Malware Analysis Report

2024-11-13 18:55

Sample ID 241109-2ce24aspfz
Target cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309
SHA256 cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309
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

cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309

Threat Level: Known bad

The file cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor discovery trojan

Smokeloader family

SmokeLoader

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 22:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 22:25

Reported

2024-11-09 22:28

Platform

win7-20241010-en

Max time kernel

12s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.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\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2076 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 2076 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 2076 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 2076 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 2076 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 2076 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 2076 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe

Processes

C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe

"C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe"

C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe

"C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe"

Network

N/A

Files

memory/2076-1-0x0000000000640000-0x0000000000740000-memory.dmp

memory/2076-2-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2312-5-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2312-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2312-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2312-8-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 22:25

Reported

2024-11-09 22:28

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.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\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.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\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1216 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 1216 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 1216 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 1216 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 1216 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe
PID 1216 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe

Processes

C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe

"C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe"

C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe

"C:\Users\Admin\AppData\Local\Temp\cb5fe5f824bff23d7f954691b622b103876651b1c34a3d95be3a3b8f9cb4e309.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.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 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/1216-1-0x0000000000800000-0x0000000000900000-memory.dmp

memory/1216-2-0x0000000002210000-0x0000000002219000-memory.dmp

memory/2532-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2532-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2532-5-0x0000000000400000-0x0000000000409000-memory.dmp