Malware Analysis Report

2025-01-02 10:52

Sample ID 241017-csec3a1arm
Target c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.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 c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.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

2024-10-17 02:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-17 02:20

Reported

2024-10-17 02:22

Platform

win7-20240903-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe

"C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2652 -s 136

Network

N/A

Files

memory/2652-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2652-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

memory/2652-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/2652-4-0x0000000000400000-0x000000000047C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-17 02:20

Reported

2024-10-17 02:22

Platform

win10v2004-20241007-en

Max time kernel

139s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.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\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe

"C:\Users\Admin\AppData\Local\Temp\c4139579bd2c09fa3f876c15b04be33bd25e5c524fb687557771a07e99e22b9c.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3680 -ip 3680

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3680 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.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 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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 10.28.171.150.in-addr.arpa udp

Files

memory/3680-1-0x0000000000680000-0x0000000000780000-memory.dmp

memory/3680-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/3680-2-0x00000000004F0000-0x00000000004FB000-memory.dmp

memory/3680-5-0x00000000004F0000-0x00000000004FB000-memory.dmp

memory/3680-6-0x0000000000400000-0x000000000040B000-memory.dmp

memory/3680-4-0x0000000000400000-0x000000000047C000-memory.dmp