Extracted

• • Target

    http://malware download

  Score

  10^/10

  crimsonratbootkitdiscoveryevasionpersistenceransomwarerattrojanupx

  • CrimsonRAT main payload

  • CrimsonRat

    Crimson RAT is a malware linked to a Pakistani-linked threat actor.

    ratcrimsonrat

  • Disables Task Manager via registry modification

    evasion

  • Downloads MZ/PE file

  • 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.

  • Executes dropped EXE

  • UPX packed file

    Detects executables packed with UPX/modified UPX open source packer.

    upx

  • 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

    evasiontrojan

  • Legitimate hosting services abused for malware hosting/C2

  • Writes to the Master Boot Record (MBR)

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence

  • Drops file in System32 directory

  • Sets desktop wallpaper using registry

    ransomware
  behavioral1