Malware Analysis Report

2025-01-02 10:52

Sample ID 241010-xc7d5a1cjh
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 18:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-10 18:43

Reported

2024-10-10 18:46

Platform

win7-20240729-en

Max time kernel

16s

Max time network

17s

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 2552 -s 168

Network

N/A

Files

memory/2552-1-0x0000000000580000-0x0000000000680000-memory.dmp

memory/2552-2-0x0000000000230000-0x000000000023B000-memory.dmp

memory/2552-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/2552-4-0x0000000000400000-0x000000000047A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-10 18:43

Reported

2024-10-10 18:46

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

99s

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 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
Key opened \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 468 -p 1008 -ip 1008

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1008 -s 464

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/1008-1-0x0000000000680000-0x0000000000780000-memory.dmp

memory/1008-2-0x0000000000400000-0x000000000040B000-memory.dmp

memory/1008-3-0x0000000000400000-0x000000000047A000-memory.dmp

memory/1008-4-0x0000000000400000-0x000000000047A000-memory.dmp

memory/1008-5-0x0000000000400000-0x000000000040B000-memory.dmp