Analysis

  • max time kernel
    4294218s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220310-en
  • submitted
    15-03-2022 20:26

General

  • Target

    dd8d547af63fe3934931c7113af5eff72147fb55f0dc633a1bd0af9bc621c83d.exe

  • Size

    629KB

  • MD5

    5982636f09b4cf37916955e91e0ad63b

  • SHA1

    660ec44bf0a329125b838765413343eebf091921

  • SHA256

    dd8d547af63fe3934931c7113af5eff72147fb55f0dc633a1bd0af9bc621c83d

  • SHA512

    f5b80194bb3919a2e1de83ce78467701a7d7ce864aca19d3d7379090dcbb5ad3e757404350a0de0a44ef440621c1507742a094f23fe59dbc0aab50a3b32b01f3

Malware Config

Extracted

Path

C:\Program Files\7-Zip\Lang\Restore-My-Files.txt

Family

lockbit

Ransom Note
All your important files are encrypted! Any attempts to restore your files with the thrid-party software will be fatal for your files! RESTORE YOU DATA POSIBLE ONLY BUYING private key from us. There is only one way to get your files back: 1) Through a standard browser(FireFox, Chrome, Edge, Opera) | 1. Open link http://lockbit-decryptor.top/?9B7FDA8D33FEC3F9B0E237B22759EFD4 | 2. Follow the instructions on this page 2) Through a Tor Browser - recommended | 1. Download Tor browser - https://www.torproject.org/ and install it. | 2. Open link in TOR browser - http://lockbitks2tvnmwk.onion/?9B7FDA8D33FEC3F9B0E237B22759EFD4 This link only works in Tor Browser! | 3. Follow the instructions on this page ### Attention! ### # lockbit-decryptor.top may be blocked. We recommend using a Tor browser to access the site # Do not rename encrypted files. # Do not try to decrypt using third party software, it may cause permanent data loss. # Decryption of your files with the help of third parties may cause increased price(they add their fee to our). # Tor Browser may be blocked in your country or corporate network. Use https://bridges.torproject.org or use Tor Browser over VPN. # Tor Browser user manual https://tb-manual.torproject.org/about
URLs

http://lockbit-decryptor.top/?9B7FDA8D33FEC3F9B0E237B22759EFD4

http://lockbitks2tvnmwk.onion/?9B7FDA8D33FEC3F9B0E237B22759EFD4

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd8d547af63fe3934931c7113af5eff72147fb55f0dc633a1bd0af9bc621c83d.exe
    "C:\Users\Admin\AppData\Local\Temp\dd8d547af63fe3934931c7113af5eff72147fb55f0dc633a1bd0af9bc621c83d.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1924
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1124
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2032

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1564-54-0x0000000000220000-0x0000000000246000-memory.dmp
    Filesize

    152KB

  • memory/1564-55-0x0000000075D01000-0x0000000075D03000-memory.dmp
    Filesize

    8KB

  • memory/1564-56-0x0000000000400000-0x00000000004A7000-memory.dmp
    Filesize

    668KB