Malware Analysis Report

2024-11-13 18:56

Sample ID 240218-b1nq2acc81
Target 28c17350f0da6941f68bbea0eb5af380.bin
SHA256 a36af4f79d438db2f56275b4c588c7595950c2c262f102751c93ec13994082ea
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

a36af4f79d438db2f56275b4c588c7595950c2c262f102751c93ec13994082ea

Threat Level: Known bad

The file 28c17350f0da6941f68bbea0eb5af380.bin 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

2024-02-18 01:36

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-02-18 01:36

Reported

2024-02-18 01:39

Platform

win7-20231215-en

Max time kernel

150s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.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\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe

"C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
MX 187.204.54.141:80 sjyey.com tcp
MX 187.204.54.141:80 sjyey.com tcp
MX 187.204.54.141:80 sjyey.com tcp
MX 187.204.54.141:80 sjyey.com tcp
MX 187.204.54.141:80 sjyey.com tcp
MX 187.204.54.141:80 sjyey.com tcp
MX 187.204.54.141:80 sjyey.com tcp

Files

memory/2212-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2212-1-0x0000000002D90000-0x0000000002E90000-memory.dmp

memory/2212-3-0x0000000000400000-0x0000000002BE0000-memory.dmp

memory/1200-4-0x0000000003A20000-0x0000000003A36000-memory.dmp

memory/2212-5-0x0000000000400000-0x0000000002BE0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-18 01:36

Reported

2024-02-18 01:39

Platform

win10v2004-20231222-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.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\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe

"C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 sjyey.com udp
KR 175.120.254.9:80 sjyey.com tcp
KR 175.120.254.9:80 sjyey.com tcp
KR 175.120.254.9:80 sjyey.com tcp
US 8.8.8.8:53 9.254.120.175.in-addr.arpa udp
KR 175.120.254.9:80 sjyey.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
KR 175.120.254.9:80 sjyey.com tcp
KR 175.120.254.9:80 sjyey.com tcp
KR 175.120.254.9:80 sjyey.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 2.17.178.52.in-addr.arpa udp

Files

memory/524-1-0x0000000002D10000-0x0000000002E10000-memory.dmp

memory/524-2-0x00000000047E0000-0x00000000047EB000-memory.dmp

memory/524-3-0x0000000000400000-0x0000000002BE0000-memory.dmp

memory/3424-4-0x0000000002D20000-0x0000000002D36000-memory.dmp

memory/524-5-0x0000000000400000-0x0000000002BE0000-memory.dmp