Overview

overview

10

Static

static

10

2026-06-26...yn.exe

windows10-2004-x64

10

2026-06-26...yn.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 11:48

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General

  • Target
    2026-06-26_db6a18e0db332af45cd6c1c12698ca4a_cobalt-strike_elex_icedid_swisyn.exe
  • Size 400KB
  • Sample260629-nyjeracs7w
  • SHA256 50b7d56d93ed3a12393ad7a28002f8e24b242c9c47fe35b14eda3a56a2bd9565
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverypersistence

Malware Config

Signatures

  • Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
    defense_evasion
  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
  • Detects executables embedding registry key / value combination indicative of disabling Windows Defen 2 IoCs
  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

    persistence
  • Executes dropped EXE 8 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-26_db6a18e0db332af45cd6c1c12698ca4a_cobalt-strike_elex_icedid_swisyn.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-26_db6a18e0db332af45cd6c1c12698ca4a_cobalt-strike_elex_icedid_swisyn.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:6100
    • \??\c:\users\admin\appdata\local\temp\2026-06-26_db6a18e0db332af45cd6c1c12698ca4a_cobalt-strike_elex_icedid_swisyn.exe 
      c:\users\admin\appdata\local\temp\2026-06-26_db6a18e0db332af45cd6c1c12698ca4a_cobalt-strike_elex_icedid_swisyn.exe 
      2⤵
      • Executes dropped EXE
      PID:6388
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4856
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visibility of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5984
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:7108
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visibility of hidden/system files in Explorer
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3252
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:3356
  • C:\Users\Admin\AppData\Local\Temp\WinSysKdrv.exe
    "C:\Users\Admin\AppData\Local\Temp\WinSysKdrv.exe"
    1⤵
    • Sets service image path in registry
    • Executes dropped EXE
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    PID:1640
  • C:\Users\Admin\AppData\Local\Temp\EmbeddedDriverService.sys
    C:\Users\Admin\AppData\Local\Temp\EmbeddedDriverService.sys
    1⤵
    • Executes dropped EXE
    PID:4796

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        EmbeddedDriverService.sys
        • Path C:\Users\Admin\AppData\Local\Temp\EmbeddedDriverService.sys
        • Size 34KB
        • SHA256 70bcec00c215fe52779700f74e9bd669ff836f594df92381cbfb7ee0568e7a8b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        WinSysKdrv.exe
        • Path C:\Users\Admin\AppData\Local\Temp\WinSysKdrv.exe
        • Size 147KB
        • SHA256 be495b5cd25cba230cc88aa99d34f2f7b70201b7047ae7a605950756acce215c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        icsys.icn.exe
        • Path C:\Windows\Resources\Themes\icsys.icn.exe
        • Size 135KB
        • SHA256 0dc5bbbe8028aa501b76e075ad84ee51431d631319f4f52ac621cf763be961e4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        2026-06-26_db6a18e0db332af45cd6c1c12698ca4a_cobalt-strike_elex_icedid_swisyn.exe 
        • Path \??\c:\users\admin\appdata\local\temp\2026-06-26_db6a18e0db332af45cd6c1c12698ca4a_cobalt-strike_elex_icedid_swisyn.exe 
        • Size 265KB
        • SHA256 a09b8f3482137394a421f6a96eaa3664f468ddfbcdf01651dae8fc0898e9a13e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        spoolsv.exe
        • Path \??\c:\windows\resources\spoolsv.exe
        • Size 135KB
        • SHA256 1cbd07127de55d49c67c22a3676128fd6d10add62398423186db1b219daf29c7
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        svchost.exe
        • Path \??\c:\windows\resources\svchost.exe
        • Size 135KB
        • SHA256 99e875b8e292fd136ceec0587916e088335cf57308e6f975f8576961be41d449
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        explorer.exe
        • Path \??\c:\windows\resources\themes\explorer.exe
        • Size 135KB
        • SHA256 e46b44bb5e7d774c3697a4a158f67decc0745e435da13801813dadae96aea141
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3252-61-0x0000000000400000-0x000000000041F000-memory.dmp
        Download

        memory/3356-53-0x0000000000400000-0x000000000041F000-memory.dmp
        Download

        memory/4856-55-0x0000000000400000-0x000000000041F000-memory.dmp
        Download

        memory/5984-60-0x0000000000400000-0x000000000041F000-memory.dmp
        Download

        memory/6100-56-0x0000000000400000-0x000000000041F000-memory.dmp
        Download

        memory/6100-0-0x0000000000400000-0x000000000041F000-memory.dmp
        Download

        memory/7108-54-0x0000000000400000-0x000000000041F000-memory.dmp
        Download