Overview

overview

10

Static

static

10

2024-06-13...ma.exe

windows7-x64

10

2024-06-13...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-06-2024 06:40

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General

  • Target

    2024-06-13_e3a0bcbc419370c4ea0fd4c6a0d19482_crysis_dharma.exe

  • Size

    92KB

  • MD5

    e3a0bcbc419370c4ea0fd4c6a0d19482

  • SHA1

    17ab4c6945d480a8c688d33378627fa58e71c0d0

  • SHA256

    f7b9599f6c3793b43300909e1589654002eb96d0799d731f2507475e48862352

  • SHA512

    5f3b7da007abba89b1d1e1bba093aeca49712d9ed7f2479dce0fa0c75244977a13e206990d2fabb8fe71a402e3306cde417a02f7276ec9d8052205d0f6981b09

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A86A3pZ5jl9GU8VJ035kXCjx7L/A:Qw+asqN5aW/hL6pZ9kJ0JkM78

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! Don't worry, you can return all your files! If you want to restore them, write to the mail: [email protected] YOUR ID [email protected] Free decryption as guarantee Before paying you can send us up to 3 files for free decryption. The total size of files must be less than 3Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain 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 (519) 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\2024-06-13_e3a0bcbc419370c4ea0fd4c6a0d19482_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_e3a0bcbc419370c4ea0fd4c6a0d19482_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:508
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4228
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:812
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3068
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:8680
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:636
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3624
        • 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:7220
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:1396
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:856

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-A3E915C4.[[email protected]].dkq
            Filesize

            2.7MB

            MD5

            9d0af957af71555822e6a8f7b47d3017

            SHA1

            4a89f3debf4d7d47df03b57a43bd1311b858eb27

            SHA256

            4b74835ea3e5accfa6165fc0f563aaafb9f6c503c4a21e8013d765cdab7d1b96

            SHA512

            91346a0ea1a83f348a5fcaca37ca9da0483445d96dc3397ba58c4335d90a9bb6c9d902d43d41d0fd90fa7597abb7db3b98bfc929649dac6bbdf4ebc38e43148e

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

            4KB

            MD5

            796db1da798dacacf5dc31b49113d0d4

            SHA1

            23a6383499bbcc8d1a516d3cdcc3e3f599387424

            SHA256

            426facdd333e562dcfaef6c73043180d9446f13ef7680cbe172e6fead2322075

            SHA512

            89a0bdfae5da191db877b755c133bbecc9f58e88087897c0621fef88d66b7092337119ac7ef3b1e63cc5ab2e4bb93d8e2aefeb3751d688344ed24efdfdc6ddc0

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