lockbit | 34ae59b7acc09c2e82625640cae82c5158b649db1418ddbaa24138b51f1722c5

Analysis

max time kernel
103s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2025, 13:38

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General

Target

LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32_pass.dll
Size

148KB
MD5

93046eb83f029ea9dc24522e88cfe75e
SHA1

fe73ccfbb8c3a124a884f19b5149224265ca59e9
SHA256

b530be92d5785dbf1446d898c04702b33c58b985a2a29f6131688badf6b6ee56
SHA512

666be29c79db61eaf6d291de9e3cf6a47438d961ede6b56edc6ff98ca6256341e39a9ca9f177244dc4e83e6c43599b0395c81647ce60c874d1b057994cef41f8
SSDEEP

3072:+R/3wDb7wo0h86nHjVzmGzzAAIGMaoz8o077WLm+BzuSeqIHGJLO:y3cwXhBDVzmYMAIdP0/kbzu9qImJy

Score

10^/10

lockbit discovery ransomware

Malware Config

Signatures

Lockbit
Ransomware family with multiple variants released since late 2019.
ransomware lockbit
Lockbit family
lockbit

Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs

resource	yara_rule
behavioral30/memory/3568-0-0x0000000010000000-0x0000000010029000-memory.dmp	family_lockbit

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5188 wrote to memory of 3568	5188	rundll32.exe	86
PID 5188 wrote to memory of 3568	5188	rundll32.exe	86
PID 5188 wrote to memory of 3568	5188	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3_Rundll32_pass.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5188
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3_Rundll32_pass.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3568-0-0x0000000010000000-0x0000000010029000-memory.dmp

Filesize
164KB

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