General

  • Target

    81d81a4a1c7d17823e510b3fa647abda0c4508d3811233e9863b5f15e56cd04f

  • Size

    1.2MB

  • Sample

    201008-39kpkymg16

  • MD5

    a8fab811ecaa6103c0b281f2b15157f7

  • SHA1

    1981e33ace0a993984ff31dd3ea3e7412c70db7a

  • SHA256

    81d81a4a1c7d17823e510b3fa647abda0c4508d3811233e9863b5f15e56cd04f

  • SHA512

    f02bec00bd22c51b5e4e5d1ebf02ead779f3bef223540cea5b58163fb6257af24b3848bfd6142abb31bd5b735a6cd3428595c6aeb5ec2e4739f50944c7885fd1

Malware Config

Targets

    • Target

      81d81a4a1c7d17823e510b3fa647abda0c4508d3811233e9863b5f15e56cd04f

    • Size

      1.2MB

    • MD5

      a8fab811ecaa6103c0b281f2b15157f7

    • SHA1

      1981e33ace0a993984ff31dd3ea3e7412c70db7a

    • SHA256

      81d81a4a1c7d17823e510b3fa647abda0c4508d3811233e9863b5f15e56cd04f

    • SHA512

      f02bec00bd22c51b5e4e5d1ebf02ead779f3bef223540cea5b58163fb6257af24b3848bfd6142abb31bd5b735a6cd3428595c6aeb5ec2e4739f50944c7885fd1

    • Matrix Ransomware

      Targeted ransomware with information collection and encryption functionality.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Sets service image path in registry

    • UPX packed file

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

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Modifies service

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks