Malware Analysis Report

2025-01-02 11:40

Sample ID 241010-xdds7swepm
Target 661d1fe9902109bb8bec961dcde8e944.exe
SHA256 6dae626cd4840dddef5d9581045fbd59b761fa0df26746e29f4d7994d816369a
Tags
smokeloader pub2 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

6dae626cd4840dddef5d9581045fbd59b761fa0df26746e29f4d7994d816369a

Threat Level: Known bad

The file 661d1fe9902109bb8bec961dcde8e944.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub2 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

2024-10-10 18:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-10 18:43

Reported

2024-10-10 18:46

Platform

win7-20240903-en

Max time kernel

122s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\661d1fe9902109bb8bec961dcde8e944.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\661d1fe9902109bb8bec961dcde8e944.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\661d1fe9902109bb8bec961dcde8e944.exe

"C:\Users\Admin\AppData\Local\Temp\661d1fe9902109bb8bec961dcde8e944.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2308 -s 168

Network

N/A

Files

memory/2308-1-0x0000000000560000-0x0000000000660000-memory.dmp

memory/2308-3-0x0000000000400000-0x000000000047A000-memory.dmp

memory/2308-2-0x0000000000400000-0x000000000040B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-10 18:43

Reported

2024-10-10 18:46

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\661d1fe9902109bb8bec961dcde8e944.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\661d1fe9902109bb8bec961dcde8e944.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\661d1fe9902109bb8bec961dcde8e944.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\661d1fe9902109bb8bec961dcde8e944.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\661d1fe9902109bb8bec961dcde8e944.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\661d1fe9902109bb8bec961dcde8e944.exe

"C:\Users\Admin\AppData\Local\Temp\661d1fe9902109bb8bec961dcde8e944.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1028 -ip 1028

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 464

Network

Country Destination Domain Proto
US 8.8.8.8:53 70.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/1028-2-0x0000000000400000-0x000000000040B000-memory.dmp

memory/1028-1-0x0000000000500000-0x0000000000600000-memory.dmp

memory/1028-3-0x0000000000400000-0x000000000047A000-memory.dmp

memory/1028-5-0x0000000000400000-0x000000000040B000-memory.dmp