Overview

overview

10

Static

static

10

2026-08-21...op.exe

windows10-2004-x64

10

2026-08-21...op.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/08/2026, 04:38

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General

  • Target
    2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe
  • Size 34KB
  • Sample260821-e9eq9sshqb
  • SHA256 80bc4ae5e57af19c4648a147da2a9632757ceff4112b34b7d2a331856d99d35d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
credential_accessdefense_evasiondiscoveryexecutionmakopimpactpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Family: Makop

    Ransomware family discovered by @VK_Intel in early 2020.

    ransomwaremakop
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (9435) 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
  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 5 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.

  • Interacts with shadow copies 3 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 4 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\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3680
    • C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe" n3680
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3236
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4740
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2656
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:2712
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2812
    • C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe" n3680
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1724
    • C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe" n3680
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4608
    • C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe" n3680
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2788
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5696
  • C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-21_48fce4c811222fb55fca5b0e703cb48a_elex_makop.exe"
    1⤵
      PID:4132
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:6012
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:2584
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:1436

      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

            Indicator Removal

            3
            T1070

            File Deletion

            3
            T1070.004

            Modify Registry

            1
            T1112

            Credential Access

            Credentials from Password Stores

            2
            T1555

            Credentials from Web Browsers

            1
            T1555.003

            Windows Credential Manager

            1
            T1555.004

            Unsecured Credentials

            1
            T1552

            Credentials In Files

            1
            T1552.001

            Discovery

            Browser Information Discovery

            1
            T1217

            Peripheral Device Discovery

            2
            T1120

            Query Registry

            3
            T1012

            System Information Discovery

            2
            T1082

            System Location Discovery

            1
            T1614

            System Language Discovery

            1
            T1614.001

            Lateral Movement

            Collection

            Data from Local System

            1
            T1005

            Command and Control

            Web Service

            1
            T1102

            Exfiltration

            Impact

            Inhibit System Recovery

            3
            T1490

            Replay Monitor

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            Downloads