Malware Analysis Report

2025-05-06 03:23

Sample ID 241109-nyxx5stfjn
Target 45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305
SHA256 45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305
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

45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305

Threat Level: Known bad

The file 45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305 was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor discovery trojan

SmokeLoader

Smokeloader family

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 11:48

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 11:48

Reported

2024-11-09 11:51

Platform

win7-20241010-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.exe

"C:\Users\Admin\AppData\Local\Temp\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 136

Network

N/A

Files

memory/1944-1-0x0000000000650000-0x0000000000750000-memory.dmp

memory/1944-3-0x0000000000400000-0x0000000000486000-memory.dmp

memory/1944-2-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 11:48

Reported

2024-11-09 11:51

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.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\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.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\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.exe

"C:\Users\Admin\AppData\Local\Temp\45f315491f2b8a4e84dc2695908640eb52dbb027f5642c22c531aea6ff4bf305.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2660 -ip 2660

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 226.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 89.82.67.80.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/2660-1-0x00000000004C0000-0x00000000005C0000-memory.dmp

memory/2660-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2660-3-0x0000000000400000-0x0000000000486000-memory.dmp

memory/2660-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2660-5-0x0000000000400000-0x0000000000486000-memory.dmp