Extracted

• • Target

    .

  • Size

    147KB

  • MD5

    5670124ebca90d95d1a3aa2d46da9c13

  • SHA1

    2d7fe9f235ae1ba5110c50ba857617bf555b71a0

  • SHA256

    bf8bf13b893d190fd27bd23990c52933f2b265bb2e6834578f9eba19844e8435

  • SHA512

    9275df0cfa982c1ae557f79ca29ff7702e0696d1b02515fc78d7d2c4b52389ac02e346edb2adda949e681f1173c591ec702dfd51b111fbf0bcacfa706eb264c6

  • SSDEEP

    1536:oVkud8TPV9vK4DNvGR4Dbll1qKf+30vD932Os4DjHhqiS:+kPT3V+CllQHKNHhqiS

  Score

  10^/10

  crimsonratbootkitdiscoveryevasionmacromacro_on_actionpersistenceransomwareratspywarestealertrojan

  • CrimsonRAT main payload

  • CrimsonRat

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

    ratcrimsonrat

  • Modifies WinLogon for persistence

    persistence

  • Modifies Windows Defender Real-time Protection settings

    evasiontrojan

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • UAC bypass

    evasiontrojan

  • Modifies boot configuration data using bcdedit

    ransomwareevasion

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Modifies Installed Components in the registry

    persistence

  • Modifies RDP port number used by Windows

  • Office macro that triggers on suspicious action

    Office document macro which triggers in special circumstances - often malicious.

    macromacro_on_action

  • Sets service image path in registry

    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.

  • Executes dropped EXE

  • Loads dropped DLL

  • Modifies system executable filetype association

    persistence

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Registers COM server for autorun

    persistence

  • Unexpected DNS network traffic destination

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application

    persistence

  • Checks for any installed AV software in registry

  • 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

  • Drops desktop.ini file(s)

  • Enumerates connected drives

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

  • 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

  • AutoIT Executable

    AutoIT scripts compiled to PE executables.

  • Checks system information in the registry

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

  • Drops file in System32 directory

  behavioral1