Analysis

  • max time kernel
    149s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/04/2026, 14:00

General

  • Target
    2026-04-22_2a428999d05ff3cfdbe94fad3755e302_elex_wannacry.exe
  • Size 1.7MB
  • Sample260422-rbb9pscs3x
  • SHA256 a43315de03c2cb5fd313ad4e9f4d33d814737c87ae19c175f3a8f0c60ce7a016
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (255) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-22_2a428999d05ff3cfdbe94fad3755e302_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-22_2a428999d05ff3cfdbe94fad3755e302_elex_wannacry.exe"
    1⤵
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3636
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3356
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a76D.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1692
    • C:\Windows\Logo1_.exe
      C:\Windows\Logo1_.exe
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4916
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1600
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4020
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4600
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:848
  • C:\Windows\uninstall\rundl132.exe
    C:\Windows\uninstall\rundl132.exe
    1⤵
    • Drops file in Drivers directory
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1620

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        RCXA048.tmp

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RCXA048.tmp
        • Size 156KB
        • SHA256 a51ac545bbc82174f0c1fcd13920f093262d2ac71ff211aa32837deb859651c6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA2FB.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCXA2FB.tmp
        • Size 94KB
        • SHA256 11d48d8272bff88c3f10f32244fa4fa274571a304beca4129fac2a646297441f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA638.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\RCXA638.tmp
        • Size 103KB
        • SHA256 6e8732e0a804368bd1a93b61cf65fc0dd9391b1cae1355232d9afc776e112003
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA6C8.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCXA6C8.tmp
        • Size 91KB
        • SHA256 e0b7901b78582eb816978f1f8d66a1c348f0c46f0e8adaa749e99e60c350e9a0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msedge.exe.Exe

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\msedge.exe.Exe
        • Size 4.0MB
        • SHA256 5bee4b776d7ce0097aea9728458b80ca2ec469cd3a6267458474b438f537ab2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA83F.tmp

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\RCXA83F.tmp
        • Size 100KB
        • SHA256 f94c062933a7da9a2756dd4191db997e1dbaf1c3ed7bf89280c44d8b55b33747
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe.Exe

        • Path C:\Program Files\7-Zip\7z.exe.Exe
        • Size 642KB
        • SHA256 0370778c84bfea3b958b052b9f4bf159234ec14f68f48d0f8ae0ad6a50a3e0cd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX94EA.tmp

        • Path C:\Program Files\7-Zip\RCX94EA.tmp
        • Size 91KB
        • SHA256 ee15eeeae4170757d6f8ad1ee2749ee1502f683074f193d74ad9b92d130a4ef4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX95EB.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX95EB.tmp
        • Size 92KB
        • SHA256 11fc75379d314c660910d63cd3b7531140956f89575932050033afd6361f07a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXAC76.tmp

        • Path C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\RCXAC76.tmp
        • Size 92KB
        • SHA256 b5bfa52b4807ed165a03e87ba3f4983772079d904a1ecc69c5210252930d033b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXACE5.tmp

        • Path C:\ProgramData\Package Cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\RCXACE5.tmp
        • Size 92KB
        • SHA256 867fa8fb19bb5c5847fce0bcdcd2727687cc4203ee6959f94fcb2945ecf0afef
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a76D.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a76D.bat
        • Size 679B
        • SHA256 9ebaf45025e6059d9aa29310ef881eed1a8f0857fa86d9196ea204469a143aa4
        • MD5 SHA1 SHA512 TLSH

        2026-04-22_2a428999d05ff3cfdbe94fad3755e302_elex_wannacry.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-04-22_2a428999d05ff3cfdbe94fad3755e302_elex_wannacry.exe.exe
        • Size 1.7MB
        • SHA256 8b8aef9469be48599c4b38ac88d778b4fb694fc3f5cba8d9153b7df4aefae438
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 93KB
        • SHA256 b758a5d245fbca1721d150ae2cd539d99b2116d4b79cfcacc3c9e6a64d9c5518
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

        • Path C:\Windows\system32\drivers\etc\hosts
        • Size 842B
        • SHA256 d9704dab05e988be3e5e7b7c020bb9814906d11bb9c31ad80d4ed1316f6bc94e
        • MD5 SHA1 SHA512 TLSH

        memory/1620-15-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4912-8-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4916-814-0x0000000003B80000-0x0000000003B87000-memory.dmp

        memory/4916-813-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4916-18-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4916-1252-0x0000000000400000-0x0000000000429000-memory.dmp