Malware Analysis Report

2024-11-13 18:57

Sample ID 240220-tt1fcsbc5t
Target dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd
SHA256 dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd
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

dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd

Threat Level: Known bad

The file dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Uses Task Scheduler COM API

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-20 16:21

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-02-20 16:21

Reported

2024-02-20 16:24

Platform

win7-20231215-en

Max time kernel

150s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe

"C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
KR 211.171.233.129:80 sjyey.com tcp
KR 211.171.233.129:80 sjyey.com tcp
KR 211.171.233.129:80 sjyey.com tcp
KR 211.171.233.129:80 sjyey.com tcp
KR 211.171.233.129:80 sjyey.com tcp
KR 211.171.233.129:80 sjyey.com tcp
KR 211.171.233.129:80 sjyey.com tcp

Files

memory/848-1-0x0000000000230000-0x0000000000330000-memory.dmp

memory/848-2-0x00000000003A0000-0x00000000003AB000-memory.dmp

memory/848-3-0x0000000000400000-0x0000000000816000-memory.dmp

memory/1212-4-0x0000000002A10000-0x0000000002A26000-memory.dmp

memory/848-5-0x0000000000400000-0x0000000000816000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-20 16:21

Reported

2024-02-20 16:24

Platform

win10v2004-20240220-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.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\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
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Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe

"C:\Users\Admin\AppData\Local\Temp\dc0913109b9a9f8797e06adee2ba26471e4eabbccffadfeac313dfd1c5995ebd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
GB 92.123.128.172:443 www.bing.com tcp
US 8.8.8.8:53 21.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.128.123.92.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 sjyey.com udp
PA 190.218.66.151:80 sjyey.com tcp
PA 190.218.66.151:80 sjyey.com tcp
US 8.8.8.8:53 151.66.218.190.in-addr.arpa udp
PA 190.218.66.151:80 sjyey.com tcp
PA 190.218.66.151:80 sjyey.com tcp
PA 190.218.66.151:80 sjyey.com tcp
PA 190.218.66.151:80 sjyey.com tcp
PA 190.218.66.151:80 sjyey.com tcp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 77.239.69.13.in-addr.arpa udp

Files

memory/3088-1-0x0000000000A20000-0x0000000000B20000-memory.dmp

memory/3088-2-0x00000000009C0000-0x00000000009CB000-memory.dmp

memory/3088-3-0x0000000000400000-0x0000000000816000-memory.dmp

memory/3088-5-0x0000000000400000-0x0000000000816000-memory.dmp

memory/3432-4-0x0000000003120000-0x0000000003136000-memory.dmp