Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/10/2026, 23:17

General

  • Target
    2026-10-24_43100c4c6b67fee46132ed10c9e296c5_elex_remcos_wannacry.exe
  • Size 76KB
  • Sample261025-29sdpaaa28
  • SHA256 cc4ea74969c5ab86155e0513d9cd3b630b53c1dd6e8fe39999f088c0441c244c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Stormser, StormDDoS, StormAttack, Stormer

    Stormser aka StormDDoS, StormAttack, and Stormer is a Windows worm written in C++.

  • Detects Stormser aka Storm DDoS and StormAttack 6 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 6 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 12 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 6 IoCs
  • Drops file in Windows directory 6 IoCs
  • Executes a command shell one-liner 1 TTPs 6 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 13 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 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-24_43100c4c6b67fee46132ed10c9e296c5_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-24_43100c4c6b67fee46132ed10c9e296c5_elex_remcos_wannacry.exe"
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5244
    • C:\Windows\{C57283DC-41F4-4e33-B18D-EE41B1EA9B3A}.exe
      C:\Windows\{C57283DC-41F4-4e33-B18D-EE41B1EA9B3A}.exe
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5736
      • C:\Windows\{96E8404A-7520-41e5-8AF1-6F75E40B627C}.exe
        C:\Windows\{96E8404A-7520-41e5-8AF1-6F75E40B627C}.exe
        3⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5056
        • C:\Windows\{98561731-CEA4-4824-863F-70E0C9764285}.exe
          C:\Windows\{98561731-CEA4-4824-863F-70E0C9764285}.exe
          4⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1000
          • C:\Windows\{BA23545D-19DA-49fb-A485-65C74C055777}.exe
            C:\Windows\{BA23545D-19DA-49fb-A485-65C74C055777}.exe
            5⤵
            • Boot or Logon Autostart Execution: Active Setup
            • Executes dropped EXE
            • Drops file in Windows directory
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3788
            • C:\Windows\{4F9F8FEC-79E5-45a6-9786-D7A7AD22468A}.exe
              C:\Windows\{4F9F8FEC-79E5-45a6-9786-D7A7AD22468A}.exe
              6⤵
              • Boot or Logon Autostart Execution: Active Setup
              • Executes dropped EXE
              • Drops file in Windows directory
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1612
              • C:\Windows\{A683FAE0-AA8F-4d41-8E73-B4BEA722CD7E}.exe
                C:\Windows\{A683FAE0-AA8F-4d41-8E73-B4BEA722CD7E}.exe
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:4336
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{4F9F8~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:2744
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{BA235~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:4276
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{98561~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:2608
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{96E84~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:2964
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{C5728~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:3144
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-1~1.EXE > nul
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:396

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {4F9F8FEC-79E5-45a6-9786-D7A7AD22468A}.exe

        • Path C:\Windows\{4F9F8FEC-79E5-45a6-9786-D7A7AD22468A}.exe
        • Size 76KB
        • SHA256 48d71facbaacff1cfbf0a17113c1bce21392d88345d91f6b2c3c2405869f0a73
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {96E8404A-7520-41e5-8AF1-6F75E40B627C}.exe

        • Path C:\Windows\{96E8404A-7520-41e5-8AF1-6F75E40B627C}.exe
        • Size 76KB
        • SHA256 c6a7c8ebad3c70942c3bbe0b7a7dfb2c9f7a7e5120e146c01e594e83cb695acf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {98561731-CEA4-4824-863F-70E0C9764285}.exe

        • Path C:\Windows\{98561731-CEA4-4824-863F-70E0C9764285}.exe
        • Size 76KB
        • SHA256 4af0c46b965e4b07212564c3517dfe4ff3e69b42ea9b49c623190883fe746266
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {A683FAE0-AA8F-4d41-8E73-B4BEA722CD7E}.exe

        • Path C:\Windows\{A683FAE0-AA8F-4d41-8E73-B4BEA722CD7E}.exe
        • Size 76KB
        • SHA256 dbb669f0af12611c735e3f93a0ebb53c8aab485c790ee4a742bcd3149cddf27e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {BA23545D-19DA-49fb-A485-65C74C055777}.exe

        • Path C:\Windows\{BA23545D-19DA-49fb-A485-65C74C055777}.exe
        • Size 76KB
        • SHA256 ce2be63d604457995b0675752c612ab78eedfe2b3c28a9ddd28d66681d9611f3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {C57283DC-41F4-4e33-B18D-EE41B1EA9B3A}.exe

        • Path C:\Windows\{C57283DC-41F4-4e33-B18D-EE41B1EA9B3A}.exe
        • Size 76KB
        • SHA256 5e123d4cd268879ce9792a7af4c017595c7be5345b53cc0a6673d8dbc3e8062d
        • MD5 SHA1 SHA512 SSDEEP TLSH