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
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13-06-2024 00:42

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General

  • Target

    2024-06-13_815b4bf1a7372c76db0809d6122b57df_crysis_dharma.exe

  • Size

    92KB

  • MD5

    815b4bf1a7372c76db0809d6122b57df

  • SHA1

    f0ec3d7dcd44d35f0d4ddffe9e2c74e9492b0ff7

  • SHA256

    2cf4826c59b3a6d17814d869a7f39ba6584789aada655f49fb67165d6efcc3bc

  • SHA512

    f382dc91cc91ef18a30cdda961af440cfd98740fa2378c5a3e292ada26d2c9a9ec1d16a1b8c20c7b010ea7a408a652612c7133514d76c9fb57517b0b807e5ed0

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4Av2DAQHPPyHn2OzT3R46F7pcwwTXO:ww+asqN5aW/hSov+Xl7l

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! 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 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 (316) 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_815b4bf1a7372c76db0809d6122b57df_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_815b4bf1a7372c76db0809d6122b57df_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:2512
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1668
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2636
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2592
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3264
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1152
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3408
        • 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:3588
        • 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:2732
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2700

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-00FBDE53.[[email protected]].AeR
        Filesize

        23.5MB

        MD5

        757f2c77c6f7238f4428e99bb8d0f870

        SHA1

        5c7644ad3794f970616554724aadef75bb78bafc

        SHA256

        59a18ed89394dbc163bcdb8ead232b56f7d176d8a20bc25f9ae243512cc83f71

        SHA512

        7a4989bfeabe8e2cc435bf027c9bd999cae40f92651822ec1b70367555dcaf00f440b7436c57525d5f03208c83741ece330125b2921574d00f559c9efb560c76

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

        4KB

        MD5

        4bf76439c97ce65b416bdbf8d2fedf82

        SHA1

        72e1e9e45c65de96e20244595530a68909ffc166

        SHA256

        f0673aaf69f63ee8587cca917746495bf4144c20869ea7c12ed256e48042f6fa

        SHA512

        652b137bce61861da9b9ff8a655dca4a56627cf03e1d63b806fe8cab6344b71c17325ce6e62eca20488bb0d2bbf1ab3ca6eafc1a2083e998bcf9b2d7301e74d2

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      • memory/3588-20210-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

        Download