Overview

overview

10

Static

static

3

cfc988c86f...5N.exe

windows7-x64

10

cfc988c86f...5N.exe

windows10-2004-x64

10

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General

  • Target

    cfc988c86fd5c974483ad21da0a4cfe2ecb1882109f047c1e1814aa4dbbd0db5N.exe

  • Size

    1.1MB

  • Sample

    241129-nra5ssxrfl

  • MD5

    476123ca662edc731548292444585790

  • SHA1

    158c56efc9421da958415e8806e7d2d6516535f5

  • SHA256

    cfc988c86fd5c974483ad21da0a4cfe2ecb1882109f047c1e1814aa4dbbd0db5

  • SHA512

    719892d5587801198a4cc9ed26221029176a18d831b3a0d00bcf21f0c170ebe753004b685029511978c3a3dce646710fd173bfe7beb1ef057abdd25dbb6ba6cc

  • SSDEEP

    24576:Zh7brn/kG9Pwrn/nOzMQGEvGH0RDDtAi1PDxwQo79mRUwbSlcfSgQ+n81v:ZhXrn/x9Pwrn/nOzMQGEvGHiDtN1dwQI

Score
10/10
bootkitdiscoverypersistence

Malware Config

Targets

    • Target

      cfc988c86fd5c974483ad21da0a4cfe2ecb1882109f047c1e1814aa4dbbd0db5N.exe

    • Size

      1.1MB

    • MD5

      476123ca662edc731548292444585790

    • SHA1

      158c56efc9421da958415e8806e7d2d6516535f5

    • SHA256

      cfc988c86fd5c974483ad21da0a4cfe2ecb1882109f047c1e1814aa4dbbd0db5

    • SHA512

      719892d5587801198a4cc9ed26221029176a18d831b3a0d00bcf21f0c170ebe753004b685029511978c3a3dce646710fd173bfe7beb1ef057abdd25dbb6ba6cc

    • SSDEEP

      24576:Zh7brn/kG9Pwrn/nOzMQGEvGH0RDDtAi1PDxwQo79mRUwbSlcfSgQ+n81v:ZhXrn/x9Pwrn/nOzMQGEvGHiDtN1dwQI

    Score
    10/10
    bootkitdiscoverypersistence

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops desktop.ini file(s)

    • 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 autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks