Malware Analysis Report

2025-04-03 18:02

Sample ID 241109-sn2wkazkhq
Target e1911a77cf7dcaf982420e17f82cf0b3
SHA256 ef7b323da7f0a641372fd2248c561c879aa1dfeafa294df4564e5dee6d3b72aa
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

ef7b323da7f0a641372fd2248c561c879aa1dfeafa294df4564e5dee6d3b72aa

Threat Level: Known bad

The file e1911a77cf7dcaf982420e17f82cf0b3 was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor discovery trojan

SmokeLoader

Smokeloader family

Program crash

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 15:17

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 15:17

Reported

2024-11-09 15:19

Platform

win7-20240903-en

Max time kernel

121s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e1911a77cf7dcaf982420e17f82cf0b3.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\e1911a77cf7dcaf982420e17f82cf0b3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e1911a77cf7dcaf982420e17f82cf0b3.exe

"C:\Users\Admin\AppData\Local\Temp\e1911a77cf7dcaf982420e17f82cf0b3.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 136

Network

N/A

Files

memory/2484-1-0x0000000000760000-0x0000000000860000-memory.dmp

memory/2484-3-0x0000000000400000-0x0000000000584000-memory.dmp

memory/2484-2-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 15:17

Reported

2024-11-09 15:19

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e1911a77cf7dcaf982420e17f82cf0b3.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\e1911a77cf7dcaf982420e17f82cf0b3.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\e1911a77cf7dcaf982420e17f82cf0b3.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\e1911a77cf7dcaf982420e17f82cf0b3.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\e1911a77cf7dcaf982420e17f82cf0b3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e1911a77cf7dcaf982420e17f82cf0b3.exe

"C:\Users\Admin\AppData\Local\Temp\e1911a77cf7dcaf982420e17f82cf0b3.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3648 -ip 3648

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 356

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/3648-1-0x00000000007E0000-0x00000000008E0000-memory.dmp

memory/3648-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3648-3-0x0000000000400000-0x0000000000584000-memory.dmp

memory/3648-4-0x0000000000400000-0x0000000000584000-memory.dmp

memory/3648-5-0x0000000000400000-0x0000000000409000-memory.dmp