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Overview

overview

10

Static

static

10

3b15b66bf6...1e.exe

windows7-x64

10

3b15b66bf6...1e.exe

windows10-1703-x64

10

3b15b66bf6...1e.exe

windows10-2004-x64

10

3b15b66bf6...1e.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    86s
  • max time network
    142s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231222-en
  • resource tags

    arch:x64arch:x86image:win11-20231222-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22/01/2024, 15:47

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General

  • Target

    3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe

  • Size

    34KB

  • MD5

    5bcf1a6a65d8d0d2ad1c2a78935322b5

  • SHA1

    c5af15f8170e3840ba756397cb1548fa9489fae9

  • SHA256

    3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e

  • SHA512

    f21e3bc29b60d3ed248dd048774823d013beb43f2fcf7e560774f1987dc07ff42de2fb68a8dd3bad0653a8587cca9b9f18e0671342c81d8c5698b97a135eb639

  • SSDEEP

    768:24HLd8Vdh1qV1Esg8kdJCzSIZHkKRV6kNDB3eHkkb/u:2Q8VgV1U8ZGURVFB3eH/u

Score
10/10
makopransomwarespywarestealer

Malware Config

Extracted

Path

C:\Program Files\Common Files\DESIGNER\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted. 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. .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
  • Renames multiple (8410) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops file in Program Files directory 64 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe
    "C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4584
    • C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe
      "C:\Users\Admin\AppData\Local\Temp\3b15b66bf6a7d7ebab6437906686037f23a797d15e0fbff3d6741d3f58db8f1e.exe" n4584
      2⤵
        PID:5036
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1192
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1960
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:3904
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3556
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5116
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:440
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:1440
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:976

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files\Common Files\DESIGNER\readme-warning.txt
        Filesize

        1KB

        MD5

        77a68ff56146027e479d7fb6c84c4aa4

        SHA1

        d58ca47125ce00bf752bd66c378ace3559b98689

        SHA256

        fb25fd1761c66f21136889ce4f5a15c84e60e47e26595ae1b77f5f4f63d95f7f

        SHA512

        f47b954833905f6e6d17f98d882f460c7fd73e47efd48a9ddd01a16410c0754d240dab6fc45ae0afa3516f9dea24895619fdcbd96e232c5c3347e23fe485830e

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