Overview

overview

10

Static

static

f12d033883...a6.exe

windows7_x64

10

f12d033883...a6.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    68s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-11-2020 09:02

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General

  • Target

    f12d033883d1077b25a9e36d36921b39e758f211e4d3b0fe92b2d32bc0b84ba6.exe

  • Size

    92KB

  • MD5

    8368ad17a88e93a6a78dfe1ca434f2c1

  • SHA1

    09b9ab6e3ef895a002db5c65bbd97c781b1101b7

  • SHA256

    f12d033883d1077b25a9e36d36921b39e758f211e4d3b0fe92b2d32bc0b84ba6

  • SHA512

    c24a6e1d8863d2aab083efb7149957c6cd3fad8e52259d6d4e1e1b1b11a484ac631b86f177de98fa32a2091bc5d0b96c21ee25230282ed28ac0888f3290ab451

Score
10/10
dharmapersistenceransomwarespyware

Malware Config

Extracted

Path

C:\ProgramData\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 0A458B4E 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.

    ransomwaredharma
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • 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.

    spyware
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Drops desktop.ini file(s) 70 IoCs
  • Drops file in System32 directory 2 IoCs
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 35357 IoCs
  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 570 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f12d033883d1077b25a9e36d36921b39e758f211e4d3b0fe92b2d32bc0b84ba6.exe
    "C:\Users\Admin\AppData\Local\Temp\f12d033883d1077b25a9e36d36921b39e758f211e4d3b0fe92b2d32bc0b84ba6.exe"
    1⤵
    • 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:584
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4032
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1068
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3336
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2644
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3360
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3192
        • 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:1404
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:2332
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Modifies service
            • Suspicious use of AdjustPrivilegeToken
            PID:196

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            MD5

            a21f216bf75def6e26d496cb43b8d5f6

            SHA1

            f52eb331c9d399a262222d08f4a19f201b9016fd

            SHA256

            33ad0a4479a3b7ae81a0a4f00b4dbf6d1d111d05279827212e0270d4b06973a5

            SHA512

            a44b5e28d2125ff07c8471a134487484c8a831bf6f9a6be628bd818f9c4524d691f8c6c28f5ccabbeda121e43f6e78fe608b7c6018741317e6b77eaf45ce062f

            Download Submit

          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            MD5

            a21f216bf75def6e26d496cb43b8d5f6

            SHA1

            f52eb331c9d399a262222d08f4a19f201b9016fd

            SHA256

            33ad0a4479a3b7ae81a0a4f00b4dbf6d1d111d05279827212e0270d4b06973a5

            SHA512

            a44b5e28d2125ff07c8471a134487484c8a831bf6f9a6be628bd818f9c4524d691f8c6c28f5ccabbeda121e43f6e78fe608b7c6018741317e6b77eaf45ce062f

            Download Submit

          • memory/1068-1-0x0000000000000000-mapping.dmp

            Download

          • memory/1404-6-0x0000000000000000-mapping.dmp

            Download

          • memory/2332-7-0x0000000000000000-mapping.dmp

            Download

          • memory/2644-3-0x0000000000000000-mapping.dmp

            Download

          • memory/3192-5-0x0000000000000000-mapping.dmp

            Download

          • memory/3336-2-0x0000000000000000-mapping.dmp

            Download

          • memory/3360-4-0x0000000000000000-mapping.dmp

            Download

          • memory/4032-0-0x0000000000000000-mapping.dmp

            Download