Malware Analysis Report

2025-06-15 20:11

Sample ID 230310-mbzb1sed7y
Target LB3_pass_71F85B50D4CE6F88.exe
SHA256 66f7a4ea923ecc8cdaa74b930cbd103b7170e06585c3f4dbfb7c113e05beaa02
Tags
lockbit ransomware
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

66f7a4ea923ecc8cdaa74b930cbd103b7170e06585c3f4dbfb7c113e05beaa02

Threat Level: Known bad

The file LB3_pass_71F85B50D4CE6F88.exe was found to be: Known bad.

Malicious Activity Summary

lockbit ransomware

Rule to detect Lockbit 3.0 ransomware Windows payload

Lockbit

Lockbit family

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-03-10 10:18

Signatures

Lockbit family

lockbit

Rule to detect Lockbit 3.0 ransomware Windows payload

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-10 10:18

Reported

2023-03-10 10:20

Platform

win7-20230220-en

Max time kernel

30s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\LB3_pass_71F85B50D4CE6F88.exe"

Signatures

Lockbit

ransomware lockbit

Rule to detect Lockbit 3.0 ransomware Windows payload

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

Processes

C:\Users\Admin\AppData\Local\Temp\LB3_pass_71F85B50D4CE6F88.exe

"C:\Users\Admin\AppData\Local\Temp\LB3_pass_71F85B50D4CE6F88.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 88

Network

N/A

Files

memory/2000-54-0x0000000000400000-0x0000000000427000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-10 10:18

Reported

2023-03-10 10:20

Platform

win10v2004-20230220-en

Max time kernel

79s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\LB3_pass_71F85B50D4CE6F88.exe"

Signatures

Lockbit

ransomware lockbit

Rule to detect Lockbit 3.0 ransomware Windows payload

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

Processes

C:\Users\Admin\AppData\Local\Temp\LB3_pass_71F85B50D4CE6F88.exe

"C:\Users\Admin\AppData\Local\Temp\LB3_pass_71F85B50D4CE6F88.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4088 -ip 4088

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4088 -s 264

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 199.176.139.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 52.152.108.96:443 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 210.81.184.52.in-addr.arpa udp
NL 52.178.17.3:443 tcp
US 8.8.8.8:53 177.238.32.23.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 151.122.125.40.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 0.77.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
NL 173.223.113.164:443 tcp

Files

memory/4088-133-0x0000000000400000-0x0000000000427000-memory.dmp

memory/4088-134-0x0000000000400000-0x0000000000427000-memory.dmp