Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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 51 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 3 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:3032
  • 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 WriteProcessMemory
    PID:4976
    • C:\Windows\System32\MsiExec.exe
      C:\Windows\System32\MsiExec.exe -Embedding E5B8A83549BC3AC473D0EF945768332A C
      2⤵
      • Loads dropped DLL
      PID:332
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2572
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding F9A39D9963D185105C408C0C02226CCD
        2⤵
        • Loads dropped DLL
        • Modifies system executable filetype association
        • Modifies registry class
        PID:5052
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 2D49D0ADE94B974C9A7BFCD6E84FCFC9 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        PID:3728
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2308

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5902e5.rbs

          • Path C:\Config.Msi\e5902e5.rbs
          • Size 12.5MB
          • SHA256 2b78f62bd3e4945b9190a22eb054b01ed60f38e530a5fa147ef8ee8cd6591728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI68A8.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI68A8.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

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 17fefb6d428f8250e6abb6ede7e1c4ea5279f1d96c9f3fb42db5f91e8bf15988
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {6f5a153e-6594-42c2-b3ad-1bfb7cea6277}_OnDiskSnapshotProp

          • Path \??\Volume{63ef4f52-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{6f5a153e-6594-42c2-b3ad-1bfb7cea6277}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 f72f2c998321b761842d952c73f9808c977171b13ee9f8c5bfb499b7df29545f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/5052-68-0x000002238F5F0000-0x000002238F6D2000-memory.dmp