Malware Analysis Report

2024-11-30 11:28

Sample ID 241121-jvha3avkbq
Target 8452b0a85e0822cd71de7a5705d7fe65ed541b91
SHA256 5506e7c24bfce20c4def5769d38b6089853d6bab3d4186bbe07a4e9572511023
Tags
lockbit discovery ransomware
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

5506e7c24bfce20c4def5769d38b6089853d6bab3d4186bbe07a4e9572511023

Threat Level: Known bad

The file 8452b0a85e0822cd71de7a5705d7fe65ed541b91 was found to be: Known bad.

Malicious Activity Summary

lockbit discovery ransomware

Lockbit family

Rule to detect Lockbit 3.0 ransomware Windows payload

Lockbit

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 07:59

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 07:59

Reported

2024-11-21 08:01

Platform

win7-20240903-en

Max time kernel

118s

Max time network

124s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8452b0a85e0822cd71de7a5705d7fe65ed541b91.dll,#1

Signatures

Lockbit

ransomware lockbit

Lockbit family

lockbit

Rule to detect Lockbit 3.0 ransomware Windows payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2956 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2956 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2956 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2956 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2956 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2956 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2956 wrote to memory of 1180 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8452b0a85e0822cd71de7a5705d7fe65ed541b91.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8452b0a85e0822cd71de7a5705d7fe65ed541b91.dll,#1

Network

N/A

Files

memory/1180-0-0x0000000010000000-0x0000000010027000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 07:59

Reported

2024-11-21 08:01

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

142s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8452b0a85e0822cd71de7a5705d7fe65ed541b91.dll,#1

Signatures

Lockbit

ransomware lockbit

Lockbit family

lockbit

Rule to detect Lockbit 3.0 ransomware Windows payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2524 wrote to memory of 3208 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 3208 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 3208 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8452b0a85e0822cd71de7a5705d7fe65ed541b91.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8452b0a85e0822cd71de7a5705d7fe65ed541b91.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 98.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 74.208.201.84.in-addr.arpa udp

Files

memory/3208-0-0x0000000010000000-0x0000000010027000-memory.dmp