Malware Analysis Report

2025-04-03 18:16

Sample ID 241109-tsdvzazrem
Target 15617ea8f51d9042d096e4782da0aca8
SHA256 2e26fbc72e80531ea6b7a2b07c69f9808054e17097357d15905c09208f894183
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

2e26fbc72e80531ea6b7a2b07c69f9808054e17097357d15905c09208f894183

Threat Level: Known bad

The file 15617ea8f51d9042d096e4782da0aca8 was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor discovery trojan

SmokeLoader

Smokeloader family

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

2024-11-09 16:18

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 16:18

Reported

2024-11-09 16:21

Platform

win7-20241010-en

Max time kernel

122s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\15617ea8f51d9042d096e4782da0aca8.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\15617ea8f51d9042d096e4782da0aca8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\15617ea8f51d9042d096e4782da0aca8.exe

"C:\Users\Admin\AppData\Local\Temp\15617ea8f51d9042d096e4782da0aca8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 136

Network

N/A

Files

memory/2568-3-0x0000000000400000-0x0000000000485000-memory.dmp

memory/2568-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2568-1-0x0000000000290000-0x0000000000390000-memory.dmp

memory/2568-4-0x0000000000400000-0x0000000000485000-memory.dmp

memory/2568-5-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 16:18

Reported

2024-11-09 16:21

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\15617ea8f51d9042d096e4782da0aca8.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\15617ea8f51d9042d096e4782da0aca8.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\15617ea8f51d9042d096e4782da0aca8.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\15617ea8f51d9042d096e4782da0aca8.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\15617ea8f51d9042d096e4782da0aca8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\15617ea8f51d9042d096e4782da0aca8.exe

"C:\Users\Admin\AppData\Local\Temp\15617ea8f51d9042d096e4782da0aca8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1300 -ip 1300

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 75.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/1300-2-0x00000000007F0000-0x00000000007F9000-memory.dmp

memory/1300-1-0x0000000000830000-0x0000000000930000-memory.dmp

memory/1300-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1300-4-0x0000000000400000-0x0000000000485000-memory.dmp

memory/1300-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1300-5-0x00000000007F0000-0x00000000007F9000-memory.dmp