Malware Analysis Report

2024-12-08 00:47

Sample ID 240107-w3fhnacfa2
Target 5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe
SHA256 5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2
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

5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2

Threat Level: Known bad

The file 5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.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 use of SendNotifyMessage

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-07 18:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-07 18:26

Reported

2024-01-07 18:29

Platform

win7-20231215-en

Max time kernel

151s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.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\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
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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\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe

"C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 directorycart.com udp
CA 157.53.227.1:80 directorycart.com tcp
US 8.8.8.8:53 tierzahnarzt.at udp
DE 3.64.163.50:80 tierzahnarzt.at tcp
US 8.8.8.8:53 streetofcards.com udp
US 8.8.8.8:53 ycdfzd.com udp
US 8.8.8.8:53 successcoachceo.com udp
US 8.8.8.8:53 uhvu.cn udp
HK 103.120.80.155:80 uhvu.cn tcp
US 8.8.8.8:53 japanarticle.com udp
ID 34.128.82.12:80 japanarticle.com tcp

Files

memory/2640-1-0x0000000001B20000-0x0000000001C20000-memory.dmp

memory/2640-2-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2640-3-0x0000000000400000-0x00000000016BD000-memory.dmp

memory/1244-4-0x0000000002B90000-0x0000000002BA6000-memory.dmp

memory/2640-5-0x0000000000400000-0x00000000016BD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-07 18:26

Reported

2024-01-07 18:29

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.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\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.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\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe

"C:\Users\Admin\AppData\Local\Temp\5eff7e99184b9c8352125aaf8aa9d72e33049c52dc4eb7a69d509da3e7004cb2.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 201.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 directorycart.com udp
CA 157.53.227.1:80 directorycart.com tcp
US 8.8.8.8:53 tierzahnarzt.at udp
DE 3.64.163.50:80 tierzahnarzt.at tcp
US 8.8.8.8:53 streetofcards.com udp
US 8.8.8.8:53 1.227.53.157.in-addr.arpa udp
US 8.8.8.8:53 50.163.64.3.in-addr.arpa udp
US 8.8.8.8:53 ycdfzd.com udp
US 8.8.8.8:53 successcoachceo.com udp
US 8.8.8.8:53 uhvu.cn udp
HK 103.120.80.155:80 uhvu.cn tcp
US 8.8.8.8:53 japanarticle.com udp
ID 34.128.82.12:80 japanarticle.com tcp
US 8.8.8.8:53 155.80.120.103.in-addr.arpa udp
US 8.8.8.8:53 12.82.128.34.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 68.179.17.96.in-addr.arpa udp
GB 96.16.110.41:443 tcp
US 192.229.221.95:80 tcp
US 8.8.8.8:53 16.173.189.20.in-addr.arpa udp

Files

memory/4500-1-0x00000000016C0000-0x00000000017C0000-memory.dmp

memory/4500-2-0x0000000003400000-0x0000000003409000-memory.dmp

memory/4500-3-0x0000000000400000-0x00000000016BD000-memory.dmp

memory/3376-4-0x0000000002D10000-0x0000000002D26000-memory.dmp

memory/4500-5-0x0000000000400000-0x00000000016BD000-memory.dmp