Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    05/05/2026, 03:58

General

  • Target
    2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe
  • Size 62KB
  • Sample260505-ejj83af121
  • SHA256 8fade851592b0f81b9140893b8bb12b899d48dcdce0e3e4cfd8af0a89bf71a66
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\riyhost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:6024
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2108
  • C:\Windows\Debug\riyhost.exe
    C:\Windows\Debug\riyhost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4024

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        riyhost.exe

        • Path C:\Windows\debug\riyhost.exe
        • Size 62KB
        • SHA256 e57cc4d347b9a7609dc5710cd04965d251755ad713693abfa387226654770b74
        • MD5 SHA1 SHA512 SSDEEP TLSH