Overview

overview

10

Static

static

253b606a1d...cc.exe

windows7_x64

10

253b606a1d...cc.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    11-06-2022 19:46

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General

  • Target

    253b606a1df715d763023be86ba061e79b17202a4f6c3387b66905f7661210cc.exe

  • Size

    92KB

  • MD5

    087b89e9762a8f81d254bfdb879f1f93

  • SHA1

    77071fbe5f6ed22c388baf10dd957cd6cb5ac223

  • SHA256

    253b606a1df715d763023be86ba061e79b17202a4f6c3387b66905f7661210cc

  • SHA512

    7d004aad73a24024846be1e063f2fd6a4b8404470fcd0c28b5b07dcf8fc4a642a56c3467be3f67d370c1ccce6fdaad7ed3e93659ed0ee0fe7bf3a6eb29e7b133

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 A4B04607 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\253b606a1df715d763023be86ba061e79b17202a4f6c3387b66905f7661210cc.exe
    "C:\Users\Admin\AppData\Local\Temp\253b606a1df715d763023be86ba061e79b17202a4f6c3387b66905f7661210cc.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:1972
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:904
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1164
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1528
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1844
        • 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:900
        • 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:1608
        • 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:1572
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:320

      Network

      MITRE ATT&CK Enterprise v6

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      Downloads

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

        13KB

        MD5

        1d288557532ac29d1dc81aefc0e7346e

        SHA1

        f88e488f6d4bfd2a6d8fb259ff52eae68b31ee05

        SHA256

        e3cba35281767983d5951db684392b92b43b9479c0c81545f9cb1e8cf12ac47a

        SHA512

        5505d5b719d8b6b86f1a2893a9ab8b5dfb71f9a8cbf26b7d12fb7760a97a1bf949e148ba58956c04b00d2cdcf6f8a8886d953218df71347bf0df76a8aa0d317f

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

        13KB

        MD5

        1d288557532ac29d1dc81aefc0e7346e

        SHA1

        f88e488f6d4bfd2a6d8fb259ff52eae68b31ee05

        SHA256

        e3cba35281767983d5951db684392b92b43b9479c0c81545f9cb1e8cf12ac47a

        SHA512

        5505d5b719d8b6b86f1a2893a9ab8b5dfb71f9a8cbf26b7d12fb7760a97a1bf949e148ba58956c04b00d2cdcf6f8a8886d953218df71347bf0df76a8aa0d317f

        Download Submit

      • memory/304-59-0x0000000000000000-mapping.dmp

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      • memory/900-60-0x0000000000000000-mapping.dmp

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      • memory/904-55-0x0000000000000000-mapping.dmp

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      • memory/1164-56-0x0000000000000000-mapping.dmp

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      • memory/1528-57-0x0000000000000000-mapping.dmp

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      • memory/1572-62-0x0000000000000000-mapping.dmp

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      • memory/1608-61-0x0000000000000000-mapping.dmp

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      • memory/1844-58-0x0000000000000000-mapping.dmp

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      • memory/1972-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

        Filesize

        8KB

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