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
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    11-06-2024 09:23

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General

  • Target

    2024-06-11_283cc37f7ec6547e7c791e5cf6e13f7d_crysis_dharma.exe

  • Size

    92KB

  • MD5

    283cc37f7ec6547e7c791e5cf6e13f7d

  • SHA1

    85ba450c20410805f75c98c341a20bc0cb8fd5b6

  • SHA256

    4ef86d3fe7ca65dc140d91940843f6cc49bc0fb95005a6d8cb0779459bf08d9c

  • SHA512

    4c28e935a5ea5ee1de09daa524c5f1a1dee61a7a48bbfda8d02b5f22a006a1a7e77652c8954aef29035f9b3e8c2316c942efe6daccae576f20fc4ef6c0504e04

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AdNd02jORTLYMOa8zO88si11r:ww+asqN5aW/hS/1juPfGzOkG

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 D24839A2 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 (315) 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\2024-06-11_283cc37f7ec6547e7c791e5cf6e13f7d_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_283cc37f7ec6547e7c791e5cf6e13f7d_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:2220
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2204
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2972
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2164
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2928
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2096
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3004
        • 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:3056
        • 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:2840
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1940

      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-D24839A2.[[email protected]].arrow
        Filesize

        24.4MB

        MD5

        647fde0c0826310f4e82d87da5656af3

        SHA1

        747a4aeb6f7a15ea639f4b0f7f8445d8112acad4

        SHA256

        5501cd997796fe61f8d91fa1d9d3e9462d0ce97a658fb4d87410f811a6a017d4

        SHA512

        16b566a48aeebc698f7250c0e92272fd1ceee9664d8f8c10232e76ae4da7b6eedd47416cc6cc2ba59ffac32695cc6e6bd4d386f9628c6b8585173803bc5605a3

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

        13KB

        MD5

        9e1e3960c1f03702fe700548272a265c

        SHA1

        740305353024bc9e2c9fa0dd37f219c788e59f9d

        SHA256

        9218148b6e0ee7d2b9ac66b5d5220a0fbe61505f8ac6738fb35a3bc6afa7becb

        SHA512

        58227754da7362182d24bcb06ce617d17b8bf8a993411230890cd3b56088b5c33c66c8085ddfb72edfa95e9b7f6ed15c1d642ccb8b0524b93602da84fab48eb3

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      • memory/3056-20223-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp
        Filesize

        64KB

        Download