Overview

overview

10

Static

static

23b5ce252f...5b.exe

windows7_x64

10

23b5ce252f...5b.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12-06-2022 00:39

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General

  • Target

    23b5ce252f1cb3ff40a3bcb3ea53dd674175c3ad782b00e33ae45c8c87fa265b.exe

  • Size

    235KB

  • MD5

    fc7b0066d7d250b619a3c6c3ee1b22f9

  • SHA1

    f307dc2d7d41e5d2678144de98445fa3c14e7583

  • SHA256

    23b5ce252f1cb3ff40a3bcb3ea53dd674175c3ad782b00e33ae45c8c87fa265b

  • SHA512

    4178ac9a1e5e9f5817412de1ab210c1c95ebe1a47875f14844ff5e234191c2facaf8f7ae184c9fc33c334cdfa8615ccbdc8aaaac1d3aa6697d4ea49ef01aa1bd

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 CA394C56 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\23b5ce252f1cb3ff40a3bcb3ea53dd674175c3ad782b00e33ae45c8c87fa265b.exe
    "C:\Users\Admin\AppData\Local\Temp\23b5ce252f1cb3ff40a3bcb3ea53dd674175c3ad782b00e33ae45c8c87fa265b.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:1564
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1992
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1780
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1092
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:556
        • 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:1552
        • 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:1628
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:584

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Privilege Escalation

      Defense Evasion

      File Deletion

      2
      T1107

      Modify Registry

      2
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Exfiltration

      Command and Control

      Impact

      Inhibit System Recovery

      2
      T1490

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        13KB

        MD5

        4515fc5e1dc749d3844eeaaad3fa945d

        SHA1

        80f73a10f5476f91cbfa246f21cede8ed4054007

        SHA256

        3642e579e3eca1e18c257e9988c26b1b10cfacc48809dc444e77f6247a0baeff

        SHA512

        81918ec2d6d6021a99d4daf34c9938acc42717bbac8ce91686a087f0eecd00a511a1380365d39acd80f27ec7ae95be44cd95e1eb640480a1cfabb2e65e05d122

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

        13KB

        MD5

        4515fc5e1dc749d3844eeaaad3fa945d

        SHA1

        80f73a10f5476f91cbfa246f21cede8ed4054007

        SHA256

        3642e579e3eca1e18c257e9988c26b1b10cfacc48809dc444e77f6247a0baeff

        SHA512

        81918ec2d6d6021a99d4daf34c9938acc42717bbac8ce91686a087f0eecd00a511a1380365d39acd80f27ec7ae95be44cd95e1eb640480a1cfabb2e65e05d122

        Download Submit
      • memory/556-64-0x0000000000000000-mapping.dmp
        Download
      • memory/1000-62-0x0000000000000000-mapping.dmp
        Download
      • memory/1092-63-0x0000000000000000-mapping.dmp
        Download
      • memory/1552-67-0x000007FEFBE61000-0x000007FEFBE63000-memory.dmp
        Filesize

        8KB

        Download
      • memory/1552-65-0x0000000000000000-mapping.dmp
        Download
      • memory/1564-54-0x0000000003498000-0x00000000034AD000-memory.dmp
        Filesize

        84KB

        Download
      • memory/1564-55-0x0000000075CD1000-0x0000000075CD3000-memory.dmp
        Filesize

        8KB

        Download
      • memory/1564-60-0x0000000000220000-0x0000000000239000-memory.dmp
        Filesize

        100KB

        Download
      • memory/1564-59-0x0000000003498000-0x00000000034AD000-memory.dmp
        Filesize

        84KB

        Download
      • memory/1564-61-0x0000000000400000-0x0000000003364000-memory.dmp
        Filesize

        47.4MB

        Download
      • memory/1628-66-0x0000000000000000-mapping.dmp
        Download
      • memory/1708-56-0x0000000000000000-mapping.dmp
        Download
      • memory/1780-58-0x0000000000000000-mapping.dmp
        Download
      • memory/1992-57-0x0000000000000000-mapping.dmp
        Download