Malware Analysis Report

2025-01-02 10:56

Sample ID 241009-vefyvatdqc
Target d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe
SHA256 d134bebdf067cc8f99dac75e8b1c22c0f032d29c0baab49d0f8a4eef5304c5d0
Tags
smokeloader pub1 backdoor discovery 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

d134bebdf067cc8f99dac75e8b1c22c0f032d29c0baab49d0f8a4eef5304c5d0

Threat Level: Known bad

The file d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor discovery trojan

SmokeLoader

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-09 16:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-09 16:53

Reported

2024-10-09 16:56

Platform

win7-20240903-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe

"C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 168

Network

N/A

Files

memory/1548-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

memory/1548-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/1548-2-0x0000000000230000-0x000000000023B000-memory.dmp

memory/1548-4-0x0000000000400000-0x0000000000483000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-09 16:53

Reported

2024-10-09 16:56

Platform

win10v2004-20241007-en

Max time kernel

101s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe 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\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe

"C:\Users\Admin\AppData\Local\Temp\d6bc7e1a8b5256f7d2c5d3d344b3bc7f.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3652 -ip 3652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 464

Network

Country Destination Domain Proto
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 101.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/3652-1-0x0000000000670000-0x0000000000770000-memory.dmp

memory/3652-2-0x0000000000400000-0x000000000040B000-memory.dmp

memory/3652-3-0x0000000000400000-0x0000000000483000-memory.dmp

memory/3652-5-0x0000000000400000-0x000000000040B000-memory.dmp