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
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-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 (321) 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\2024-06-13_e3a0bcbc419370c4ea0fd4c6a0d19482_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_e3a0bcbc419370c4ea0fd4c6a0d19482_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:1384
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2220
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2768
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3012
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1920
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2904
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1944
        • 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:3032
        • 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:2868
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2088

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Initial Access

      Execution

      Windows Management Instrumentation

      1
      T1047

      Persistence

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Privilege Escalation

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Defense Evasion

      Indicator Removal

      2
      T1070

      File Deletion

      2
      T1070.004

      Modify Registry

      2
      T1112

      Credential Access

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      Discovery

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Exfiltration

      Command and Control

      Impact

      Inhibit System Recovery

      2
      T1490

      Resource Development

      Reconnaissance

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\osetup.dll.id-ED7A6ABF.[[email protected]].dkq
        Filesize

        6.3MB

        MD5

        ba3dc87d0654061251056e0052c9f6b6

        SHA1

        5cffecf40a16acbcd099718d8fbf385f05585fda

        SHA256

        2798b32c6d5d3496c01b045ac4aea826b15e448e0029a75dd5ba9f44402f0730

        SHA512

        248eed4ba7a1a5bcdb601004336ba4a487b7690292350f36bb4be28687421749af5c4aff8e9ce925f46a15eefef26ca2bae801e32324871560233578cd34a92c

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

        4KB

        MD5

        8b85c25f23b5e6c39106c27ae7f06241

        SHA1

        7a8baf09ab5d996703f3f7aba6930e80e8934d37

        SHA256

        9c4292bd97555c5ffce21e83742ba35e21e5846e6fb55d7fa57c6211dd15cbe5

        SHA512

        65212178aef7e860b675f9c4c739b7a1006c165ee8e1bdac78028ca6e7f0f611c2f8ef3131a3f107b8b87bc9b1937e21f25ab40d38f397a54c13bd57589e5e23

        Download Submit
      • memory/3032-20225-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download