Overview

overview

10

Static

static

3

2023-12-14...ma.exe

windows7-x64

10

2023-12-14...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2023 05:11

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General

  • Target

    2023-12-14_d4726540ef9e6bfc0821650db0e62da3_crysis_dharma.exe

  • Size

    92KB

  • MD5

    d4726540ef9e6bfc0821650db0e62da3

  • SHA1

    8881bc14da432189e8ae2494c54bb9db5690b06b

  • SHA256

    f06eec18f16bebed895404d4d77863a2f157cf12695df1b0710f865dc7a5be4b

  • SHA512

    a52cce09463860f8e2be58c9dfbaab56cc00f9fac95500a0f380b0466ff91fcd838bc835ae2c5faba4028bbe174c215fd976f777c4adfa1b2d3e1460386ea531

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AKBYqCWby6/sAemJnmpKoH8VQ27MjCiF:Qw+asqN5aW/hLyBCWW6/fem4pfUQ27M3

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
We downloaded to our servers and encrypted all your databases and personal information! If you do not write to us within 24 hours, we will start publishing and selling your data on the darknet on hacker sites and offer the information to your competitors email us: [email protected] YOUR ID If you haven't heard back within 24 hours, write to this email: [email protected] IMPORTANT INFORMATION! Keep in mind that once your data appears on our leak site,it could be bought by your competitors at any second, so don't hesitate for a long time.The sooner you pay the ransom, the sooner your company will be safe.. Guarantee:If we don't provide you with a decryptor or delete your data after you pay,no one will pay us in the future. We value our reputation. Guarantee key:To prove that the decryption key exists, we can test the file (not the database and backup) for free. Do not try to decrypt your data using third party software, it may cause permanent data loss. Don't go to recovery companies - they are essentially just middlemen.Decryption of your files with the help of third parties may cause increased price (they add their fee to our) we're the only ones who have the decryption keys.

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
  • Renames multiple (312) 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\2023-12-14_d4726540ef9e6bfc0821650db0e62da3_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-12-14_d4726540ef9e6bfc0821650db0e62da3_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:2164
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2372
        • 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:1716
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3004
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2124
        • 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:1804
        • 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:1812
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:936

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.msi.id-223DF7B9.[downloaded@file].data
        Filesize

        3.6MB

        MD5

        32bfa9aad09b0488ecc0c9e7df4eea0d

        SHA1

        a49f673d537563fdf7d9c5da72c7549001dc9707

        SHA256

        fb2c9c5ce1771231baa21b4a8c9e6f1b5bde3360d63536df0d01d378c83a5156

        SHA512

        ec1d743e72569f0215708bc3c4438295128b273be938ebbea3123ce51da1a4d98564b0c5dd5e526eb7d2f425765a56c3e24ade408d2c0c1fd5d05046129425b9

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

        7KB

        MD5

        8eafa1319d12915618c1357c18d2a88c

        SHA1

        1a8770fd9cb36a255f0b39e3a93693ee7d81ff77

        SHA256

        9e4c764b9380ef5ab7a6b3b784bf9e527186e462e66aadd70faf6a9cd852ff4f

        SHA512

        b17d8218e128d3650af4db24aa5089d0071915c8e8183c799ee4806641a98520e1148a1f072b64a2c463e0a940351907daebad4633fe03bd84c32de112ee67d0

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      • memory/1804-20181-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

        Download