Analysis

  • max time kernel
    74s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14-03-2024 04:20

General

  • Target

    b9d3d54532bcc21e9b05754ae0a2f81df5434e4dfd1fcbc840e5466ca38d3060.exe

  • Size

    959KB

  • MD5

    1e9e399b7a31cc85062cb039bae72a44

  • SHA1

    3702b81069cbb9251be59f85d25c54b55443ae72

  • SHA256

    b9d3d54532bcc21e9b05754ae0a2f81df5434e4dfd1fcbc840e5466ca38d3060

  • SHA512

    edf2c5cc11d564b40850e1741eec8477d90e55304d1bc08646c826f100877ae71057e8fbd4b1df164d67e891c826f30be1127d7d9a8dced09dafad7693031a9a

  • SSDEEP

    24576:uLjr3s2nScu1i1tz3f++5kRzFxk7rMxNeR1R9qpdxF:Ujrc2So1Ff+B3k796n

Malware Config

Extracted

Path

C:\Program Files\Java\jdk1.7.0_80\db\Restore-My-Files.txt

Ransom Note
LockBit 2.0 Ransomware Your data are stolen and encrypted The data will be published on TOR website http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion and https://bigblog.at if you do not pay the ransom You can contact us and decrypt one file for free on these TOR sites http://lockbitsup4yezcd5enk5unncx3zcy7kw6wllyqmiyhvanjj352jayid.onion http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion OR https://decoding.at Decryption ID: 83F5679388A5D93BC03F6722297EBD53
URLs

http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion

https://bigblog.at

http://lockbitsup4yezcd5enk5unncx3zcy7kw6wllyqmiyhvanjj352jayid.onion

http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion

https://decoding.at

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 22 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies registry class 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9d3d54532bcc21e9b05754ae0a2f81df5434e4dfd1fcbc840e5466ca38d3060.exe
    "C:\Users\Admin\AppData\Local\Temp\b9d3d54532bcc21e9b05754ae0a2f81df5434e4dfd1fcbc840e5466ca38d3060.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1100
    • 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
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1480
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1944
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1736
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:440
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:844
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping 127.0.0.7 -n 3 > Nul & fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\b9d3d54532bcc21e9b05754ae0a2f81df5434e4dfd1fcbc840e5466ca38d3060.exe" & Del /f /q "C:\Users\Admin\AppData\Local\Temp\b9d3d54532bcc21e9b05754ae0a2f81df5434e4dfd1fcbc840e5466ca38d3060.exe"
      2⤵
        PID:3516
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.7 -n 3
          3⤵
          • Runs ping.exe
          PID:3476
        • C:\Windows\SysWOW64\fsutil.exe
          fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\b9d3d54532bcc21e9b05754ae0a2f81df5434e4dfd1fcbc840e5466ca38d3060.exe"
          3⤵
            PID:3508
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2312

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files\Java\jdk1.7.0_80\db\Restore-My-Files.txt

        Filesize

        512B

        MD5

        f637250bab48a35b5c30eb0bcecd6d3a

        SHA1

        e8917f3538abeb5cb6e19c8e09d82fed1dd8bbff

        SHA256

        6d63f064ddd2ecf1094cbedc8842c2bd97ba2dab1ddb6a5ff5bcb5b9da9b4630

        SHA512

        2902d3511a70c1254b6b1d4f2b66b91bb208289b4d40da18f077b2098c07b634682efb7826f66e767fa5d428870319464191d29c143738aa14c177662d55e32c