Overview

overview

10

Static

static

6b99139d51...ff.exe

windows7_x64

10

6b99139d51...ff.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    4294210s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    05-03-2022 17:23

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General

  • Target

    6b99139d51f3413a035a0f158c68db3eaba474659bacce952560dbb1cc3bb7ff.exe

  • Size

    92KB

  • MD5

    ca544a12a971b8251ae847f80cdbfabb

  • SHA1

    6b9cd05633621ec9cafaed053cdd80cfc5ca41ee

  • SHA256

    6b99139d51f3413a035a0f158c68db3eaba474659bacce952560dbb1cc3bb7ff

  • SHA512

    6276bdf588e452dcfc919adeb7d240d8451fe92d2a808b81eac929b1292ef43d557291a518a5f65c2856eec016256181d8ab79ba3ab0cb716d6fd9428d0b05d8

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! 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 076E888B 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 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\6b99139d51f3413a035a0f158c68db3eaba474659bacce952560dbb1cc3bb7ff.exe
    "C:\Users\Admin\AppData\Local\Temp\6b99139d51f3413a035a0f158c68db3eaba474659bacce952560dbb1cc3bb7ff.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:964
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:756
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:304
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1068
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1188
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1328
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1572
        • 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:2008
        • 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:2012
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1412

      Network

      MITRE ATT&CK Enterprise v6

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      Downloads

      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        4758a70f02bb7f79246fab7d2b9b57f8

        SHA1

        1fe4036670ae1ba98373e8ba53edbe4683009ef9

        SHA256

        baf4264d227fbdcf5237c71bc77b267c203c3016a87c0475ff3584845a3fbce9

        SHA512

        2b94723a29a46d1acdd81b4965f0216a4c6ec99f7a5cdc44582e4b52ea06051c22c199cf86c6489fe29f088c038d538c550628870838f6f45a6446d7cd53a970

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      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        4758a70f02bb7f79246fab7d2b9b57f8

        SHA1

        1fe4036670ae1ba98373e8ba53edbe4683009ef9

        SHA256

        baf4264d227fbdcf5237c71bc77b267c203c3016a87c0475ff3584845a3fbce9

        SHA512

        2b94723a29a46d1acdd81b4965f0216a4c6ec99f7a5cdc44582e4b52ea06051c22c199cf86c6489fe29f088c038d538c550628870838f6f45a6446d7cd53a970

        Download Submit

      • memory/964-54-0x00000000762A1000-0x00000000762A3000-memory.dmp

        Filesize

        8KB

        Download

      • memory/2012-55-0x000007FEFC4A1000-0x000007FEFC4A3000-memory.dmp

        Filesize

        8KB

        Download