Analysis

  • max time kernel
    152s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-04-2023 18:28

General

  • Target

    scandy.exe

  • Size

    88KB

  • MD5

    56299609780e2286ccc2cf5857d531e8

  • SHA1

    ef7baf17905784df491641906645f00f73eff1d1

  • SHA256

    ab5be9e6911b43f0974e01dabec772b968274d9b5ea39ba2ad7cd294056e5d09

  • SHA512

    a44053d0c810448adddcd17e51682e43d51710de948644c82a141a1a8104cacedd44a274f13ea79de89f5cdfbb0e436791565baad1552d9853a5a94b446398cb

  • SSDEEP

    1536:7vie0XQsxILOW3Sm9S4AndhgXCpC1VYEzcM5BD11e0z:OeBsxInSNnhgX4CzwM

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send to us up to 3 files for free decryption. Please note that files must NOT contain valuable information and their total size must be less than 10Mb. How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data 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) or you can become a victim of a scam.

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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\scandy.exe
    "C:\Users\Admin\AppData\Local\Temp\scandy.exe"
    1⤵
    • Modifies extensions of user files
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3428
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3988
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2712
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:7088
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:6600
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:6896
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
            PID:620
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:6656
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:5068

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe.[[email protected]].wallet

            Filesize

            2.9MB

            MD5

            7baf9ad1aada1b406a2e744b10525a31

            SHA1

            1bca076b01df5e95a480edfbac6a15b9bd0d1de2

            SHA256

            cac79c9a292a49243448bc3bcc55ba665a4a432b5c743f3914241704a6b8d486

            SHA512

            6cfdfc593e4cf48fc60067be1ad0e45a0e9aba40dd8b44f931d64e59f4347ec1eb5ce1505359888eb46d8d8f7f2afc7caca3f5372553d4cde53aecbb5e18c0d2

          • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

            Filesize

            13KB

            MD5

            2df5a461498e11a117a2513f22d203b6

            SHA1

            96eecf1b74ef2650be07e062eb7b2597d9c39bc2

            SHA256

            5bcef0258fa0c6a1084ad9824af8aac4ea2a55b8b3597bcd84ba31bfd0ddf551

            SHA512

            e6d8dabb38b666fb99b6409d35d7a6eab25d1802d74a8260cc1d505647d59b98f296d4b869099f96b806883cc611a12e2a9afbff65726dd7f1643d26cc1d0862

          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

            Filesize

            13KB

            MD5

            2df5a461498e11a117a2513f22d203b6

            SHA1

            96eecf1b74ef2650be07e062eb7b2597d9c39bc2

            SHA256

            5bcef0258fa0c6a1084ad9824af8aac4ea2a55b8b3597bcd84ba31bfd0ddf551

            SHA512

            e6d8dabb38b666fb99b6409d35d7a6eab25d1802d74a8260cc1d505647d59b98f296d4b869099f96b806883cc611a12e2a9afbff65726dd7f1643d26cc1d0862