Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/08/2026, 06:21

General

  • Target
    2026-08-04_8d0b2e6e434d788d0bc1b5b032d26a92_elex_remcos_wannacry.exe
  • Size 60KB
  • Sample260804-g4r6hsshkb
  • SHA256 fa5f1e7b7a1ec41aa10009dbdd5dbb41282666881a44d8669424c4692eba5d12
  • 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\2026-08-04_8d0b2e6e434d788d0bc1b5b032d26a92_elex_remcos_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_8d0b2e6e434d788d0bc1b5b032d26a92_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:2620
    • C:\Windows\{EBE95BCF-9E98-413e-9795-0515937392F5}.exe
      C:\Windows\{EBE95BCF-9E98-413e-9795-0515937392F5}.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:4516
      • C:\Windows\{DB553AB4-9B19-4cde-8AE6-C542C1921EED}.exe
        C:\Windows\{DB553AB4-9B19-4cde-8AE6-C542C1921EED}.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:3520
        • C:\Windows\{8F615B3F-97F0-467b-854D-F626CA775DAC}.exe
          C:\Windows\{8F615B3F-97F0-467b-854D-F626CA775DAC}.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:4092
          • C:\Windows\{D830BCDE-ECE9-46ad-B551-045AE9FBD9A0}.exe
            C:\Windows\{D830BCDE-ECE9-46ad-B551-045AE9FBD9A0}.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:1788
            • C:\Windows\{DEE07C00-C7C8-43e5-AF61-E3E74D2F4891}.exe
              C:\Windows\{DEE07C00-C7C8-43e5-AF61-E3E74D2F4891}.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:412
              • C:\Windows\{483B9472-9C6D-48b5-B87C-5A7FAFD7A1E8}.exe
                C:\Windows\{483B9472-9C6D-48b5-B87C-5A7FAFD7A1E8}.exe
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:4828
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c del C:\Windows\{DEE07~1.EXE > nul
                7⤵
                • Executes a command shell one-liner
                • System Location Discovery: System Language Discovery
                PID:3248
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c del C:\Windows\{D830B~1.EXE > nul
              6⤵
              • Executes a command shell one-liner
              • System Location Discovery: System Language Discovery
              PID:4668
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c del C:\Windows\{8F615~1.EXE > nul
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:1824
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c del C:\Windows\{DB553~1.EXE > nul
          4⤵
          • Executes a command shell one-liner
          • System Location Discovery: System Language Discovery
          PID:2432
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c del C:\Windows\{EBE95~1.EXE > nul
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:1820
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:2912

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        {483B9472-9C6D-48b5-B87C-5A7FAFD7A1E8}.exe

        • Path C:\Windows\{483B9472-9C6D-48b5-B87C-5A7FAFD7A1E8}.exe
        • Size 60KB
        • SHA256 d3414198527bac6f84f35ce4ecb326755f394c3750e8818d40401dfa99a8ae4d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {8F615B3F-97F0-467b-854D-F626CA775DAC}.exe

        • Path C:\Windows\{8F615B3F-97F0-467b-854D-F626CA775DAC}.exe
        • Size 60KB
        • SHA256 7deb38873e8f59e9f453447c7a9cfa94c133a3241d56de8d6bab2ec4c7524b14
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {D830BCDE-ECE9-46ad-B551-045AE9FBD9A0}.exe

        • Path C:\Windows\{D830BCDE-ECE9-46ad-B551-045AE9FBD9A0}.exe
        • Size 60KB
        • SHA256 565b513a33f548c004b3e01c6417259f3b87471b0322b82b31173f0175aad93f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {DB553AB4-9B19-4cde-8AE6-C542C1921EED}.exe

        • Path C:\Windows\{DB553AB4-9B19-4cde-8AE6-C542C1921EED}.exe
        • Size 60KB
        • SHA256 c0d520d3703ad78c77be9bb866a292f86a5cbb13e2fca0f866fdeec5b9cfcd12
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {DEE07C00-C7C8-43e5-AF61-E3E74D2F4891}.exe

        • Path C:\Windows\{DEE07C00-C7C8-43e5-AF61-E3E74D2F4891}.exe
        • Size 60KB
        • SHA256 7c37386c7f486266bf2ddb43fe4b20ea050455d23e846b25053f0ba02643126f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {EBE95BCF-9E98-413e-9795-0515937392F5}.exe

        • Path C:\Windows\{EBE95BCF-9E98-413e-9795-0515937392F5}.exe
        • Size 60KB
        • SHA256 955c96adb602b039d4896ecf33295fd6800b621e763e6489730e980a9c01214c
        • MD5 SHA1 SHA512 SSDEEP TLSH