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
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-06-2024 19:53

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General

  • Target

    2024-06-11_e8a03122150328f2f5c73e116db303c3_crysis_dharma.exe

  • Size

    92KB

  • MD5

    e8a03122150328f2f5c73e116db303c3

  • SHA1

    4803dde39d4554d8816d4f37e21ba82a719174e9

  • SHA256

    494053dff6e83d226f39fe5263dec37aef43544829584e4e4d73b081644ad03b

  • SHA512

    a8f310e4ab60fa8fa379c82bf9d0fd848373cce7853192a19f0d0bc62d09678190560670f6145a272be54aa3e8c9e53cd2ed6e13c25ca6f5022597ecb4cef057

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AXJlLgoTgJKCcv6glLrRY7luI:ww+asqN5aW/hSpcoAKCcvllLdwuI

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 95BB8790 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 5 files for free decryption. The total size of files must be less than 10Mb (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\2024-06-11_e8a03122150328f2f5c73e116db303c3_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_e8a03122150328f2f5c73e116db303c3_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:1144
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3912
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:976
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2328
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:7048
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1576
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:8008
        • 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:5768
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:4364
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:6072

          Network

          MITRE ATT&CK Enterprise v15

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          Downloads

          • C:\Program Files\7-Zip\7z.dll.id-95BB8790.[[email protected]].arrow
            Filesize

            2.5MB

            MD5

            d0fd0afbaa2b69b795e08472411513db

            SHA1

            9cb0eac20a6caca437d1d080993c1cd2d4157dae

            SHA256

            298b89235b4db8bde6d7a6a5b2c207c82e7cba78be9ddc11203ec963fa208f31

            SHA512

            831888d5e01e15c25c371c2fb4514d015c72b5f25aa16584eaf32d7bb46443d5b72cd767206b9beb0cb7a4be8b886b9e15d11321458d406973dc75386f9e4feb

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

            13KB

            MD5

            2ba1f38d557f2e78f1c268399f5d65d8

            SHA1

            1cfa3380450cd4d52f39a19680ed438ae0e733ab

            SHA256

            f706a7ed6669e893b5829ebfbb4b9c690013203136a829502a318df19e9a49da

            SHA512

            b47c1dd0c0c462b58dde7fbb6e532e5998d40442de82d00280e09ca1b527bd0b66d8e3164defb869b6bdd6b7e0c2aa99b6e8df6f02bf578c12d7c39ac51e67d6

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