General

  • Target

    afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e.zip

  • Size

    106KB

  • Sample

    240418-wp4y4acb5x

  • MD5

    05f0ed02d9c855f6758edf858354964d

  • SHA1

    d0c1e034661f6e26e8bb8b828cd3eb31e5282ad4

  • SHA256

    1c2cd97c6e7826df5b0281dcf54a65068a9a1caf4224ebba739a86a54dc51665

  • SHA512

    f832829ab3c0424bbf5f772c0202451bc6765c62636e2e202fee6c57b1aa8c5ffc0ef13c14eed126948c4e2dd0b841455689048e725e7a37ef28c67d4f8e90da

  • SSDEEP

    3072:wlmOTMSU9KLh2k4WZlvxPWuaqxLAYIje5dw:H3SUgp/zxt0YX5dw

Malware Config

Targets

    • Target

      afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e.exe

    • Size

      164KB

    • MD5

      08b304d01220f9de63244b4666621bba

    • SHA1

      b7f9dd8ee3434b35fbb3395f69ff43fd5112a0c6

    • SHA256

      afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e

    • SHA512

      162cc0fb48615c67ce6e104ca462c41aba79bad0d5409e837b300cffc34a1c9bed63f603eee7091b93edfcd772d8ab1e180fcb3aae6b07fe24413b8505815ae9

    • SSDEEP

      3072:fHynAdzu0t5GtE13lkAB9z3KJZ3fCI1AjZ7yXgpiqQp:fHKautY3TzaJZarjZeXgpn

    • HydraCrypt

      Relatively unsophisticated ransomware family based on leaked CrypBoss source code.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (881) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Checks computer location settings

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

    • Drops startup file

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks