Analysis

  • max time kernel
    150s
  • max time network
    133s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 03:15

General

  • Target
    2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
  • Size 5.0MB
  • Sample260802-dr7hwstard
  • SHA256 b3c5add639f62457650d81ed8930d90ffcbb2ff4baef84eb550ee76ee74953d2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 5 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 1 IoCs
  • Enumerates connected drives 3 TTPs 25 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 6 IoCs
  • Drops file in Windows directory 7 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5000
    • C:\Windows\temp0a1.exe
      "C:\Windows\temp0a1.exe" ejecuta
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4120
      • C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
        C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
        3⤵
        • Executes dropped EXE
        PID:916
  • C:\Windows\monsys.exe
    C:\Windows\monsys.exe
    1⤵
    • Executes dropped EXE
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Windows\temp0a1.exe
      "C:\Windows\temp0a1.exe" ejecuta
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Windows\monsys.exe
        C:\Windows\monsys.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4236

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        IntegratedOffice.exe

        • Path C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe
        • Size 9.0MB
        • SHA256 d10747b0f47288c62e9d285fccf9c5301fb2a24f99333528427ffe19fc52ce7a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
        • Size 47KB
        • SHA256 0af4f1cce16cb534ed2f59dee0d3c4b9b215a650d8a3fb9686b6643530af766a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bb.ico

        • Path C:\Windows\SysWOW64\bb.ico
        • Size 4KB
        • SHA256 823cbf89390733bd09d5541839786670d748064e50ff235928abd9e2433192b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        file0a0.dat

        • Path C:\Windows\file0a0.dat
        • Size 119B
        • SHA256 69e56fa1a4f926df9eb0ba6707be254994d6c7f0003cd02ec751a7c8d545c385
        • MD5 SHA1 SHA512 TLSH

        file0a0.dat

        • Path C:\Windows\file0a0.dat
        • Size 21B
        • SHA256 1aff43dec56e65377ceea446043303ce693f738a4f66cb9328b15ece74f87bf2
        • MD5 SHA1 SHA512

        monsys.exe

        • Path C:\Windows\monsys.exe
        • Size 4.9MB
        • SHA256 95ff667b36dbde1bb9bf740dd6f9e5b74ce9e0e9becd427600aca700261a8470
        • MD5 SHA1 SHA512 SSDEEP TLSH

        monsys.exe

        • Path C:\Windows\monsys.exe
        • Size 4.9MB
        • SHA256 59ad37b2d9de1201882468c6f0fcb25c6d0f9960b43308dc6b251958dfad168a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        temp0a1.exe

        • Path C:\Windows\temp0a1.exe
        • Size 5.0MB
        • SHA256 b3c5add639f62457650d81ed8930d90ffcbb2ff4baef84eb550ee76ee74953d2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/916-11-0x00007FF8998AF000-0x00007FF8998B0000-memory.dmp

        memory/916-12-0x00007FF899720000-0x00007FF89A0C4000-memory.dmp

        memory/916-26-0x00007FF899720000-0x00007FF89A0C4000-memory.dmp

        memory/916-10-0x0000000000F60000-0x0000000000F6E000-memory.dmp

        memory/2532-27-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2532-28-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2532-29-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2532-46-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2532-60-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4120-16-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4656-19-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/5000-2-0x0000000000400000-0x0000000000414000-memory.dmp