Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/04/2026, 03:47

General

  • Target
    2026-04-17_88ecaed88b0a173de26c33d37599f1cd_elex_wannacry.exe
  • Size 110KB
  • Sample260417-ecafaahw61
  • SHA256 1257bae4562cd514089d7baece80ebfb4825c40ef54b205577e75edf1f5e588f
  • 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 3 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 3 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-17_88ecaed88b0a173de26c33d37599f1cd_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-17_88ecaed88b0a173de26c33d37599f1cd_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:3936
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2136
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4708
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a5C92.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1760
      • C:\Users\Admin\AppData\Local\Temp\2026-04-17_88ecaed88b0a173de26c33d37599f1cd_elex_wannacry.exe
        "C:\Users\Admin\AppData\Local\Temp\2026-04-17_88ecaed88b0a173de26c33d37599f1cd_elex_wannacry.exe"
        3⤵
        • Executes dropped EXE
        PID:4076
    • 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:1276
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3000
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3808
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2568
  • 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:3128

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCXF800.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCXF800.tmp
        • Size 79KB
        • SHA256 cbe2e6631b44e298d6577360781ad7acc070c9bbc62dc7b2029508c37ee553ab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF9D2.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\RCXF9D2.tmp
        • Size 89KB
        • SHA256 638d37b85ef0f171a8777164fb066c1b37aa14067dbe0c18cf27b1590e56265a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXFAA4.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCXFAA4.tmp
        • Size 76KB
        • SHA256 1d323afb9bd54c6be88162f24ce210186db28794595e1823f6e4915d8cf22ef4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXF943.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCXF943.tmp
        • Size 104KB
        • SHA256 51afb2080b2e0148efb18ec5d6f660909d93eb0aaab1d50f700b9912ccba06e7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXFB9F.tmp

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\RCXFB9F.tmp
        • Size 85KB
        • SHA256 1f63aa44ef51e1e1c8641ed0bbedcb8af440ba54716608afa8418ab804d08c06
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXEAE0.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXEAE0.tmp
        • Size 77KB
        • SHA256 0e0d58f4567c5f2da3754bc43a7a059f6196976cedc8507dffb06f372741a135
        • MD5 SHA1 SHA512 SSDEEP TLSH

        JoinUpdate.exe.Exe

        • Path C:\Program Files\JoinUpdate.exe.Exe
        • Size 472KB
        • SHA256 f7f4e384cd13e7dfd7e0f202f8ab4b443ba925b1c22ee4963df0c7a332030022
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OfficeClickToRun.exe.Exe

        • Path C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe.Exe
        • Size 4.2MB
        • SHA256 998a67a3844506cfc8c81b17c27960cce73d729e9156e5e8feb35d1a28bf9401
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXED76.tmp

        • Path C:\Program Files\Mozilla Firefox\RCXED76.tmp
        • Size 77KB
        • SHA256 fe97474d45b781c4e5405ac2a4ddeffde05f638d252120915b1b6d4028db26b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX83.tmp

        • Path C:\ProgramData\Package Cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\RCX83.tmp
        • Size 78KB
        • SHA256 8087942b71b13a708b29f55a85a82eb79197065f740720cbaddcf5584906942e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a5C92.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a5C92.bat
        • Size 680B
        • SHA256 0edab0505681e44f6285078e09813975ab3d180de58779309c869ea21ae1f5dd
        • MD5 SHA1 SHA512 TLSH

        2026-04-17_88ecaed88b0a173de26c33d37599f1cd_elex_wannacry.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-04-17_88ecaed88b0a173de26c33d37599f1cd_elex_wannacry.exe.exe
        • Size 20KB
        • SHA256 1957c76d58b2e76d04b682a7a6cfd264114a3b79a6951790b598838c1b213b2d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 89KB
        • SHA256 a810a0accd8059219f2172f2cd49b775dda664f41bb6b4c2a35931c42b93a57d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

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

        memory/1276-18-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/1276-847-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/1276-1260-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/3128-16-0x0000000000400000-0x0000000000425000-memory.dmp

        memory/3936-9-0x0000000000400000-0x0000000000425000-memory.dmp