Malware Analysis Report

2024-11-13 15:00

Sample ID 240314-erp5aacd56
Target 4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a
SHA256 4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a
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

4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a

Threat Level: Known bad

The file 4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a was found to be: Known bad.

Malicious Activity Summary

lockbit ransomware

Lockbit family

Lockbit

Rule to detect Lockbit 3.0 ransomware Windows payload

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-14 04:10

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

2024-03-14 04:10

Reported

2024-03-14 04:13

Platform

win7-20240221-en

Max time kernel

118s

Max time network

130s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a.dll,#1

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2080 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2080 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2080 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2080 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2080 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2080 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2080 wrote to memory of 2928 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\4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a.dll,#1

Network

N/A

Files

memory/2928-0-0x0000000010000000-0x0000000010029000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-14 04:10

Reported

2024-03-14 04:13

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a.dll,#1

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4892 wrote to memory of 388 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4892 wrote to memory of 388 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4892 wrote to memory of 388 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\4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4129e2b6acc9fe06dca2b3e2012b219560e7587a9718269aac317d6550f6e70a.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 137.71.105.51.in-addr.arpa udp

Files

memory/388-0-0x0000000010000000-0x0000000010029000-memory.dmp