Malware Analysis Report

2025-01-02 05:31

Sample ID 240725-drd7cavfpq
Target 620b027b554f7183e3aa04222ef16300N.exe
SHA256 a40d8eac4b4f218111ea60be92d5fddbd5fe54b2d0ac8a875bc69be87e0abfbf
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

a40d8eac4b4f218111ea60be92d5fddbd5fe54b2d0ac8a875bc69be87e0abfbf

Threat Level: Known bad

The file 620b027b554f7183e3aa04222ef16300N.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor discovery trojan

SmokeLoader

Smokeloader family

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-25 03:14

Signatures

Smokeloader family

smokeloader

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-25 03:14

Reported

2024-07-25 03:16

Platform

win7-20240705-en

Max time kernel

15s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\620b027b554f7183e3aa04222ef16300N.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\620b027b554f7183e3aa04222ef16300N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\620b027b554f7183e3aa04222ef16300N.exe

"C:\Users\Admin\AppData\Local\Temp\620b027b554f7183e3aa04222ef16300N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2060 -s 36

Network

N/A

Files

memory/2060-0-0x0000000000400000-0x000000000040B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-25 03:14

Reported

2024-07-25 03:16

Platform

win10v2004-20240709-en

Max time kernel

114s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\620b027b554f7183e3aa04222ef16300N.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\620b027b554f7183e3aa04222ef16300N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\620b027b554f7183e3aa04222ef16300N.exe

"C:\Users\Admin\AppData\Local\Temp\620b027b554f7183e3aa04222ef16300N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3900 -ip 3900

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 224

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.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 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/3900-0-0x0000000000400000-0x000000000040B000-memory.dmp