Analysis

  • max time kernel
    172s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2022 18:05

General

  • Target

    5e6c71ec5cf1c594d5a30aaf7c939f1a4d1f8c719be439c518e39b1be4d364ec.exe

  • Size

    42KB

  • MD5

    fb58b644c3aafb587a2a377018b07b0f

  • SHA1

    9d58212ae8b2722dde38903af0c4792a79133f31

  • SHA256

    5e6c71ec5cf1c594d5a30aaf7c939f1a4d1f8c719be439c518e39b1be4d364ec

  • SHA512

    a4d9af4c0833fb844f9d5a8f98f5749038140678b94f39f5fcf65b49ddec692e230bd29ee96b7a95987da12fef2d93f564512d86993910fe0471e83b0674d6b8

  • SSDEEP

    768:MO1oR/IVS1RzK4wbs+D/SIJX+ZZ1SQQwZuIOPzDYMeWFqtIxroMG:M0S1FKnDtkuIm/gyxr0

Score
10/10

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\+README-WARNING+.txt

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted. The file structure was not damaged, we did everything possible so that this could not happen. .2. Q: How to recover files? A: If you wish to decrypt your files you will need to pay us. .3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee. .4. Q: How to contact with you? A: You can write us to our mailbox: [email protected] .5. Q: How will the decryption process proceed after payment? A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. .6. Q: If I don�t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money. :::BEWARE::: DON'T try to change encrypted files by yourself! If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files! Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e6c71ec5cf1c594d5a30aaf7c939f1a4d1f8c719be439c518e39b1be4d364ec.exe
    "C:\Users\Admin\AppData\Local\Temp\5e6c71ec5cf1c594d5a30aaf7c939f1a4d1f8c719be439c518e39b1be4d364ec.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4752
    • C:\Users\Admin\AppData\Local\Temp\5e6c71ec5cf1c594d5a30aaf7c939f1a4d1f8c719be439c518e39b1be4d364ec.exe
      "C:\Users\Admin\AppData\Local\Temp\5e6c71ec5cf1c594d5a30aaf7c939f1a4d1f8c719be439c518e39b1be4d364ec.exe" n4752
      2⤵
        PID:3816
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1172
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:64
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:4140
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3480
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
      1⤵
      • Suspicious use of NtCreateUserProcessOtherParentProcess
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1364
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4408
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:100
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:344
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:3452
      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
        1⤵
        • Drops file in System32 directory
        • Checks processor information in registry
        • Enumerates system info in registry
        • Modifies data under HKEY_USERS
        • Suspicious use of SetWindowsHookEx
        PID:4520

      Network

      MITRE ATT&CK Enterprise v6

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