Malware Analysis Report

2024-11-13 18:55

Sample ID 241109-xvpxsszje1
Target 55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6
SHA256 55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6
Tags
smokeloader pub3 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

55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6

Threat Level: Known bad

The file 55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor discovery trojan

SmokeLoader

Smokeloader family

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 19:10

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 19:10

Reported

2024-11-09 19:13

Platform

win7-20240903-en

Max time kernel

120s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.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\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2688 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 2688 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 2688 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 2688 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 2688 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 2688 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 2688 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe

Processes

C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe

"C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe"

C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe

"C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe"

Network

N/A

Files

memory/2340-5-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2340-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2688-2-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2688-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

memory/2340-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2340-7-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 19:10

Reported

2024-11-09 19:13

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.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\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1220 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 1220 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 1220 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 1220 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 1220 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe
PID 1220 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe

Processes

C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe

"C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe"

C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.exe

"C:\Users\Admin\AppData\Local\Temp\55a6d4ffb9429be6dcff4cf032b7b007a9931e714aa7eacdc12cea2f44a27ee6.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 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 73.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/1220-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

memory/1220-2-0x00000000020E0000-0x00000000020E9000-memory.dmp

memory/1268-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1268-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1268-5-0x0000000000400000-0x0000000000409000-memory.dmp