Malware Analysis Report

2025-06-15 20:11

Sample ID 230208-xfvjqsee36
Target LB3_pass.bin
SHA256 87184bbef239d3062c4af872fc5b43fb79622ce2e0c6072e40e3c3622b0e52d9
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

87184bbef239d3062c4af872fc5b43fb79622ce2e0c6072e40e3c3622b0e52d9

Threat Level: Known bad

The file LB3_pass.bin was found to be: Known bad.

Malicious Activity Summary

lockbit ransomware

Lockbit family

Rule to detect Lockbit 3.0 ransomware Windows payload

Lockbit

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-02-08 18:48

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

2023-02-08 18:48

Reported

2023-02-08 18:50

Platform

win7-20220812-en

Max time kernel

42s

Max time network

45s

Command Line

"C:\Users\Admin\AppData\Local\Temp\LB3_pass.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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\LB3_pass.exe

Processes

C:\Users\Admin\AppData\Local\Temp\LB3_pass.exe

"C:\Users\Admin\AppData\Local\Temp\LB3_pass.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 88

Network

N/A

Files

memory/836-54-0x0000000000000000-mapping.dmp

memory/1684-55-0x0000000000400000-0x0000000000429000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-02-08 18:48

Reported

2023-02-08 18:50

Platform

win10v2004-20221111-en

Max time kernel

137s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\LB3_pass.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.exe

"C:\Users\Admin\AppData\Local\Temp\LB3_pass.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4920 -ip 4920

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 276

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 512 -p 548 -ip 548

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 548 -s 1756

Network

Country Destination Domain Proto
US 93.184.221.240:80 tcp
NL 104.80.225.205:443 tcp
US 52.152.110.14:443 tcp
FR 51.11.192.48:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 52.152.110.14:443 tcp

Files

memory/4920-132-0x0000000000400000-0x0000000000429000-memory.dmp