Malware Analysis Report

2025-01-02 10:54

Sample ID 241016-a4mgpsycrn
Target 66c625cef9aa371ac55a64c94691891c.exe
SHA256 c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c
Tags
smokeloader pub1 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

c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c

Threat Level: Known bad

The file 66c625cef9aa371ac55a64c94691891c.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor discovery trojan

SmokeLoader

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

2024-10-16 00:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-16 00:46

Reported

2024-10-16 00:48

Platform

win7-20241010-en

Max time kernel

14s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66c625cef9aa371ac55a64c94691891c.exe"

Signatures

SmokeLoader

trojan backdoor 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\66c625cef9aa371ac55a64c94691891c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66c625cef9aa371ac55a64c94691891c.exe

"C:\Users\Admin\AppData\Local\Temp\66c625cef9aa371ac55a64c94691891c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 136

Network

N/A

Files

memory/2244-2-0x00000000001B0000-0x00000000001BB000-memory.dmp

memory/2244-1-0x0000000000290000-0x0000000000390000-memory.dmp

memory/2244-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/2244-4-0x0000000000400000-0x000000000047C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 00:46

Reported

2024-10-16 00:48

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66c625cef9aa371ac55a64c94691891c.exe"

Signatures

SmokeLoader

trojan backdoor 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\66c625cef9aa371ac55a64c94691891c.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\66c625cef9aa371ac55a64c94691891c.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\66c625cef9aa371ac55a64c94691891c.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\66c625cef9aa371ac55a64c94691891c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66c625cef9aa371ac55a64c94691891c.exe

"C:\Users\Admin\AppData\Local\Temp\66c625cef9aa371ac55a64c94691891c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4760 -ip 4760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.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 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 udp

Files

memory/4760-1-0x00000000007D0000-0x00000000008D0000-memory.dmp

memory/4760-2-0x0000000000400000-0x000000000040B000-memory.dmp

memory/4760-3-0x0000000000400000-0x000000000047C000-memory.dmp

memory/4760-5-0x0000000000400000-0x000000000047C000-memory.dmp

memory/4760-6-0x0000000000400000-0x000000000040B000-memory.dmp