Extracted

• • Target
    file.exe
  • Size 1.2MB
  • SHA256 e5bccb979fef3945c64622c6ad4461947eca123465f2989d9f4af879fd467890
  • MD5 cc7e9ae7f054d90355af2dd379625ec3
  • SHA1 af381a40b1babd7f65f118608a958fc1aa48f115
  • SHA512 522c2af9cc67e4d3a76d0ae5ed234f273d3221155df0e8788ed5b96692ac3d186dabf68424d58347ac51f0cb8522e10aa727362039c04b178fef2127885b1f92
  • SSDEEP 12288:F0vDZDrODKXnas0hitTDlQzbW/wYEGOfg13u0LOoGg2Fd5bxWU:FOUDWnrtNQXvG31lyotStWU
  • TLSH
    T197452353A1F7EEB2F965B835221AAE04F31F75BA022743D21B96415A4613F11FE3C326
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  adwarelods132defense_evasiondiscoveryremcospersistenceprivilege_escalationransomwareratspywarestealertrojan

  • Family: Remcos

    Remcos is a closed-source remote control and surveillance software.

    ratremcos

  • Adds policy Run key to start application

    persistence

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Modifies RDP port number used by Windows

  • Patched UPX-packed file

    Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

  • Sets service image path in registry

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

    persistence

  • Checks BIOS information in registry

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

  • Checks computer location settings

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself

  • Event Triggered Execution: Component Object Model Hijacking

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

    persistenceprivilege_escalation

  • Executes dropped EXE

  • Impair Defenses: Safe Mode Boot

    defense_evasion

  • Loads dropped DLL

  • Reads user/profile data of web browsers

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer

  • Adds Run key to start application

    persistence

  • Checks installed software on the system

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery

  • Checks whether UAC is enabled

    defense_evasiontrojan

  • Enumerates connected drives

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

  • ConfuserEx .NET packer

    Detects ConfuserEx .NET packer.

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1behavioral2