General

  • Target

    NWDEiUim.exe

  • Size

    707KB

  • Sample

    210529-fnqr6q6y4n

  • MD5

    a547e8aca98f3566ebd0f48ef2137d71

  • SHA1

    24716beac8d9f8a46331bbe7c1286e727ad4b1be

  • SHA256

    9a58fcb6bf71775f7a5f833ea3780cdb67c421def1ff1851adc2061d366e0fdc

  • SHA512

    bcb590393d88d1481843f03e76f9fdaed30c940493ce854d06c7b67408846be5fa695b8bea6d41d984369ef6a6ee3180ba6fba4cb430587e0f00e61efbac56bf

Malware Config

Targets

    • Target

      NWDEiUim.exe

    • Size

      707KB

    • MD5

      a547e8aca98f3566ebd0f48ef2137d71

    • SHA1

      24716beac8d9f8a46331bbe7c1286e727ad4b1be

    • SHA256

      9a58fcb6bf71775f7a5f833ea3780cdb67c421def1ff1851adc2061d366e0fdc

    • SHA512

      bcb590393d88d1481843f03e76f9fdaed30c940493ce854d06c7b67408846be5fa695b8bea6d41d984369ef6a6ee3180ba6fba4cb430587e0f00e61efbac56bf

    • 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.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks