Overview

overview

10

Static

static

10

2024-06-12...ma.exe

windows7-x64

10

2024-06-12...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    50s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 19:33

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General

  • Target

    2024-06-12_529c38d36f9cadaeb8fa81035ad9e20d_crysis_dharma.exe

  • Size

    92KB

  • MD5

    529c38d36f9cadaeb8fa81035ad9e20d

  • SHA1

    0a6ff232efd0e4d062203aa5ae9345ae098dda3c

  • SHA256

    f96888d52cc0159600c9f1fdd7cce1c6bb9a494cfef79c3f527a1acb44627eb8

  • SHA512

    e13a326c0c36e81b576f46a67858df26c3d863606ea6f76bfa48f5139e3e416d3320eac5718cfb585cfc99f89510e2950044a62f053262398b69c1d6e37fbe05

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4A3sB8Ey0uBl8Ge72p6nUaJTa:ww+asqN5aW/hSimEXOSj2p+TN

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 2AB7D651 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 (514) 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\2024-06-12_529c38d36f9cadaeb8fa81035ad9e20d_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_529c38d36f9cadaeb8fa81035ad9e20d_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:1704
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:744
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:624
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3240
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:8144
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:9808
        • 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:5924
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:7536
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4708

          Network

          MITRE ATT&CK Enterprise v15

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.id-2AB7D651.[[email protected]].gamma
            Filesize

            3.2MB

            MD5

            8ef96f78315dff98e6aef9ede916fe2f

            SHA1

            110c6ab558335bff48b882c37066806fd4c6fc5a

            SHA256

            160cfbf92602a2808a90d1bab7fcff4347de9c94230937c066fc2c2013a5233e

            SHA512

            ba8328c7602cfba7835be2cb2063f33ed9c094abdb4c9dd9302d36ff14415c28f50f6daa7c2cc8af4e0f80e6f162b605240ddf390610b43ef3585cb7582aae0b

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

            13KB

            MD5

            0864b7274d8e8d6174512b11728bc6db

            SHA1

            d254c31d0a5eae9d0d03f8f0097f4ad424ebc406

            SHA256

            933720c985ea3be6c9a05b32f92deaa2eeaaac01cf2a14741104b455064a986b

            SHA512

            57ca9e64a1582df7fabbdcd9de5c7c37c6e8aa0d9cb5397f1ff1e965e895ea92333c96883d7f18887ca90758a2bde2f789fdcb106fb697edb62ff1eb0dc57cd9

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