Overview

overview

10

Static

static

21e457408a...c6.exe

windows7_x64

10

21e457408a...c6.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12-06-2022 07:06

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General

  • Target

    21e457408a5bff7c49eca1ace5b4837b02981a50b1d869e8ab424f2f16a60bc6.exe

  • Size

    92KB

  • MD5

    6622142194c78b4aeeafeb31e042ab8c

  • SHA1

    c54543813bacf167aa88b5aa81a4b3628c637e49

  • SHA256

    21e457408a5bff7c49eca1ace5b4837b02981a50b1d869e8ab424f2f16a60bc6

  • SHA512

    e0804254b6deb488c037ad22ad93c6d6fecc073ae75e8056aa4fe2e6e57f6b53b634d84ec6e38ca7d15feb20ce2eb41bd01c2681e22dfcac811ffc61b340810d

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\ProgramData\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 1D7DDC16 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 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 1 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). Likely ransomware behaviour.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\21e457408a5bff7c49eca1ace5b4837b02981a50b1d869e8ab424f2f16a60bc6.exe
    "C:\Users\Admin\AppData\Local\Temp\21e457408a5bff7c49eca1ace5b4837b02981a50b1d869e8ab424f2f16a60bc6.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:1684
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1368
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1952
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1512
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1912
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1692
        • 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:672
        • 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:1588
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:776

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

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

        13KB

        MD5

        5162811d88133e281fe5cb7e50b8cf4e

        SHA1

        a2d003bc28a288771487aa54e025625ef8ce87a9

        SHA256

        237f41c45cb2efbce646728e3fbf512b1814d00653c709b42e6cca1cf48fe71c

        SHA512

        01c9ce87c6cfed2eddca9466a5663b4ba7fdaf1d3490c6a966fdfd2f1eafe15daa93e4108a5ddf4ec437456cb5b2f88057a538654ee5fe4b3624cd1c0509b841

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

        13KB

        MD5

        5162811d88133e281fe5cb7e50b8cf4e

        SHA1

        a2d003bc28a288771487aa54e025625ef8ce87a9

        SHA256

        237f41c45cb2efbce646728e3fbf512b1814d00653c709b42e6cca1cf48fe71c

        SHA512

        01c9ce87c6cfed2eddca9466a5663b4ba7fdaf1d3490c6a966fdfd2f1eafe15daa93e4108a5ddf4ec437456cb5b2f88057a538654ee5fe4b3624cd1c0509b841

        Download Submit

      • memory/672-61-0x0000000000000000-mapping.dmp

        Download

      • memory/1368-56-0x0000000000000000-mapping.dmp

        Download

      • memory/1512-58-0x0000000000000000-mapping.dmp

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      • memory/1588-62-0x0000000000000000-mapping.dmp

        Download

      • memory/1684-54-0x00000000752D1000-0x00000000752D3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/1692-60-0x0000000000000000-mapping.dmp

        Download

      • memory/1912-59-0x0000000000000000-mapping.dmp

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      • memory/1952-57-0x0000000000000000-mapping.dmp

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      • memory/2044-55-0x0000000000000000-mapping.dmp

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