Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-01-2025 18:45

General

  • Target

    2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe

  • Size

    41KB

  • MD5

    2ef05873f585d356665f0ea0fd8678ff

  • SHA1

    0be8c14efaf9752d48f8bf34ca5d75a40284967b

  • SHA256

    cb4957ca31c15745b25aaf474f66582daf99a9060a54f31aa5557317ea010684

  • SHA512

    785bbb3090af3f82aa0ff501f761f66e3904ffd6707da39667ce87e0478aa5adcd8c8060e0472e460322a55a037850418beeccd0145b1ec9a04b8bc8cd14c908

  • SSDEEP

    768:5xyl5HeOrgHICm1+Gu5NjY2eX7exwr2QB/9QSNTsryu+BFrForD8tMEWV+:585H7wLm14NtSmQeriBc8twV+

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted and now have the "CARLOS" 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] .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.

  • Makop family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (8296) files with added filename extension

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

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops desktop.ini file(s) 64 IoCs
  • 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 6 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Interacts with shadow copies 3 TTPs 1 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 27 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.

  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe" n3044
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3024
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4780
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4856
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4456
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:532
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1676
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:3604
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme-warning.txt
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3816
    • C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe" n3044
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4688
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme-warning.txt
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2448
    • C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe" n3044
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4780
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme-warning.txt
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5080
    • C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe" n3044
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4776
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme-warning.txt
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3552
    • C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe" n3044
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1804
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme-warning.txt
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2372
    • C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-01-27_2ef05873f585d356665f0ea0fd8678ff_makop.exe" n3044
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2324
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3484
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1404
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:5088
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1124

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-3442511616-637977696-3186306149-1000\desktop.ini

      Filesize

      356B

      MD5

      7283ebf19808e8123725816385a41d1e

      SHA1

      a15e20c9105b30e50110ac51b6d6d0724de26400

      SHA256

      cffc37b1f9a4e262e6a5ce5ecd7ad3cc4efd40f2f18bb03ee01a860db2d65427

      SHA512

      db100f75b5355e23c1e5fc62250543713aa08523619587e080ed7d42b171cf03b0e4be667ae8b54aa29bdacd957dfbab1766c74c085bbb5158bd88626ffb9b52

    • C:\$Recycle.Bin\S-1-5-21-3442511616-637977696-3186306149-1000\desktop.ini

      Filesize

      356B

      MD5

      64d4825eff6e10e7d3b379119dda8e1c

      SHA1

      0d925c9890cee2c49aa7650d79be42737899586a

      SHA256

      4100b3ebd70a10dc59a25a658a913aab8ce85abd6a1420affaaa9257ce08ce8f

      SHA512

      8c6bee2af8629f17323e14d2184b31a089364b827b48ee212a315aaccd95ca5b4ee41651f64b3014edcd7aae8ee157d9d740c6925a6528fe1b2a25a7828557d0

    • C:\$Recycle.Bin\S-1-5-21-3442511616-637977696-3186306149-1000\desktop.ini

      Filesize

      580B

      MD5

      578474156be0c993244dcf9501fa928d

      SHA1

      16b53071083b1014c4bf85bfbc3f837062240102

      SHA256

      8688ccf159e3e4243c09d69dcb10c8896a509460653c27c3b3f35c71905a287c

      SHA512

      a3dbb9b5da3b87df7e46db9a80d391fdc8ee56f8004f3ad7786a0a69187fd58ae68f7eef14f55a9895ae51dfd3ba6926f07ba6d91d227d2d5bb6de62c939f464

    • C:\$Recycle.Bin\S-1-5-21-3442511616-637977696-3186306149-1000\desktop.ini

      Filesize

      804B

      MD5

      fec850ecf9c8023c88d8d198637b8363

      SHA1

      e37222561a9ba9c77e9633090ec22cda5a40b58a

      SHA256

      1d6335df0637911ef43d272f26afc9b567b14cf0c7b43ef4ca5cfb2a40c4acf0

      SHA512

      4c8f01b673efbb5915042f2d31bd83d11acb5e78a7894ca1b3098e96090ce7bd7d2277bc7d1bcbe95cd737cbb475466e6892b19493615e6afb88d32a492033ad

    • C:\$Recycle.Bin\S-1-5-21-3442511616-637977696-3186306149-1000\desktop.ini

      Filesize

      1KB

      MD5

      7dc9a04f5bd25e511085d5b4fb60643c

      SHA1

      da2e34b357a2ed5958753d02826b81503fd72fbf

      SHA256

      4810d93566d5a19ca2bb0cba7eaaeeabac63e32b9817f5ce085f16b02f4f7d3f

      SHA512

      7aa816d59a92cd1d70f62c2fc5d3bc2dd8779f0c3cb7700377e7e658859684401b784cda1fbe8b9d5d3a0c7f57b1419992be7dc3a663506af166cf9bfd02e427

    • C:\$Recycle.Bin\S-1-5-21-3442511616-637977696-3186306149-1000\desktop.ini

      Filesize

      1KB

      MD5

      42cc15de46c1429b5085dce6515c7790

      SHA1

      3b0c042f248398af59215e7c1cbc126a7b7b2b6f

      SHA256

      84e748b9d5c107be6e2b16f7d7ae212e4d6729a3e399b66d1b23249b0a200c7d

      SHA512

      431c02793411cd938e651f98cf4c41c1d55772abafcc5d5c8ee757ff19a379b6108e88dd1986734dae5538ff07376e9f31218dc558d7abe418119e08213b4f3c

    • C:\Users\Admin\Desktop\readme-warning.txt

      Filesize

      1KB

      MD5

      5b847e2c729d9b78c10c5a05a7f00e4d

      SHA1

      753c40fe7f8f18159eb9702660773502e7eb564a

      SHA256

      1647ba80119c23da45a2b01d70c8564a062122b9273f94f130379a4bead68435

      SHA512

      e450eff2150d7cec896a46391d51477c57f8cc22b41a66587d56b6d8b3642ea61cc52f85455521a2d8ced28ef284f20caca129eb01da73cf9bb29d902a9f3de0