Overview

overview

10

Static

static

b3175331_b...is.exe

windows7_x64

10

b3175331_b...is.exe

windows10_x64

10

Analysis

  • max time kernel
    30s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    06-05-2021 15:08

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

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:\Program Files\7-Zip\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/?8B87A11BCEAB4AA5A78753A51BA078A4 | 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/?8B87A11BCEAB4AA5A78753A51BA078A4 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/?8B87A11BCEAB4AA5A78753A51BA078A4

http://lockbitks2tvnmwk.onion/?8B87A11BCEAB4AA5A78753A51BA078A4

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/?8B87A11BCEAB4AA5A78753A51BA078A4 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/?8B87A11BCEAB4AA5A78753A51BA078A4 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/?8B87A11BCEAB4AA5A78753A51BA078A4

http://lockbitks2tvnmwk.onion/?8B87A11BCEAB4AA5A78753A51BA078A4

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 4 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • 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.

  • 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 Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 35 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
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Modifies Control Panel
    • 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 & wbadmin delete catalog -quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1704
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1908
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:900
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1768
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:1888
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\LockBit-note.hta"
      2⤵
      • Modifies Internet Explorer settings
      PID:532
    • 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⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:3080
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.7 -n 3
        3⤵
        • Runs ping.exe
        PID:3116
      • C:\Windows\SysWOW64\fsutil.exe
        fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\b3175331_by_Libranalysis.exe"
        3⤵
          PID:3252
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1568
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1612
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:300
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:1528

        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

        3
        T1112

        Credential Access

        Discovery

        System Information Discovery

        1
        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

          4f0bef795e2f91849a1f5cd1ea71ce44

          SHA1

          254dd3489d207f061a1b82ac33b4dd52c1511181

          SHA256

          52c3d4c07dd7b62c4dbf998c0f8a1a5f55d5ddc37f9aa141b7f6f0c5483f3179

          SHA512

          f40efff91b9152aca092f2deec505d406c6560f4a6bd4b9feb8153a94fe7f662929c97bd694f7819b785ac219db3c701a9c23465318203cd0ad0f3cdb8f6b5ba

          Download Submit
        • memory/532-68-0x0000000000000000-mapping.dmp
          Download
        • memory/900-64-0x0000000000000000-mapping.dmp
          Download
        • memory/1100-60-0x00000000757D1000-0x00000000757D3000-memory.dmp
          Filesize

          8KB

          Download
        • memory/1704-62-0x0000000000000000-mapping.dmp
          Download
        • memory/1736-61-0x0000000000000000-mapping.dmp
          Download
        • memory/1768-65-0x0000000000000000-mapping.dmp
          Download
        • memory/1888-66-0x0000000000000000-mapping.dmp
          Download
        • memory/1888-67-0x000007FEFBDA1000-0x000007FEFBDA3000-memory.dmp
          Filesize

          8KB

          Download
        • memory/1908-63-0x0000000000000000-mapping.dmp
          Download
        • memory/3080-69-0x0000000000000000-mapping.dmp
          Download
        • memory/3116-70-0x0000000000000000-mapping.dmp
          Download
        • memory/3252-72-0x0000000000000000-mapping.dmp
          Download