Overview

overview

10

Static

static

3

2023-05-01...is.exe

windows7-x64

10

2023-05-01...is.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    03-05-2023 03:20

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General

  • Target

    2023-05-01_10e32edb068eec09bcb2c06e493d267c_crysis.exe

  • Size

    92KB

  • MD5

    10e32edb068eec09bcb2c06e493d267c

  • SHA1

    0564166e48cf4873061197af92845aeb8003c79c

  • SHA256

    af1342c508451269009121f620068a7da6c848e360475e5017c8eb7199b1ecc6

  • SHA512

    26878fd95338f14ef3b64b0fcc97c2074b54e4454fd4ac2b4f22cd931f35456b38c41ac7259ccfb31cf7dd4b98851b2e2a6bd549956ff7a520971d459eadf69c

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AiGra1OVu/GajEpd6xFI51Mhv:Qw+asqN5aW/hLUGGsSGajGdT1

Score
10/10
dharmapersistenceransomwarespywarestealer

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]): [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 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    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\2023-05-01_10e32edb068eec09bcb2c06e493d267c_crysis.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-05-01_10e32edb068eec09bcb2c06e493d267c_crysis.exe"
    1⤵
    • Modifies extensions of user files
    • 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:2040
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1948
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1748
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:660
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1400
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2180
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:288
        • 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:2088
        • 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:2152
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:836

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-B3B8ADF0.[[email protected]].h3r
        Filesize

        23.5MB

        MD5

        1bfda7b3d17c903099be56f0020f8eed

        SHA1

        c2e75a270a9a7c930b643942856aa27ea8efe9ad

        SHA256

        5e4a7c5c96bec7eea66de2c3f57dcf622870aa001d4340942736987c64a73ccb

        SHA512

        ff457fab1288ba44501a00cbbe9a9f0badf2da52f0b4acd4b0aed46799ac3be5ebe9ec11e5dd77be85ba2d202f8b840456fb9a0205845fb37117b59dd2d38ba2

        Download Submit

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

        4KB

        MD5

        00eeac5463cc9e03c4ce67e9e4545ed9

        SHA1

        dcb8f3b65fd4d5015ea5d0378004ecf4ab83651e

        SHA256

        0dcf85c645220ab665f61ed60e8c91ff741937b9c285577388471d58a2905e7f

        SHA512

        ac9e96a05e1651bb2106c764f6ed3cf072d245ca305a88240e42f88c6156613ed57d47d5c2d85ab31d87560a1d496f932754b5c294684583d2168d472d9f6575

        Download Submit

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

        4KB

        MD5

        00eeac5463cc9e03c4ce67e9e4545ed9

        SHA1

        dcb8f3b65fd4d5015ea5d0378004ecf4ab83651e

        SHA256

        0dcf85c645220ab665f61ed60e8c91ff741937b9c285577388471d58a2905e7f

        SHA512

        ac9e96a05e1651bb2106c764f6ed3cf072d245ca305a88240e42f88c6156613ed57d47d5c2d85ab31d87560a1d496f932754b5c294684583d2168d472d9f6575

        Download Submit

      • memory/2088-20174-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

        Download

      • memory/2152-20158-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download