Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/07/2026, 22:23

General

  • Target
    2026-07-16_b72429b8f3926166c97c5c7a2c039097_cryptbot_icedid_luca-stealer_njrat_stealc.exe
  • Size 33.5MB
  • Sample260716-2arccafs3r
  • SHA256 724559b4ec40abf0ba81332f35fc387ae33684faac17f38f671c69f60c637fa7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (276) files with added filename extension

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

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 28 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
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Detects Pyinstaller 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-16_b72429b8f3926166c97c5c7a2c039097_cryptbot_icedid_luca-stealer_njrat_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-16_b72429b8f3926166c97c5c7a2c039097_cryptbot_icedid_luca-stealer_njrat_stealc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4092
    • C:\Users\Admin\AppData\Local\Temp\robux.exe
      "C:\Users\Admin\AppData\Local\Temp\robux.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5732
      • C:\Users\Admin\AppData\Local\Temp\robux.exe
        "C:\Users\Admin\AppData\Local\Temp\robux.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4404
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c "ver"
          4⤵
            PID:352
      • C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe
        "C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2596
        • C:\Windows\system32\cmd.exe
          "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\5A7A.tmp\5A7B.tmp\5A7C.bat C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:5876
          • C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe
            "C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe" hide
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3844
            • C:\Windows\system32\cmd.exe
              "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\5AC8.tmp\5AC9.tmp\5ACA.bat C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe hide"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1592
              • C:\Windows\system32\reg.exe
                reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "WindowsStartup" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe" /f
                6⤵
                • Adds Run key to start application
                PID:2532
              • C:\Windows\system32\wscript.exe
                wscript.exe ""
                6⤵
                  PID:5480
      • C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe
        C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe
        1⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1680
        • C:\Windows\system32\cmd.exe
          "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\60F2.tmp\60F3.tmp\60F4.bat C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5700
          • C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe
            "C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe" hide
            3⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1480
            • C:\Windows\system32\cmd.exe
              "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\621B.tmp\621C.tmp\621D.bat C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe hide"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1072
              • C:\Windows\system32\reg.exe
                reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "WindowsStartup" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe" /f
                5⤵
                • Adds Run key to start application
                PID:4132
              • C:\Windows\system32\wscript.exe
                wscript.exe ""
                5⤵
                  PID:4548

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              5A7C.bat

              • Path C:\Users\Admin\AppData\Local\Temp\5A7A.tmp\5A7B.tmp\5A7C.bat
              • Size 1KB
              • SHA256 9b2f29ba29a38e97c9cea6a0c2197fe2a06e1d78eea9c62fb6a6fae25d52c650
              • MD5 SHA1 SHA512 TLSH

              WindowsStartup.exe

              • Path C:\Users\Admin\AppData\Local\Temp\WindowsStartup.exe
              • Size 90KB
              • SHA256 62fccf5ac90447ca2ad9b6414013b68054b54b51b4fa66bb0aa376f65a63db29
              • MD5 SHA1 SHA512 SSDEEP TLSH

              81d243bd2c585b0f4821__mypyc.cp311-win_amd64.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\81d243bd2c585b0f4821__mypyc.cp311-win_amd64.pyd
              • Size 211KB
              • SHA256 89b688b3848e196de02a444c72cfc25bb3efebaba84a28469ac1e7f5738e0564
              • MD5 SHA1 SHA512 SSDEEP TLSH

              VCRUNTIME140.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\VCRUNTIME140.dll
              • Size 116KB
              • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
              • MD5 SHA1 SHA512 SSDEEP TLSH

              VCRUNTIME140_1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\VCRUNTIME140_1.dll
              • Size 48KB
              • SHA256 a113f192195f245f17389e6ecbed8005990bcb2476ddad33f7c4c6c86327afe5
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _asyncio.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_asyncio.pyd
              • Size 63KB
              • SHA256 746bc8fa88282afe19dc60e426cc0a75bea3bd137cca06a0b57a30bd31459403
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _bz2.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_bz2.pyd
              • Size 82KB
              • SHA256 00b8ca9a338d2b47285c9e56d6d893db2a999b47216756f18439997fb80a56e3
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _cffi_backend.cp311-win_amd64.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_cffi_backend.cp311-win_amd64.pyd
              • Size 174KB
              • SHA256 8100f667a3f64eeb37b9326d0c53a931e0ea3cea4ade5dbdc638c368355c0948
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _ctypes.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_ctypes.pyd
              • Size 121KB
              • SHA256 c148292328f0aab7863af82f54f613961e7cb95b7215f7a81cafaf45bd4c42b7
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _decimal.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_decimal.pyd
              • Size 249KB
              • SHA256 980a63f2b39cf16910f44384398e25f24482346a482addb00de42555b17d4278
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _elementtree.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_elementtree.pyd
              • Size 125KB
              • SHA256 02e30b6a2bee5be5336e40a9c89575603051bde86f9c9cdc78b7fa7d9b7bd1f0
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _hashlib.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_hashlib.pyd
              • Size 63KB
              • SHA256 87dd0c858620287454fd6d31d52b6a48eddbb2a08e09e8b2d9fdb0b92200d766
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _lzma.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_lzma.pyd
              • Size 155KB
              • SHA256 f5e01b516c2c23035f7703e23569dec26c5616c05a929b2580ae474a5c6722c5
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _multiprocessing.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_multiprocessing.pyd
              • Size 33KB
              • SHA256 975c1947798e3c39898c86675ca1eb68249f77361f41f172f9800275227213b9
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _overlapped.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_overlapped.pyd
              • Size 50KB
              • SHA256 ca106e4dfdeafeabf9e98956d3d8d0cb73e109f1a96f1a7e35bc47dbd7c7e164
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _queue.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_queue.pyd
              • Size 31KB
              • SHA256 3f8e7e6aa13b417acc78b63434fb1144e6319a010a9fc376c54d6e69b638fe4c
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _socket.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_socket.pyd
              • Size 77KB
              • SHA256 a19e3c7c03ef1b5625790b1c9c42594909311ab6df540fbf43c6aa93300ab166
              • MD5 SHA1 SHA512 SSDEEP TLSH

              _ssl.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_ssl.pyd
              • Size 174KB
              • SHA256 ba5388d6a6557d431e086734a3323621dc447f63ba299b0a815e5837cf869678
              • MD5 SHA1 SHA512 SSDEEP TLSH

              cp1252.enc

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_tcl_data\encoding\cp1252.enc
              • Size 1KB
              • SHA256 741859cf238c3a63bbb20ec6ed51e46451372bb221cfff438297d261d0561c2e
              • MD5 SHA1 SHA512 TLSH

              _tkinter.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\_tkinter.pyd
              • Size 62KB
              • SHA256 6f7bdc2f60a1795b58ec7015ec262d6b234aa8d0f022185de0f52bac4adab449
              • MD5 SHA1 SHA512 SSDEEP TLSH

              base_library.zip

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\base_library.zip
              • Size 1.4MB
              • SHA256 8917a314de921409e610b84c19b7ecb6ac6e73810514f6b3205c020b7e750cb8
              • MD5 SHA1 SHA512 SSDEEP TLSH

              cd.cp311-win_amd64.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\charset_normalizer\cd.cp311-win_amd64.pyd
              • Size 10KB
              • SHA256 45a9cb1664e2e26ea183d34652869a6a7183b0b2018e151da1e3c88213e8bc8c
              • MD5 SHA1 SHA512 SSDEEP TLSH

              libcrypto-3.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\libcrypto-3.dll
              • Size 5.0MB
              • SHA256 05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de
              • MD5 SHA1 SHA512 SSDEEP TLSH

              libffi-8.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\libffi-8.dll
              • Size 38KB
              • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
              • MD5 SHA1 SHA512 SSDEEP TLSH

              libssl-3.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\libssl-3.dll
              • Size 768KB
              • SHA256 2e9fbcd8f7fdc13a5179533239811456554f2b3aa2fb10e1b17be0df81c79006
              • MD5 SHA1 SHA512 SSDEEP TLSH

              pyexpat.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\pyexpat.pyd
              • Size 194KB
              • SHA256 c7c7564f7f874fb660a46384980a2cf28bc3e245ca83628a197ccf861eab5560
              • MD5 SHA1 SHA512 SSDEEP TLSH

              python3.DLL

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\python3.DLL
              • Size 65KB
              • SHA256 db84bc052cfb121fe4db36242ba5f1d2c031b600ef5d8d752cf25b7c02b6bac6
              • MD5 SHA1 SHA512 SSDEEP TLSH

              python311.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\python311.dll
              • Size 5.5MB
              • SHA256 0817a2a657a24c0d5fbb60df56960f42fc66b3039d522ec952dab83e2d869364
              • MD5 SHA1 SHA512 SSDEEP TLSH

              select.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\select.pyd
              • Size 29KB
              • SHA256 bae0974390945520eb99ab32486c6a964691f8f4a028ac408d98fa8fb0db7d90
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tcl86t.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\tcl86t.dll
              • Size 1.8MB
              • SHA256 4e699ff2d6d147d0586c8c77be5a18f20ca0758f432d7b0f489223f2fa4dd221
              • MD5 SHA1 SHA512 SSDEEP TLSH

              tk86t.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\tk86t.dll
              • Size 1.5MB
              • SHA256 b6af038120f2b8644c7ce1e11917f410009848287622135d7e386f90d28a831c
              • MD5 SHA1 SHA512 SSDEEP TLSH

              unicodedata.pyd

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI57322\unicodedata.pyd
              • Size 1.1MB
              • SHA256 37c68617fa02a2cadced17ef724e2d450ef12a8a37215da789a4679fde1c5c02
              • MD5 SHA1 SHA512 SSDEEP TLSH

              log.enc

              • Path C:\Users\Admin\AppData\Local\Temp\log.enc
              • Size 3KB
              • SHA256 f82eed51d44f196139991c38086b8105bb0dcfd2a619bf9ffe250be8a0665080
              • MD5 SHA1 SHA512 TLSH

              log.enc

              • Path C:\Users\Admin\AppData\Local\Temp\log.enc
              • Size 4KB
              • SHA256 e997dda1d6e7a8009546e6ebd6ef15f6fecfb867a7874281dae669c8c7847505
              • MD5 SHA1 SHA512 SSDEEP TLSH

              robux.exe

              • Path C:\Users\Admin\AppData\Local\Temp\robux.exe
              • Size 34.2MB
              • SHA256 79cd9a2f4de3fab58b6a575c7c7943b0fedf90d38703ffdc5815f6f300a2eee9
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/2596-164-0x0000000000417000-0x0000000000418000-memory.dmp

              memory/4404-2945-0x0000026DABE70000-0x0000026DAC0F9000-memory.dmp