Malware Analysis Report

2025-01-02 11:08

Sample ID 240310-tz9k8agc44
Target bf1336f26ed7df9c1d72126e43f558a8
SHA256 87fc3e042747ec6e69f1c32bb906de41b2a6e4b1fdd6bdfb041c3689002e97cf
Tags
smokeloader pub1 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

87fc3e042747ec6e69f1c32bb906de41b2a6e4b1fdd6bdfb041c3689002e97cf

Threat Level: Known bad

The file bf1336f26ed7df9c1d72126e43f558a8 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Program crash

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-10 16:30

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-03-10 16:30

Reported

2024-03-10 16:33

Platform

win7-20240221-en

Max time kernel

150s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.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\bf1336f26ed7df9c1d72126e43f558a8.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe

"C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 aucmoney.com udp
US 8.8.8.8:53 thegymmum.com udp
US 8.8.8.8:53 atvcampingtrips.com udp
US 8.8.8.8:53 kuapakualaman.com udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 nasufmutlu.com udp

Files

memory/2928-2-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2928-1-0x00000000027F0000-0x00000000028F0000-memory.dmp

memory/2928-3-0x0000000000400000-0x00000000023AF000-memory.dmp

memory/1212-4-0x0000000003930000-0x0000000003946000-memory.dmp

memory/2928-5-0x0000000000400000-0x00000000023AF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-10 16:30

Reported

2024-03-10 16:33

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.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\bf1336f26ed7df9c1d72126e43f558a8.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe

"C:\Users\Admin\AppData\Local\Temp\bf1336f26ed7df9c1d72126e43f558a8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4492 -ip 4492

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 372

Network

Country Destination Domain Proto
US 8.8.8.8:53 18.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 aucmoney.com udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 thegymmum.com udp
US 8.8.8.8:53 atvcampingtrips.com udp
US 8.8.8.8:53 kuapakualaman.com udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 nasufmutlu.com udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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 55.36.223.20.in-addr.arpa udp

Files

memory/4492-2-0x0000000002510000-0x0000000002519000-memory.dmp

memory/4492-1-0x00000000025A0000-0x00000000026A0000-memory.dmp

memory/4492-3-0x0000000000400000-0x00000000023AF000-memory.dmp

memory/3360-4-0x0000000002EC0000-0x0000000002ED6000-memory.dmp

memory/4492-7-0x0000000000400000-0x00000000023AF000-memory.dmp

memory/4492-8-0x0000000002510000-0x0000000002519000-memory.dmp