Overview

overview

10

Static

static

10

2024-06-11...ma.exe

windows7-x64

10

2024-06-11...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-06-2024 13:22

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General

  • Target

    2024-06-11_0458113d1cb6aa17af8bf06d235ce11a_crysis_dharma.exe

  • Size

    96KB

  • MD5

    0458113d1cb6aa17af8bf06d235ce11a

  • SHA1

    a00755fe2380dcd25ddf5c409451b4f58070e642

  • SHA256

    33cdee973d2377ac6f1857ee1dff731e5f794f399b626ebe8e6fae55d44af2de

  • SHA512

    440f2037ae604d10f587c08ff0140a9a051eb8a3a193901cb32f761cd354b17c0e8df8bef3daca566d848e64d12d9e1ece3d491e0dfdf3bb57c2d121c2b13a4a

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4A9I4yhotfH28NwqYSRVm4qgqFvlw0:ww+asqN5aW/hSD1RW8NwqJ+3Fa0

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

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 4DD58CFB 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 (523) files with added filename extension

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

    ransomware
  • 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.

    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
  • 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.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-11_0458113d1cb6aa17af8bf06d235ce11a_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_0458113d1cb6aa17af8bf06d235ce11a_crysis_dharma.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:2308
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1396
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1368
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:5452
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2360
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:8672
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:8928
        • 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:7292
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:5184
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:6736

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\ConvertFromWait.doc.id-4DD58CFB.[[email protected]].blm
            Filesize

            2.3MB

            MD5

            c407eb65227f36d5f8d8587fca726a41

            SHA1

            8a5a53c969e867467bfbaea19d273889e1cc8e4f

            SHA256

            7e9f67b386cf8700ed1caf7492afaae172bbf7d5377fbf852279f4cf39fab101

            SHA512

            84adf7c06e568f4a2844dfa52b1ee89b117150113dab982f5b37ca93ba036f63405eb8e9ee9f713d9efc5b8d56e761642a1f24a49f58526370a091c89ddff51f

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

            13KB

            MD5

            e0067f85f1de89d3b3f08b8f03645d71

            SHA1

            cc59b41f712cba12ec09c1d95a0e331951f58b92

            SHA256

            be47534ed95e4129e2eb299acad7aeb148cf3cb4034c7efde48f0f5a63c13fbc

            SHA512

            dafd08984f54611bf4f98703bcb933cb8460ada03220c6becc57fc6dea947dc30bd80d8be63daaea81228ffe69ee5eb1d2b7fe2ed82dd82337a63478759b46c5

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