Overview

overview

10

Static

static

3

4b5f840d03...95.exe

windows7-x64

10

4b5f840d03...95.exe

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target

    4b5f840d0381c90787577aec69ea7495

  • Size

    248KB

  • Sample

    240108-n5nytaabg6

  • MD5

    4b5f840d0381c90787577aec69ea7495

  • SHA1

    d4f8a9670c7b694efb9fa5162a3b3fff23accdaa

  • SHA256

    b342aaf34701e2e7d38d09be6e95d6e5e71950ea1e6c88b0b4d8406f58f59d46

  • SHA512

    1f213978c5124dc7c844fae6c81c5680261f53eafdecc20730e13dc61d17367f97ca6b18d77dd31c78841ecf5b75a26f3cf1106d5c64f980ab1d99df55df481d

  • SSDEEP

    3072:nBLj8ixG7+Y4k3ZKE8z3/evEko/Oe7aTtXIRkLIYJxDBFya:nB3/07+Yt3ZKENvEBOe7aTt4uMYHdU

Score
10/10
bootkitevasionpersistence

Malware Config

Targets

    • Target

      4b5f840d0381c90787577aec69ea7495

    • Size

      248KB

    • MD5

      4b5f840d0381c90787577aec69ea7495

    • SHA1

      d4f8a9670c7b694efb9fa5162a3b3fff23accdaa

    • SHA256

      b342aaf34701e2e7d38d09be6e95d6e5e71950ea1e6c88b0b4d8406f58f59d46

    • SHA512

      1f213978c5124dc7c844fae6c81c5680261f53eafdecc20730e13dc61d17367f97ca6b18d77dd31c78841ecf5b75a26f3cf1106d5c64f980ab1d99df55df481d

    • SSDEEP

      3072:nBLj8ixG7+Y4k3ZKE8z3/evEko/Oe7aTtXIRkLIYJxDBFya:nB3/07+Yt3ZKENvEBOe7aTt4uMYHdU

    Score
    10/10
    bootkitevasionpersistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • Blocklisted process makes network request

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks