Analysis

  • max time kernel
    103s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220718-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-07-2022 13:34

General

  • Target

    82cc54a2d2620e98de7729569627dc794b4d53096f74e5b6fae2fdb227d63d1d.exe

  • Size

    335KB

  • MD5

    ea54ac4b573864a58e912bc1296e6b3d

  • SHA1

    cb0b48ec0e1c0da1b46e35c7fc7e498b6439a9ca

  • SHA256

    82cc54a2d2620e98de7729569627dc794b4d53096f74e5b6fae2fdb227d63d1d

  • SHA512

    712e6c66cd158ba9b112f3f00e612ea921b94c664f07a3124b45517d24a7eb6b75f9d0f4c3bc9f8c38af810f1659cefeec6af4dd4bcd3feba512848ed369e3ab

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] Write this ID in the title of your message EAF9F231 In case of no answer in 24 hours write us to theese e-mails: [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 us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) 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 5 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops startup file 4 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 1 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • 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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82cc54a2d2620e98de7729569627dc794b4d53096f74e5b6fae2fdb227d63d1d.exe
    "C:\Users\Admin\AppData\Local\Temp\82cc54a2d2620e98de7729569627dc794b4d53096f74e5b6fae2fdb227d63d1d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2576
    • C:\Users\Admin\AppData\Local\Temp\82cc54a2d2620e98de7729569627dc794b4d53096f74e5b6fae2fdb227d63d1d.exe
      "C:\Users\Admin\AppData\Local\Temp\82cc54a2d2620e98de7729569627dc794b4d53096f74e5b6fae2fdb227d63d1d.exe"
      2⤵
      • Modifies extensions of user files
      • 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:1932
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1572
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          4⤵
            PID:2592
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:2228
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
            PID:1952
            • C:\Windows\system32\mode.com
              mode con cp select=1251
              4⤵
                PID:2968
              • C:\Windows\system32\vssadmin.exe
                vssadmin delete shadows /all /quiet
                4⤵
                • Interacts with shadow copies
                PID:3512
            • C:\Windows\System32\mshta.exe
              "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
              3⤵
                PID:4172
              • C:\Windows\System32\mshta.exe
                "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
                3⤵
                  PID:1756
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:3360

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

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

              Filesize

              13KB

              MD5

              25baf0d8acf71989138262de3dfffffd

              SHA1

              39952519357633d66d461429be19140bcc5151d8

              SHA256

              b168cd5e21406b32208ed928a6d59afbc6c6c3a0fa733d647d381ec7cee667b2

              SHA512

              735c4c860034be1442c50430c405da4335d561144095dcd5c7b08b98d6424986793ee4ebfe12bdc8549f71d73828a062013e699b68c5c1d8809ee79bea551877

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

              Filesize

              13KB

              MD5

              25baf0d8acf71989138262de3dfffffd

              SHA1

              39952519357633d66d461429be19140bcc5151d8

              SHA256

              b168cd5e21406b32208ed928a6d59afbc6c6c3a0fa733d647d381ec7cee667b2

              SHA512

              735c4c860034be1442c50430c405da4335d561144095dcd5c7b08b98d6424986793ee4ebfe12bdc8549f71d73828a062013e699b68c5c1d8809ee79bea551877

            • memory/1572-137-0x0000000000000000-mapping.dmp

            • memory/1756-146-0x0000000000000000-mapping.dmp

            • memory/1932-139-0x0000000000CD0000-0x0000000000D3E200-memory.dmp

              Filesize

              440KB

            • memory/1932-136-0x0000000000400000-0x0000000000419000-memory.dmp

              Filesize

              100KB

            • memory/1932-138-0x0000000000400000-0x0000000000419000-memory.dmp

              Filesize

              100KB

            • memory/1932-132-0x0000000000000000-mapping.dmp

            • memory/1932-133-0x0000000000400000-0x0000000000419000-memory.dmp

              Filesize

              100KB

            • memory/1952-142-0x0000000000000000-mapping.dmp

            • memory/2228-141-0x0000000000000000-mapping.dmp

            • memory/2576-131-0x0000000000410000-0x0000000000413000-memory.dmp

              Filesize

              12KB

            • memory/2576-135-0x0000000000CD0000-0x0000000000D3E200-memory.dmp

              Filesize

              440KB

            • memory/2576-130-0x0000000000CD0000-0x0000000000D3E200-memory.dmp

              Filesize

              440KB

            • memory/2592-140-0x0000000000000000-mapping.dmp

            • memory/2968-143-0x0000000000000000-mapping.dmp

            • memory/3512-144-0x0000000000000000-mapping.dmp

            • memory/4172-145-0x0000000000000000-mapping.dmp