Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 06:26

General

  • Target
    2026-08-04_88895ff6c10a525ad09b97de56721a01_cobalt-strike_elex_icedid_njrat_vidar.exe
  • Size 5.3MB
  • Sample260804-g7nbqsshqh
  • SHA256 b7c1aa25a333f050c6b89e2f6c19a269a9d86ac87e8f8673e180ff3d592ded40
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Deletes itself 1 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 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 6 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 WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-04_88895ff6c10a525ad09b97de56721a01_cobalt-strike_elex_icedid_njrat_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_88895ff6c10a525ad09b97de56721a01_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:3916
    • 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
      PID:5568
  • C:\Windows\PlayW32.exe
    C:\Windows\PlayW32.exe
    1⤵
    • Executes dropped EXE
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3124
    • 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
      PID:2888

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        OfficeC2RClient.exe

        • Path C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe
        • Size 23.5MB
        • SHA256 7ec708a024a98db37a56cd6c1de6dad074c054d0b1dc3df6a3315ad7dda81e86
        • MD5 SHA1 SHA512 SSDEEP TLSH

        PlayW32.exe

        • Path C:\Windows\PlayW32.exe
        • Size 55KB
        • SHA256 62b34c82fb790e9ef2c8d17de32eb75a2e4dfbe4c9a30efaf00974b8f1ebe0fb
        • 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 22B
        • SHA256 b389f076c61c93267ea9718d5d1cac18877101631ee33767dbb1888d7815c881
        • MD5 SHA1 SHA512

        file0a0.dat

        • Path C:\Windows\file0a0.dat
        • Size 119B
        • SHA256 99d19a9545f1087dec025a076f75250dc50018c9c5dd1ab31cbbd22a5991b8be
        • MD5 SHA1 SHA512 TLSH

        temp0a1.exe

        • Path C:\Windows\temp0a1.exe
        • Size 5.3MB
        • SHA256 b7c1aa25a333f050c6b89e2f6c19a269a9d86ac87e8f8673e180ff3d592ded40
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2888-15-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2888-16-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2888-17-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2888-24-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2888-48-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/3124-13-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/3916-2-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/5568-10-0x0000000000400000-0x0000000000414000-memory.dmp