Overview

overview

10

Static

static

1

b33e8ce6a7...ir.exe

windows7_x64

10

b33e8ce6a7...ir.exe

windows10_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    27-10-2020 03:59

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General

  • Target

    b33e8ce6a7035bee5c5472d5b870b68a.vir.exe

  • Size

    114KB

  • MD5

    b33e8ce6a7035bee5c5472d5b870b68a

  • SHA1

    783d08fe374f287a4e0412ed8b7f5446c6e65687

  • SHA256

    2b5a3934d3e81fee4654bb1a7288c81af158a6d48a666cf8e379b0492551188f

  • SHA512

    78c36e1f8ba968d55e8b469fba9623bd20f9d7216b4f5983388c32be564484caab228935f96fd8bff82bc8bb8732f7beb9ccede50385b6b6ba7e23b5cc60679f

Score
10/10
ransomwarepersistencemakopspyware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted and now have the "makop" extension. The file structure was not damaged, we did everything possible so that this could not happen. .2. Q: How to recover files? A: If you wish to decrypt your files you will need to pay in bitcoins. .3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee. .4. Q: How to contact with you? A: You can write us to our mailbox: [email protected] or [email protected] .5. Q: How will the decryption process proceed after payment? A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. .6. Q: If I don�t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money. :::BEWARE::: DON'T try to change encrypted files by yourself! If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files! Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.

Signatures

  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

    ransomwaremakop
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Deletes system backup catalog 2 TTPs

    Ransomware often tries to delete backup files to inhibit system recovery.

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 9752 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies system certificate store 2 TTPs 2 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe
    "C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1524
    • C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe
      "C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe"
      2⤵
      • Modifies extensions of user files
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe
        "C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe" n1672
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1600
        • C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe
          "C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe" n1672
          4⤵
            PID:1552
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1964
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:1968
          • C:\Windows\system32\wbadmin.exe
            wbadmin delete catalog -quiet
            4⤵
            • Deletes backup catalog
            PID:572
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1444
        • C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe
          "C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe" n1672
          3⤵
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1476
          • C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe
            "C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe" n1672
            4⤵
              PID:296
          • C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe
            "C:\Users\Admin\AppData\Local\Temp\b33e8ce6a7035bee5c5472d5b870b68a.vir.exe" n1672
            3⤵
            • Loads dropped DLL
            PID:1824
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Modifies service
        • Suspicious use of AdjustPrivilegeToken
        PID:1172
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:336
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:916
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
            PID:1352

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • memory/528-14-0x000007FEF6350000-0x000007FEF65CA000-memory.dmp

            Filesize

            2.5MB

            Download

          • memory/1672-3-0x0000000000400000-0x000000000041F000-memory.dmp

            Filesize

            124KB

            Download

          • memory/1672-1-0x0000000000400000-0x000000000041F000-memory.dmp

            Filesize

            124KB

            Download