Overview

overview

10

Static

static

401e7c5d4b...1c.exe

windows7-x64

10

401e7c5d4b...1c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    401e7c5d4b7bd65b184cf3a3eff6e923381e2656e43322ca279844285f358c1c

  • Size

    456KB

  • Sample

    221011-dep33sbgc7

  • MD5

    6d57aa2758da463892d1c8384ad5a330

  • SHA1

    044e84b4785161beed594b52945c1384b03139e5

  • SHA256

    401e7c5d4b7bd65b184cf3a3eff6e923381e2656e43322ca279844285f358c1c

  • SHA512

    a11a75d09dcdd3ee8322e317cd29cc47fe1a43e877692afcf82918142586c42f35aefcf63d56a72bbc50d5a8822261853ae3276fb6e3d9aa832192f535ecdc1c

  • SSDEEP

    12288:jEVXKpmokzif4JgTIoq43H2cE05nMx11DGkfb7i:jEtRLiAJgMe3H2cJCx1YOb7i

Score
10/10
bootkitevasionpersistence

Malware Config

Targets

    • Target

      401e7c5d4b7bd65b184cf3a3eff6e923381e2656e43322ca279844285f358c1c

    • Size

      456KB

    • MD5

      6d57aa2758da463892d1c8384ad5a330

    • SHA1

      044e84b4785161beed594b52945c1384b03139e5

    • SHA256

      401e7c5d4b7bd65b184cf3a3eff6e923381e2656e43322ca279844285f358c1c

    • SHA512

      a11a75d09dcdd3ee8322e317cd29cc47fe1a43e877692afcf82918142586c42f35aefcf63d56a72bbc50d5a8822261853ae3276fb6e3d9aa832192f535ecdc1c

    • SSDEEP

      12288:jEVXKpmokzif4JgTIoq43H2cE05nMx11DGkfb7i:jEtRLiAJgMe3H2cJCx1YOb7i

    Score
    10/10
    bootkitevasionpersistence

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks