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
    119s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 19:52

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General

  • Target

    2024-06-12_ecb9ce512c87d71d88144ad64f5abfd8_crysis_dharma.exe

  • Size

    92KB

  • MD5

    ecb9ce512c87d71d88144ad64f5abfd8

  • SHA1

    0cde37bd2c0aaa35b59bf910e5dbc9cf60f9e44c

  • SHA256

    f8f68990fd52ffe979ab4b7fb95658c7e914c8d2f0bc4b71c23193bdfdd984e8

  • SHA512

    6119ff932ef73de20215a4fad54f146ce20e63e51df0df2f874cb0646d17d1c2c157f9e453dbf310d3de05ffbe7a27515d87980016daed655e0bcc58745454d0

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AlBQbr5bYH+J4jS0B:ww+asqN5aW/hSVQv5+B

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 EF696E2A 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 (324) 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\2024-06-12_ecb9ce512c87d71d88144ad64f5abfd8_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_ecb9ce512c87d71d88144ad64f5abfd8_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:2036
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2720
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2248
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3176
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2900
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2472
        • 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:2280
        • 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:1836
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2448

      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\ProPlusWW.msi.id-EF696E2A.[[email protected]].bot
        Filesize

        24.4MB

        MD5

        30eddfc4484e463fd3e42bc505aa7237

        SHA1

        1cec211ead7c43e47f9fd87ec5ecc3d3469a0d2d

        SHA256

        82b0688a1fd209471b3c540f80161c9c51bc22d644d88b44ad40860303c39f1b

        SHA512

        a8bbc8f3c26aa105af417312cce748c57403121b9777b40922cfffec3517d2dacb6879cb677c103785c49d98b2c0c5c81345271a47885ab1fabcaaddf29c3e6b

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

        13KB

        MD5

        bfc985101e8d6d1a379c45c979279a38

        SHA1

        b85001c21f71272163edf4e085090bf8f4fd60fc

        SHA256

        2a0c5a0d5871c29ce00affba0aef5f9b0395d98a044ca33877cd8f8e484f0dd1

        SHA512

        4e3bb9dfa792cd878d3d867060bb95d282b182acece7af5f934df779a01b2bbf4cb0dd4fffca9b0c2e3cbc4a0b16cf3a2ae4456c37ea8224082e28810ddebad5

        Download Submit
      • memory/2280-20249-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download