-0x0000000002AB6000-memory.dmp

memory/2484-5-0x0000000000400000-0x000000000085F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-22 09:55

Reported

2024-01-22 09:57

Platform

win10v2004-20231215-en

Max time kernel

151s

Max time network

150s

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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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\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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 202.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 148.177.190.20.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 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
US 8.8.8.8:53 90.148.151.58.in-addr.arpa udp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
KR 58.151.148.90:80 gxutc2c.com tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
KR 58.151.148.90:80 gxutc2c.com tcp
US 8.8.8.8:53 187.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp

Files

memory/3976-2-0x00000000009C0000-0x00000000009CB000-memory.dmp

memory/3976-3-0x0000000000400000-0x000000000085F000-memory.dmp

memory/3976-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

memory/3452-4-0x0000000002640000-0x0000000002656000-memory.dmp

memory/3976-5-0x0000000000400000-0x000000000085F000-memory.dmp