Overview

overview

10

Static

static

b3175331_b...is.exe

windows7_x64

10

b3175331_b...is.exe

windows10_x64

10

Analysis

  • max time kernel
    125s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    06-05-2021 15:08

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General

  • Target

    b3175331_by_Libranalysis.exe

  • Size

    146KB

  • MD5

    b3175331ae74ee277e94d3e0bc982bf4

  • SHA1

    db0731d693a1ac46706825dcb91193ae4efec482

  • SHA256

    d5ea463e0719ee2d1705ff305cdd8529bd2ff23dde79c502c4f478937a91f874

  • SHA512

    38318d3e6461b72c6111e96c4d5aab830e5824b8ef762360d894ea67d9e16b12d54087f7f0fcc8c579824753df039b137294ba6abab0171e294f2c538cc6fa8a

Score
10/10
lockbitevasionpersistenceransomware

Malware Config

Extracted

Path

C:\odt\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/?8B87A11BCEAB4AA5CFA3F7DE8D570CD4 | 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/?8B87A11BCEAB4AA5CFA3F7DE8D570CD4 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/?8B87A11BCEAB4AA5CFA3F7DE8D570CD4

http://lockbitks2tvnmwk.onion/?8B87A11BCEAB4AA5CFA3F7DE8D570CD4

Extracted

Path

C:\Users\Admin\Desktop\LockBit-note.hta

Ransom Note
Lock BIT 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: Through a standard browser Open link - http://lockbit-decryptor.top/?8B87A11BCEAB4AA5CFA3F7DE8D570CD4 Follow the instructions on this page Through a recommended Download Tor Browser - https://www.torproject.org/ and install it. Open link in Tor Browser - http://lockbitks2tvnmwk.onion/?8B87A11BCEAB4AA5CFA3F7DE8D570CD4 This link only works in Tor Browser! Follow the instructions on this page Lockbit-decryptor.com 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/?8B87A11BCEAB4AA5CFA3F7DE8D570CD4

http://lockbitks2tvnmwk.onion/?8B87A11BCEAB4AA5CFA3F7DE8D570CD4

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

    ransomwarelockbit
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • 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.

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3175331_by_Libranalysis.exe
    "C:\Users\Admin\AppData\Local\Temp\b3175331_by_Libranalysis.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:424
    • 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:2492
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4056
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2144
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:580
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3812
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:2056
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\LockBit-note.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
      2⤵
        PID:5092
      • 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\b3175331_by_Libranalysis.exe" & Del /f /q "C:\Users\Admin\AppData\Local\Temp\b3175331_by_Libranalysis.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3888
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.7 -n 3
          3⤵
          • Runs ping.exe
          PID:5040
        • C:\Windows\SysWOW64\fsutil.exe
          fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\b3175331_by_Libranalysis.exe"
          3⤵
            PID:1388
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2720
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3828
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:196
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
          • Checks SCSI registry key(s)
          PID:1328

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Initial Access

        Execution

        Command-Line Interface

        1
        T1059

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Privilege Escalation

        Defense Evasion

        File Deletion

        3
        T1107

        Modify Registry

        2
        T1112

        Credential Access

        Discovery

        Query Registry

        2
        T1012

        Peripheral Device Discovery

        2
        T1120

        System Information Discovery

        3
        T1082

        Remote System Discovery

        1
        T1018

        Lateral Movement

        Collection

        Exfiltration

        Command and Control

        Impact

        Inhibit System Recovery

        4
        T1490

        Defacement

        1
        T1491

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\Desktop\LockBit-note.hta
          MD5

          c1da4c86f3188a914625e459b3cd5772

          SHA1

          1ad9bf25c5dddc2e9c707284134ce12051a19604

          SHA256

          74a48bf891688818fd3e8b21765ac90ae4a4f1d42aba8af81587d295a1df55fb

          SHA512

          394cc933db3f64e58b4386e90bc49fe8918a81bdbda6df8a556560faf0d8306d3c81e98869336a4be108e8ce48fffeffbfa5a133e3860f1f802db40187fe5af5

          Download Submit
        • memory/580-117-0x0000000000000000-mapping.dmp
          Download
        • memory/1388-124-0x0000000000000000-mapping.dmp
          Download
        • memory/2056-119-0x0000000000000000-mapping.dmp
          Download
        • memory/2144-116-0x0000000000000000-mapping.dmp
          Download
        • memory/2492-114-0x0000000000000000-mapping.dmp
          Download
        • memory/3812-118-0x0000000000000000-mapping.dmp
          Download
        • memory/3888-121-0x0000000000000000-mapping.dmp
          Download
        • memory/4056-115-0x0000000000000000-mapping.dmp
          Download
        • memory/5040-122-0x0000000000000000-mapping.dmp
          Download
        • memory/5092-120-0x0000000000000000-mapping.dmp
          Download