Overview

overview

10

Static

static

dharma.exe

windows7-x64

10

dharma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    202s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2022 13:20

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General

  • Target

    dharma.exe

  • Size

    92KB

  • MD5

    ba67dd5ab7d6061704f2903573cec303

  • SHA1

    f7ca4a5d4c8d24083b86ff0a5b102ad68e0c9e34

  • SHA256

    6b1f4df924fb0e5067df18dfc5063d409f3bf2ee0d14b381b3f583e0d0da3ae5

  • SHA512

    291ab3acb7e7619243baced30ceed24b65f76a7edc9e2d1eb875ebdf590b3321c40ec1a3d44c109ab6a8a29ad43268780fcdd0448227f8f0c62ba7bbaadc7452

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AaEsY/ZlZI7teK7FiuiqhxVXf8lvLte23q9AH2:Qw+asqN5aW/hLnsqfcteK7VJAztb3qs

Score
10/10
dharmapersistenceransomwarespywarestealer

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 8E6C925C 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.

    spywarestealer
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • 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.

    ransomware
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\dharma.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:956
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1632
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:436
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1948
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:320
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1296
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:228
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          PID:1536
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1028
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        1⤵
          PID:1944
        • C:\Windows\system32\AUDIODG.EXE
          C:\Windows\system32\AUDIODG.EXE 0x50c
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1476

        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

          c54390d99633c976328b3d92ea74addb

          SHA1

          f9e6597c334675318a0cc2f937f641ba37485d7a

          SHA256

          a0394bacf4ffcdf4707770e67004bdefde5b680efb10e9cbae0f09ba47aa1c73

          SHA512

          01fe128d9dba21e367474f6a06a0024de8954b176c7f4ea341ac48c188a84d02acf2c42d5dcdf2af873dedba122aa699c738db7abd9f056cb904485e6f5e33a2

          Download Submit

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

          13KB

          MD5

          c54390d99633c976328b3d92ea74addb

          SHA1

          f9e6597c334675318a0cc2f937f641ba37485d7a

          SHA256

          a0394bacf4ffcdf4707770e67004bdefde5b680efb10e9cbae0f09ba47aa1c73

          SHA512

          01fe128d9dba21e367474f6a06a0024de8954b176c7f4ea341ac48c188a84d02acf2c42d5dcdf2af873dedba122aa699c738db7abd9f056cb904485e6f5e33a2

          Download Submit

        • memory/228-62-0x0000000000000000-mapping.dmp

          Download

        • memory/320-60-0x0000000000000000-mapping.dmp

          Download

        • memory/436-57-0x0000000000000000-mapping.dmp

          Download

        • memory/956-54-0x0000000076561000-0x0000000076563000-memory.dmp

          Filesize

          8KB

          Download

        • memory/1296-61-0x0000000000000000-mapping.dmp

          Download

        • memory/1536-63-0x0000000000000000-mapping.dmp

          Download

        • memory/1632-56-0x0000000000000000-mapping.dmp

          Download

        • memory/1944-58-0x000007FEFBF81000-0x000007FEFBF83000-memory.dmp

          Filesize

          8KB

          Download

        • memory/1948-59-0x0000000000000000-mapping.dmp

          Download

        • memory/2008-55-0x0000000000000000-mapping.dmp

          Download