lockbit | b094665ec4cdca6d8e9b9f63d8d71b1b9263eda12f1fdd1d8aa820dbf4c231f6

Analysis

max time kernel
149s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15-03-2024 20:56

Target

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

Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs

resource	yara_rule
behavioral12/memory/1912-0-0x0000000010000000-0x0000000010029000-memory.dmp	family_lockbit

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1412 wrote to memory of 1912	1412	rundll32.exe	95
PID 1412 wrote to memory of 1912	1412	rundll32.exe	95
PID 1412 wrote to memory of 1912	1412	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Build\LB3_Rundll32_pass.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Build\LB3_Rundll32_pass.dll,#1
  2⤵
  PID:1912

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
1⤵
PID:1956

memory/1912-0-0x0000000010000000-0x0000000010029000-memory.dmp

Filesize
164KB

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