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
    23/04/2026, 03:46

General

  • Target
    2026-04-23_837170baf036e191c972fcf5682f1a54_elex_icedid_njrat.exe
  • Size 667KB
  • Sample260423-ebsv8sh18z
  • SHA256 44afaad7e64b0aa36b35e21d721421f85a9b139e33b13055a3c56e74db9e90e5
  • 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 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 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-23_837170baf036e191c972fcf5682f1a54_elex_icedid_njrat.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-23_837170baf036e191c972fcf5682f1a54_elex_icedid_njrat.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:2888
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2376
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:8
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a1D86.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4396
      • C:\Users\Admin\AppData\Local\Temp\2026-04-23_837170baf036e191c972fcf5682f1a54_elex_icedid_njrat.exe
        "C:\Users\Admin\AppData\Local\Temp\2026-04-23_837170baf036e191c972fcf5682f1a54_elex_icedid_njrat.exe"
        3⤵
        • Executes dropped EXE
        PID:4312
    • 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:3528
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2648
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3956
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1368
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1576
  • 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:4988

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        RCXB612.tmp

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RCXB612.tmp
        • Size 156KB
        • SHA256 d971a7156dc812ec5154991b0e0ff4fc933d691d27a103699641d23d696e0617
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXB809.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCXB809.tmp
        • Size 94KB
        • SHA256 44331735ae5e45a38c6daf3e4b1da5fb246b894a7324071363acf7e9305aab96
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DisabledGoogleUpdate.exe.Exe

        • Path C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe.Exe
        • Size 5.8MB
        • SHA256 a8bf4e4a428f85bdaf114eafe127c9d1fd316c5ed0b91a2859b2e43fd4c98400
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXBAAA.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\RCXBAAA.tmp
        • Size 103KB
        • SHA256 29e9c3fa8f2118116e01cdd4fba07e6cac2ca947bbfcce83bf6f051bb85912c6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXB98A.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCXB98A.tmp
        • Size 118KB
        • SHA256 e60045b42847bea435b27f3055adb0830d50c636b65fc58766c3a2078be50b6f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXBBA8.tmp

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\RCXBBA8.tmp
        • Size 100KB
        • SHA256 10289fc20b0049c5179158c55f69c69131f7e539bea63a5e913050f9e0e7e01b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe.Exe

        • Path C:\Program Files\7-Zip\7z.exe.Exe
        • Size 642KB
        • SHA256 9a738bd8e3cc7ed4d118bd151290d917b89c59b022fc8d529b3f4a09d08415d5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXAAF3.tmp

        • Path C:\Program Files\7-Zip\RCXAAF3.tmp
        • Size 91KB
        • SHA256 792b404b0ff261ab0eb682be3155d4d61610b6cf2c3c465c7be31798c5346063
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXABE3.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXABE3.tmp
        • Size 92KB
        • SHA256 70b3e17ea90d1b5e22b3c858edef799814e853227279d7224b49bdca3e9921f3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXAE59.tmp

        • Path C:\Program Files\Mozilla Firefox\RCXAE59.tmp
        • Size 91KB
        • SHA256 b4f05a0163ecfa5cf5996df2b16cf16c2e3500d3fc09946efedb4f913f7e16ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.exe.Exe

        • Path C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\setup.exe.Exe
        • Size 545KB
        • SHA256 4df4190ac6c7240c5c867ef411568093e64ddda80369e7aa7d8e4110de082b3c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a1D86.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a1D86.bat
        • Size 704B
        • SHA256 cac2cbd2505f74dd841cd4fd410f5904300ce8c2aab80c693b77c02496adc206
        • MD5 SHA1 SHA512 TLSH

        2026-04-23_837170baf036e191c972fcf5682f1a54_elex_icedid_njrat.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-04-23_837170baf036e191c972fcf5682f1a54_elex_icedid_njrat.exe.exe
        • Size 574KB
        • SHA256 0cf9864ae3a8679ed503f954a453452c93fa44f99ca6f39bbc5860abde7fd35e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 93KB
        • SHA256 07249cbb0fbe8f6a30922399e3b9d787a777da1f08ec951f83ffc18218320e47
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

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

        memory/2888-8-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/3528-20-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/3528-927-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/3528-1253-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/4312-19-0x000001A6F71B0000-0x000001A6F72CE000-memory.dmp

        memory/4988-16-0x0000000000400000-0x0000000000429000-memory.dmp