Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-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 (258) 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:1064
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3632
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3520
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a43BB.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2880
    • 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:4788
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4812
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:888
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2536
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4384
  • 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:4064

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        RCXDE8C.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCXDE8C.tmp
        • Size 94KB
        • SHA256 11d48d8272bff88c3f10f32244fa4fa274571a304beca4129fac2a646297441f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE13D.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\RCXE13D.tmp
        • Size 103KB
        • SHA256 6e8732e0a804368bd1a93b61cf65fc0dd9391b1cae1355232d9afc776e112003
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXE18F.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCXE18F.tmp
        • Size 91KB
        • SHA256 e0b7901b78582eb816978f1f8d66a1c348f0c46f0e8adaa749e99e60c350e9a0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXDFDF.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCXDFDF.tmp
        • Size 118KB
        • SHA256 370a9c5de01ac88ce7b46f7c960d9d0275d769c5d38b8f9d2613227538c53b68
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXD128.tmp

        • Path C:\Program Files\7-Zip\RCXD128.tmp
        • Size 91KB
        • SHA256 ee15eeeae4170757d6f8ad1ee2749ee1502f683074f193d74ad9b92d130a4ef4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        BlockConvertFrom.exe.Exe

        • Path C:\Program Files\BlockConvertFrom.exe.Exe
        • Size 1000KB
        • SHA256 70732d550f48a52b74236c47addf1368f61e50b53f4394eb5c51fb7fa2eecd89
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXD247.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXD247.tmp
        • Size 92KB
        • SHA256 11fc75379d314c660910d63cd3b7531140956f89575932050033afd6361f07a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OfficeClickToRun.exe.Exe

        • Path C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe.Exe
        • Size 4.3MB
        • SHA256 671129dc881c30ceeecfc1ee730a98b72cd842c1fdd5ee9f5fe8128677f146db
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXD56B.tmp

        • Path C:\Program Files\Mozilla Firefox\uninstall\RCXD56B.tmp
        • Size 100KB
        • SHA256 f94c062933a7da9a2756dd4191db997e1dbaf1c3ed7bf89280c44d8b55b33747
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXD59D.tmp

        • Path C:\Program Files\VideoLAN\VLC\RCXD59D.tmp
        • Size 92KB
        • SHA256 d25775a48a61f4153665da747ee3b4e3c511211e2b83cdcea3b6eb51ed280542
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a43BB.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a43BB.bat
        • Size 680B
        • SHA256 2adcc8e7f62dbfca8a6b1b44a8a8b9d67e058f42473f5697a1d0b01cf314f14d
        • 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/1064-8-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4064-15-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4788-18-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4788-889-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4788-1260-0x0000000000400000-0x0000000000429000-memory.dmp