Malware Analysis Report

2024-12-08 01:26

Sample ID 240722-eqzmbsyfnj
Target 843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd
SHA256 843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd
Tags
smokeloader backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd

Threat Level: Known bad

The file 843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor trojan

SmokeLoader

Smokeloader family

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-22 04:09

Signatures

Smokeloader family

smokeloader

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-22 04:09

Reported

2024-07-22 04:12

Platform

win7-20240704-en

Max time kernel

122s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd.exe

"C:\Users\Admin\AppData\Local\Temp\843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 36

Network

N/A

Files

memory/2728-0-0x0000000000400000-0x000000000040B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-22 04:09

Reported

2024-07-22 04:11

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Processes

C:\Users\Admin\AppData\Local\Temp\843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd.exe

"C:\Users\Admin\AppData\Local\Temp\843b183a8a7c66c928f51806eafc5d7dc42efa8b7d9e3c61b7d5130e305096bd.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4716 -ip 4716

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 224

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
IE 52.111.236.23:443 tcp
US 8.8.8.8:53 43.229.111.52.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/4716-0-0x0000000000400000-0x000000000040B000-memory.dmp