Extracted

• • Target

    .

  • Size

    147KB

  • MD5

    3455a5fab8e49aa216d8285e8abeee6b

  • SHA1

    010a55452220fad311eb189b090e3ac0ada2ad9d

  • SHA256

    eb701d9ccdf89c1e37e2c08b2b823614f975d3d0be03cb2a73c3798a4637f307

  • SHA512

    6a2a8aadc7a817a097f929dd758110475ffb65d788d0e7854d3f15f142ff08d98bbae80ae8edceac2f2380d3791707a9b615e8061ebaed2927dde0c65c0f8bbe

  • SSDEEP

    1536:o6kaad8mvVuCK4Dy1jR4Dllls4PeT30vD932Us4DjHhqiS:lk+m3698ll1gwdHhqiS

  Score

  10^/10

  crimsonratbootkitdiscoveryevasionmacromacro_on_actionpersistenceransomwareratspywarestealertrojan

  • CrimsonRAT main payload

  • CrimsonRat

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

    ratcrimsonrat

  • Suspicious use of NtCreateProcessExOtherParentProcess

  • Modifies boot configuration data using bcdedit

    ransomwareevasion

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Modifies Installed Components in the registry

    persistence

  • 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 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

  • Checks system information in the registry

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

  • Drops file in System32 directory

  behavioral1