Malware Analysis Report

2025-01-02 10:51

Sample ID 241010-ccn8bsthqa
Target 8c1d8e39684221eb40c4a427f6cc496c.exe
SHA256 519bb9d83ef8b44ad7a20404c2ddf967d25f8fb1a36d28859d1cee62c7eefbb5
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

519bb9d83ef8b44ad7a20404c2ddf967d25f8fb1a36d28859d1cee62c7eefbb5

Threat Level: Known bad

The file 8c1d8e39684221eb40c4a427f6cc496c.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

2024-10-10 01:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-10 01:56

Reported

2024-10-10 01:58

Platform

win7-20240903-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c1d8e39684221eb40c4a427f6cc496c.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\8c1d8e39684221eb40c4a427f6cc496c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8c1d8e39684221eb40c4a427f6cc496c.exe

"C:\Users\Admin\AppData\Local\Temp\8c1d8e39684221eb40c4a427f6cc496c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 168

Network

N/A

Files

memory/2792-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/2792-2-0x00000000002A0000-0x00000000002AB000-memory.dmp

memory/2792-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

memory/2792-4-0x0000000000400000-0x000000000047A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-10 01:56

Reported

2024-10-10 01:58

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c1d8e39684221eb40c4a427f6cc496c.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\8c1d8e39684221eb40c4a427f6cc496c.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\8c1d8e39684221eb40c4a427f6cc496c.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\8c1d8e39684221eb40c4a427f6cc496c.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\8c1d8e39684221eb40c4a427f6cc496c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8c1d8e39684221eb40c4a427f6cc496c.exe

"C:\Users\Admin\AppData\Local\Temp\8c1d8e39684221eb40c4a427f6cc496c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4008 -ip 4008

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4008 -s 464

Network

Country Destination Domain Proto
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/4008-2-0x0000000000400000-0x000000000040B000-memory.dmp

memory/4008-3-0x0000000000400000-0x000000000047A000-memory.dmp

memory/4008-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

memory/4008-4-0x0000000000400000-0x000000000047A000-memory.dmp

memory/4008-5-0x0000000000400000-0x000000000040B000-memory.dmp