Overview

overview

10

Static

static

10

2024-06-10...ma.exe

windows7-x64

10

2024-06-10...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10-06-2024 21:36

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General

  • Target

    2024-06-10_9962a4bfb27630ea2a5008549318e613_crysis_dharma.exe

  • Size

    92KB

  • MD5

    9962a4bfb27630ea2a5008549318e613

  • SHA1

    80544aee2d6693fc98492a001238a6423fe4ef4d

  • SHA256

    1e7f746974d98e4661adfdf9adba0cf338e99abf089e973427b81cc56b15eed1

  • SHA512

    b27d03d20aae41865c69a1e314a20eb045a0f1341d28fd3d5fdb8e9b1d7ebc4ce8901d496c9e7e1fcd4a7cbdaf079d2cd594cfbc02ee3c78ca08635059bda93b

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AxbEg/nGf+XRJBfDUDmd2Z8osGj5azkA0btyDh:ww+asqN5aW/hSog/oK7BnatawF2

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

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 8842F9D9 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 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (313) files with added filename extension

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

    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).

  • 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 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-10_9962a4bfb27630ea2a5008549318e613_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_9962a4bfb27630ea2a5008549318e613_crysis_dharma.exe"
    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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2092
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2208
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2964
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1376
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1664
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1188
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1760
        • 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:936
        • 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
          PID:2788
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:888

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-8842F9D9.[[email protected]].com
        Filesize

        23.5MB

        MD5

        83e1b45a11c7a264e8cf840ea5f001b1

        SHA1

        6f9c9796879a8e6104211cdbb1e00beaac18a3fd

        SHA256

        377bd121b4f0766097706ddf1809ad17fb59ff9372f47535441cb386b52c4ffa

        SHA512

        b8d74a8fa29bca5ead5872bde5a1bb14542926f2f7ed5ca6594ddd7450d52370aea57f14e7947a70ce81e8e3d86f743a0eb893a9176ed9ea1d59289ecd95b215

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

        13KB

        MD5

        21be81e7983a93b8e48fad0436eb113d

        SHA1

        fbdc98b37b9fbfb9651aa2410b87e06944c66971

        SHA256

        fed14df56a174db7d87a8fcf81e351becd45361b0fcca54999ddd1e454c49397

        SHA512

        7eaa8b9342526728d61596a5a3d9bd3dd90f1f5f2d41e087a98e12311ca23d40386ba36c69c6f84cecbfde76d0e7f849f057b9d163b1f9d11d3e70bf4020da3a

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      • memory/2788-20099-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

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