Overview

overview

7

Static

static

3

f55c064aa7...3N.exe

windows7-x64

7

f55c064aa7...3N.exe

windows10-2004-x64

7

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General

  • Target

    f55c064aa77c0955914a5c79e8392af0dcea96024af64b8d156ed6a5592083e3N.exe

  • Size

    2.9MB

  • Sample

    241129-n9fs1atrew

  • MD5

    2a83c7edac1f4e31de9cda102f47dfc0

  • SHA1

    d4202f3450b1db3a2c588110864cb1d2773233e5

  • SHA256

    f55c064aa77c0955914a5c79e8392af0dcea96024af64b8d156ed6a5592083e3

  • SHA512

    18bfc2388b43c56b170e6d5d74f682bbb4079428b682f0c6063c8cc9805017c3ea1a239cb622a3290104d7ac8ba48d94d28a392d3a57df66db6af56db66f345c

  • SSDEEP

    49152:5v4TlAzB2CWOdtmzYXB1UHO/vAZeB/hbTChxKCnFnQXBbrtgb/iQvu0UHOYw:8yyYz/YZeBh6hxvWbrtUTrUHOYw

Score
7/10
bootkitdiscoverypersistence

Malware Config

Targets

    • Target

      f55c064aa77c0955914a5c79e8392af0dcea96024af64b8d156ed6a5592083e3N.exe

    • Size

      2.9MB

    • MD5

      2a83c7edac1f4e31de9cda102f47dfc0

    • SHA1

      d4202f3450b1db3a2c588110864cb1d2773233e5

    • SHA256

      f55c064aa77c0955914a5c79e8392af0dcea96024af64b8d156ed6a5592083e3

    • SHA512

      18bfc2388b43c56b170e6d5d74f682bbb4079428b682f0c6063c8cc9805017c3ea1a239cb622a3290104d7ac8ba48d94d28a392d3a57df66db6af56db66f345c

    • SSDEEP

      49152:5v4TlAzB2CWOdtmzYXB1UHO/vAZeB/hbTChxKCnFnQXBbrtgb/iQvu0UHOYw:8yyYz/YZeBh6hxvWbrtUTrUHOYw

    Score
    7/10
    bootkitdiscoverypersistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks