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General

  • Target

    a.msi

  • Size

    632KB

  • Sample

    231016-nz8q2aea3v

  • MD5

    31b8bb512a0f8c74461b4c6ae28cc5ef

  • SHA1

    f36be96e0f28edfcc5a232e9c4dfcdad0e94c151

  • SHA256

    7ff41b06ca3f24829baf4f67bc669be8421f70895dc1734b24948bd5f74beaf4

  • SHA512

    e2e86f0985016c44e347990166d7038829cc4593289d0fe8db1402bd039433243229b1dd4639f5aa81106a0fa9e1944163d001e114b11ef156bde3917304392e

  • SSDEEP

    12288:0s+WC8R/Mn4c6b3Diy95fP701DpHyNRAX7PaeAkCP437+8jOZy2KsGU6a4Ks:WWrBMnsO85fP701DhyHreAzgLhOE2Z39

Malware Config

Targets

    • Target

      a.msi

    • Size

      632KB

    • MD5

      31b8bb512a0f8c74461b4c6ae28cc5ef

    • SHA1

      f36be96e0f28edfcc5a232e9c4dfcdad0e94c151

    • SHA256

      7ff41b06ca3f24829baf4f67bc669be8421f70895dc1734b24948bd5f74beaf4

    • SHA512

      e2e86f0985016c44e347990166d7038829cc4593289d0fe8db1402bd039433243229b1dd4639f5aa81106a0fa9e1944163d001e114b11ef156bde3917304392e

    • SSDEEP

      12288:0s+WC8R/Mn4c6b3Diy95fP701DpHyNRAX7PaeAkCP437+8jOZy2KsGU6a4Ks:WWrBMnsO85fP701DhyHreAzgLhOE2Z39

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks