Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/07/2026, 04:29

General

  • Target
    2026-07-28_c3d538ecc7fc7c700d7ce6582be5b0e2_amadey_elex_remcos_smoke-loader_stop.exe
  • Size 19.4MB
  • Sample260728-e4l86aar4s
  • SHA256 84c9852507f06a431df0084a57e5afe6627369e018cb2cebfe8a0b0146fc1cad
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Loads dropped DLL 53 IoCs
  • Modifies system executable filetype association 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 55 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-28_c3d538ecc7fc7c700d7ce6582be5b0e2_amadey_elex_remcos_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-28_c3d538ecc7fc7c700d7ce6582be5b0e2_amadey_elex_remcos_smoke-loader_stop.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3424
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding 388C94956E9F0D8736FBFAF54363F904 C
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:240
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4304
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding A2401E800C5EEBACECE9893A6664A31C
        2⤵
        • Loads dropped DLL
        • Modifies system executable filetype association
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:5960
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 7892DC2AC870353DA4CA0837B863695F E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        PID:4084
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:5848

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a0717.rbs

          • Path C:\Config.Msi\e5a0717.rbs
          • Size 12.5MB
          • SHA256 629d0aba8f667453ea1b5fdb8f480c6de53747cacb227912b21c21680de18806
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI65B5.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI65B5.tmp
          • Size 849KB
          • SHA256 ce6a5c8fbba48e44a9e9512f455501d335380a3f11c13e4354b550c2bcfdb418
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Altova DiffDog 2011 sp1 (x64) Enterprise Edition.msi

          • Path C:\Windows\Downloaded Installations\{98848F61-606F-4829-A81E-60A2CDAF63C7}\Altova DiffDog 2011 sp1 (x64) Enterprise Edition.msi
          • Size 18.5MB
          • SHA256 1f886685ac4f753702f833a0d5f495617a60666296331c07c039474fe8b4dded
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/5960-68-0x000002A045620000-0x000002A045702000-memory.dmp