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Overview

overview

9

Static

static

3

2024-05-01...uk.exe

windows7-x64

9

2024-05-01...uk.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    2024-05-01_8e2e689ff61cf9a422d2800338098a3e_ryuk

  • Size

    8.5MB

  • Sample

    240501-bbq5vsdg75

  • MD5

    8e2e689ff61cf9a422d2800338098a3e

  • SHA1

    c871e4ca5e20d496cb69ab6d2df07be0592b6584

  • SHA256

    fcefde2ed490119c73ac4f89752e4c8225c66dd06e1fd3db2d7a1dd207e30613

  • SHA512

    47f9cc182f619c23b86ef60b24da831cd5373a81e8c3016cd97c71e667d3ad02763002c091c62b74988258588aa552af4cc586592c70ba10015c5dc461dd039a

  • SSDEEP

    98304:lj21qjo/OmhIVE0HeIOq/y6SCmtC8RHemKSPM7D/ClKlwvfW2T2ixwf:lq1q8/OmhIVBlOM5mtCgKSlKgfW8xw

Score
9/10
bootkitevasionpersistencetrojan

Malware Config

Targets

    • Target

      2024-05-01_8e2e689ff61cf9a422d2800338098a3e_ryuk

    • Size

      8.5MB

    • MD5

      8e2e689ff61cf9a422d2800338098a3e

    • SHA1

      c871e4ca5e20d496cb69ab6d2df07be0592b6584

    • SHA256

      fcefde2ed490119c73ac4f89752e4c8225c66dd06e1fd3db2d7a1dd207e30613

    • SHA512

      47f9cc182f619c23b86ef60b24da831cd5373a81e8c3016cd97c71e667d3ad02763002c091c62b74988258588aa552af4cc586592c70ba10015c5dc461dd039a

    • SSDEEP

      98304:lj21qjo/OmhIVE0HeIOq/y6SCmtC8RHemKSPM7D/ClKlwvfW2T2ixwf:lq1q8/OmhIVBlOM5mtCgKSlKgfW8xw

    Score
    9/10
    bootkitevasionpersistencetrojan

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks whether UAC is enabled

      evasiontrojan

    • Writes to the Master Boot Record (MBR)

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

      bootkitpersistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks