Resubmissions

25/03/2025, 13:12

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25/03/2025, 13:09

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25/03/2025, 13:05

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25/03/2025, 12:55

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05/02/2025, 11:16

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16/07/2024, 08:54

240716-kt64gavakp 10

Analysis

  • max time kernel
    1s
  • max time network
    18s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2025, 12:55

General

  • Target

    34c392448fc0818278cd19bb0841adf573e967be8a0f73bb42bb367a5835b6ea.exe

  • Size

    92KB

  • MD5

    21c2b2d0bfc15b3d4bc72263f9db5547

  • SHA1

    9f65f98ae2b418425a1d98b8d86bef88edab4d7c

  • SHA256

    34c392448fc0818278cd19bb0841adf573e967be8a0f73bb42bb367a5835b6ea

  • SHA512

    aeeb64dc1130f6e5ccf6ab9abedf01e2a59e149f4897a44b02c32f816ddd1d1698a59447f7ce03dab966972f7714977b49f4b7e0fd258b0bedd936ac1926060a

  • SSDEEP

    1536:lBwl+KXpsqN5vlwWYyhY9S4AE4SLlaSXrgKcQ48bcWHpOZ2yr+e72eIGZZyb1j:vw+asqN5aW/hL6dhamQoBU4yTi17j

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 4A7B6ACA 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.

  • Dharma family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 3 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Interacts with shadow copies 3 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\34c392448fc0818278cd19bb0841adf573e967be8a0f73bb42bb367a5835b6ea.exe
    C:\Users\Admin\AppData\Local\Temp\34c392448fc0818278cd19bb0841adf573e967be8a0f73bb42bb367a5835b6ea.exe bcdedit /set shutdown /r /f /t 2
    1⤵
    • 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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
        PID:5308
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3236
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:5740
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          2⤵
            PID:3960
            • C:\Windows\system32\mode.com
              mode con cp select=1251
              3⤵
                PID:1136
              • C:\Windows\system32\vssadmin.exe
                vssadmin delete shadows /all /quiet
                3⤵
                • Interacts with shadow copies
                PID:10176
            • 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:7216
              • C:\Windows\System32\mshta.exe
                "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
                2⤵
                  PID:5768
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                  PID:6264

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-4A7B6ACA.[[email protected]].harma

                  Filesize

                  2.7MB

                  MD5

                  554bf9f679c828845b7392f55e7bd636

                  SHA1

                  7632b8601be6e4531f5dc915514c3f178062b677

                  SHA256

                  4cf516e0e43500b89164ffb15ed94b98bfd82f18e49b7974d9f9f6db79d84565

                  SHA512

                  012b22d43c73bfb3d8f9666b1f4659e77be3f812a3613e7a00f6d85ad642d42dc476feda3685c6bd015351599de87942cee4396213286811576bc108852aecec

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

                  Filesize

                  13KB

                  MD5

                  c42a8d39adebdcf43e64398286861643

                  SHA1

                  1c8ae2d6f44b41f386e7b322ab9d5e505114844b

                  SHA256

                  3cba2bd860faacc12fe806d82f104e416c4522ac83854a98c2ba1ef2c3038843

                  SHA512

                  ae30accbe334ad1326d33c050fd6fe7c618ed15c387018828eabda2411637a869e4d7bf43ac18e64065788fc209a623a3eb05bab0988a5d650f9e9e0bae40d2b