Malware Analysis Report

2025-04-03 16:24

Sample ID 241110-mt19bsykdq
Target d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18
SHA256 d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18
Tags
smokeloader 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

d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18

Threat Level: Known bad

The file d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18 was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor discovery trojan

SmokeLoader

Smokeloader family

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 10:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 10:46

Reported

2024-11-10 10:48

Platform

win7-20241010-en

Max time kernel

119s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

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\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2208 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2208 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2208 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2208 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2208 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2208 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2208 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe

"C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe"

C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe

"C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe"

Network

N/A

Files

memory/2208-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

memory/2208-2-0x0000000000020000-0x0000000000029000-memory.dmp

memory/2496-5-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2496-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2496-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2496-8-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 10:46

Reported

2024-11-10 10:48

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

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\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.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\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2216 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2216 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2216 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2216 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2216 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe
PID 2216 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe

"C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe"

C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe

"C:\Users\Admin\AppData\Local\Temp\d9e4efa5c3e0da2102ff89eb23e3f8823415e44ea188de121e058a08581c6d18.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/2216-1-0x0000000000BC0000-0x0000000000CC0000-memory.dmp

memory/2216-2-0x00000000009D0000-0x00000000009D9000-memory.dmp

memory/2800-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2800-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2800-7-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2800-5-0x0000000000410000-0x00000000004D9000-memory.dmp