Malware Analysis Report

2024-11-13 18:57

Sample ID 240219-t3w5asgg79
Target f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b
SHA256 f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b
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

f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b

Threat Level: Known bad

The file f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b 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

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-19 16:35

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-02-19 16:35

Reported

2024-02-19 16:38

Platform

win7-20240215-en

Max time kernel

150s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.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\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe

"C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
KR 211.53.230.67:80 sjyey.com tcp
KR 211.53.230.67:80 sjyey.com tcp
KR 211.53.230.67:80 sjyey.com tcp
KR 211.53.230.67:80 sjyey.com tcp
KR 211.53.230.67:80 sjyey.com tcp
KR 211.53.230.67:80 sjyey.com tcp
KR 211.53.230.67:80 sjyey.com tcp

Files

memory/2744-3-0x0000000000400000-0x000000000044A000-memory.dmp

memory/2744-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2744-1-0x00000000008B0000-0x00000000009B0000-memory.dmp

memory/2744-5-0x0000000000400000-0x000000000044A000-memory.dmp

memory/1184-4-0x0000000002E10000-0x0000000002E26000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-19 16:35

Reported

2024-02-19 16:38

Platform

win10v2004-20231215-en

Max time kernel

152s

Max time network

159s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.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\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe

"C:\Users\Admin\AppData\Local\Temp\f89ca16569af9a2a3e03f825ad6eef16d4d32fc7e5cfc30c9cd30072f54b0e3b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 200.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 sjyey.com udp
KR 211.171.233.126:80 sjyey.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
KR 211.171.233.126:80 sjyey.com tcp
US 8.8.8.8:53 126.233.171.211.in-addr.arpa udp
KR 211.171.233.126:80 sjyey.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
KR 211.171.233.126:80 sjyey.com tcp
KR 211.171.233.126:80 sjyey.com tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
KR 211.171.233.126:80 sjyey.com tcp
US 8.8.8.8:53 232.135.221.88.in-addr.arpa udp
KR 211.171.233.126:80 sjyey.com tcp
US 8.8.8.8:53 67.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 209.143.182.52.in-addr.arpa udp

Files

memory/1616-2-0x00000000005F0000-0x00000000005FB000-memory.dmp

memory/1616-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

memory/1616-3-0x0000000000400000-0x000000000044A000-memory.dmp

memory/3500-4-0x0000000002580000-0x0000000002596000-memory.dmp

memory/1616-5-0x0000000000400000-0x000000000044A000-memory.dmp

memory/1616-8-0x00000000005F0000-0x00000000005FB000-memory.dmp