Malware Analysis Report

2025-05-06 02:06

Sample ID 241110-renf5sycrd
Target ab4251243c069bfef568fa1b14446dcbb1824cf8
SHA256 9feb7797cf9359b5dc07204f3235422d5eaa54f950ee7c8f8066d1ce32c28914
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

9feb7797cf9359b5dc07204f3235422d5eaa54f950ee7c8f8066d1ce32c28914

Threat Level: Known bad

The file ab4251243c069bfef568fa1b14446dcbb1824cf8 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

2024-11-10 14:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 14:06

Reported

2024-11-10 14:09

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ab4251243c069bfef568fa1b14446dcbb1824cf8.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\ab4251243c069bfef568fa1b14446dcbb1824cf8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ab4251243c069bfef568fa1b14446dcbb1824cf8.exe

"C:\Users\Admin\AppData\Local\Temp\ab4251243c069bfef568fa1b14446dcbb1824cf8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 136

Network

N/A

Files

memory/2204-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2204-2-0x00000000001B0000-0x00000000001B9000-memory.dmp

memory/2204-1-0x0000000000290000-0x0000000000390000-memory.dmp

memory/2204-5-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2204-4-0x0000000000400000-0x000000000048E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 14:06

Reported

2024-11-10 14:09

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ab4251243c069bfef568fa1b14446dcbb1824cf8.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\ab4251243c069bfef568fa1b14446dcbb1824cf8.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\ab4251243c069bfef568fa1b14446dcbb1824cf8.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\ab4251243c069bfef568fa1b14446dcbb1824cf8.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\ab4251243c069bfef568fa1b14446dcbb1824cf8.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ab4251243c069bfef568fa1b14446dcbb1824cf8.exe

"C:\Users\Admin\AppData\Local\Temp\ab4251243c069bfef568fa1b14446dcbb1824cf8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1572 -ip 1572

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1572 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.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 8.8.8.8:53 137.190.18.2.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 22.236.111.52.in-addr.arpa udp

Files

memory/1572-1-0x0000000000670000-0x0000000000770000-memory.dmp

memory/1572-2-0x00000000005F0000-0x00000000005F9000-memory.dmp

memory/1572-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1572-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1572-5-0x00000000005F0000-0x00000000005F9000-memory.dmp

memory/1572-4-0x0000000000400000-0x000000000048E000-memory.dmp