Overview

overview

10

Static

static

10

2026-02-16...yn.exe

windows10-2004-x64

10

2026-02-16...yn.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    16/02/2026, 05:53

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General

  • Target
    2026-02-16_838ebb8bdf716b1628cd3a33566324cc_elex_makop_swisyn.exe
  • Size 184KB
  • Sample260216-gll7jsft5e
  • SHA256 16e536ba21863b2e945936a9cf328a0961ae92b8677a06ade6dc2acfaf4e3433
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryexecutionmakopimpactpersistenceransomware

Malware Config

Extracted

Path

  • C:\Program Files\Common Files\microsoft shared\ClickToRun\+README-WARNING+.txt

  • 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 us. .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 mailboxes: [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 payload 1 IoCs
  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

    ransomwaremakop
  • Makop family
    makop
  • Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
    defense_evasion
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (3332) 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
  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Drops file in System32 directory 8 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

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

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 3 TTPs 1 IoCs

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

    ransomware
  • Modifies data under HKEY_USERS 45 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 10 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\2026-02-16_838ebb8bdf716b1628cd3a33566324cc_elex_makop_swisyn.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-02-16_838ebb8bdf716b1628cd3a33566324cc_elex_makop_swisyn.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4004
    • \??\c:\users\admin\appdata\local\temp\2026-02-16_838ebb8bdf716b1628cd3a33566324cc_elex_makop_swisyn.exe 
      c:\users\admin\appdata\local\temp\2026-02-16_838ebb8bdf716b1628cd3a33566324cc_elex_makop_swisyn.exe 
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1808
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2740
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:796
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:648
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:756
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4664
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visibility of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2268
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1296
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visibility of hidden/system files in Explorer
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1708
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:4296
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4184
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2020
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2216
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:580
    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
      1⤵
      • Drops file in System32 directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:5088

    Network

          MITRE ATT&CK Enterprise v16

          Reconnaissance

          Resource Development

          Initial Access

          Execution

          Command and Scripting Interpreter

          1
          T1059

          Windows Management Instrumentation

          1
          T1047

          Persistence

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Defense Evasion

          Direct Volume Access

          1
          T1006

          Hide Artifacts

          1
          T1564

          Hidden Files and Directories

          1
          T1564.001

          Indicator Removal

          3
          T1070

          File Deletion

          3
          T1070.004

          Modify Registry

          2
          T1112

          Credential Access

          Discovery

          Peripheral Device Discovery

          1
          T1120

          Query Registry

          4
          T1012

          System Information Discovery

          3
          T1082

          System Location Discovery

          1
          T1614

          System Language Discovery

          1
          T1614.001

          Lateral Movement

          Collection

          Command and Control

          Exfiltration

          Impact

          Inhibit System Recovery

          3
          T1490

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          +README-WARNING+.txt
          • Path C:\Program Files\Common Files\microsoft shared\ClickToRun\+README-WARNING+.txt
          • Size 1KB
          • SHA256 dd62f39b01cf2120c9e21add9e80396b44704d3d9e5499de2ef26fa5824c10bb
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          2026-02-16_838ebb8bdf716b1628cd3a33566324cc_elex_makop_swisyn.exe 
          • Path C:\Users\Admin\AppData\Local\Temp\2026-02-16_838ebb8bdf716b1628cd3a33566324cc_elex_makop_swisyn.exe 
          • Size 49KB
          • SHA256 f43b86ff363f19f26cc7d80aa64fa0894a264a736ae0abd013d98e344637e4d8
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          explorer.exe
          • Path C:\Windows\Resources\Themes\explorer.exe
          • Size 135KB
          • SHA256 d9b9200cf08943435749515b67e59e48c775011d1f9b0c80d98648872f12654d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          icsys.icn.exe
          • Path C:\Windows\Resources\Themes\icsys.icn.exe
          • Size 135KB
          • SHA256 94d1eb6318968700b13a03e41c67ccee40302b1231d49421de34a2546167caa8
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          svchost.exe
          • Path C:\Windows\Resources\svchost.exe
          • Size 135KB
          • SHA256 d3c9b90fed61006cfa09744b6745d88925164440aee6e760f05da6f2c6dcd8cc
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          spoolsv.exe
          • Path \??\c:\windows\resources\spoolsv.exe
          • Size 135KB
          • SHA256 19435f2cc1810a6579493d07c1b80e04f6cd577968ef4efaf7fb8095b3cb8824
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/1296-45-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/1708-7229-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/1808-367-0x00000000026B0000-0x00000000028D3000-memory.dmp
          Download

          memory/2268-7226-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/2268-20-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/4004-47-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/4004-0-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/4296-44-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/4664-46-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/5088-673-0x000002A0784F0000-0x000002A0784FC000-memory.dmp
          Download