Resubmissions

25-10-2023 11:12

231025-nbccxsgh31 10

25-10-2023 10:06

231025-l49g1sgf2v 10

Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-10-2023 11:12

General

  • Target

    1.exe

  • Size

    92KB

  • MD5

    32e3001eb783b182de6b45e5f729d3ba

  • SHA1

    896a8963fb57c10d30c05b56465401babe48ff0b

  • SHA256

    2210baa7b596879b413965c17f9f33dbf698ac183b2b82329d397c73dee5fc3d

  • SHA512

    27572a35b5f21e5217012b93ebe03e59d5dfeea6bd2446316d2e74230b961e6378ae700cd4d78b0033e516adc9f494e8520c01170f74a401204cc84337a92e65

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4Ax5ALyqEIxS6CRxVcFuVWZp17i:Qw+asqN5aW/hLL5LqrxSbRYE

Malware Config

Extracted

Path

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

Ransom Note
We downloaded to our servers and encrypted all your databases and personal information! If you do not write to us within 24 hours, we will start publishing and selling your data on the darknet on hacker sites and offer the information to your competitors email us: [email protected] YOUR ID If you haven't heard back within 24 hours, write to this email: [email protected] IMPORTANT INFORMATION! Keep in mind that once your data appears on our leak site,it could be bought by your competitors at any second, so don't hesitate for a long time.The sooner you pay the ransom, the sooner your company will be safe.. Guarantee:If we don't provide you with a decryptor or delete your data after you pay,no one will pay us in the future. We value our reputation. Guarantee key:To prove that the decryption key exists, we can test the file (not the database and backup) for free. Do not try to decrypt your data using third party software, it may cause permanent data loss. Don't go to recovery companies - they are essentially just middlemen.Decryption of your files with the help of third parties may cause increased price (they add their fee to our) we're the only ones who have the decryption keys.

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.

  • Renames multiple (458) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • 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).

  • 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\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    1⤵
    • 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:4560
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1548
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1476
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3988
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5980
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3852
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:4036
        • 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:7204
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:876
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3164

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files\Google\Chrome\Application\106.0.5249.119\icudtl.dat.id-D3F6F502.[[email protected]].2023

            Filesize

            10.7MB

            MD5

            b89c1e0d1a5e6615fe2bd9dcfd8e2898

            SHA1

            810ebb737c75f6932056c2fd53cc2822584ac8c1

            SHA256

            fe637c79b866bacebeb3850038a97f61abcd020e5ec09706bdd169f871e30d6d

            SHA512

            facf7372b7b52b08a718c667da8ec470689e751152fdf020c803eb665ae270e10914a17091cd1e031ceba58a977b6c09474ba132541a16576d1f253fe2b25d91

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

            Filesize

            7KB

            MD5

            b3058ab039ff93f82cb95cef04ff129e

            SHA1

            cac1686f92a0cfccd1712441e836ee551172a935

            SHA256

            aaf2f4a2f408fb412cbd28c673d6ec6e9ccfb0998a94edba745d4bd0e328d7f9

            SHA512

            f374944b4a2f9b6e656ee6ac186340dc8b9e66e8242bd8af304c20d1eb681d75418291816e285741119f1bc5a04c03c3799c401ca309065554ca28e10ee05756

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

            Filesize

            7KB

            MD5

            b3058ab039ff93f82cb95cef04ff129e

            SHA1

            cac1686f92a0cfccd1712441e836ee551172a935

            SHA256

            aaf2f4a2f408fb412cbd28c673d6ec6e9ccfb0998a94edba745d4bd0e328d7f9

            SHA512

            f374944b4a2f9b6e656ee6ac186340dc8b9e66e8242bd8af304c20d1eb681d75418291816e285741119f1bc5a04c03c3799c401ca309065554ca28e10ee05756