General

  • Target

    Fortnite CFFHOOK by Spyro.exe

  • Size

    2.0MB

  • Sample

    211024-vvt6eaeff6

  • MD5

    3febb821c9c21263bf4e04b451a02644

  • SHA1

    a8e13a65ab2cf7178f91789b2551eab05f937885

  • SHA256

    100fa8dbdf8aeb6605ce6aae5880d93f754fc8258cba143d68f861350f685efd

  • SHA512

    337896b6c1a2efb3b2b032f44afff8e6bb3412f15d3eb2c5a1d66ec0d98283e0e98de02146f7a079bebbe5f82587daf7cd6b53c6745b7995ae20cce293602ab1

Malware Config

Targets

    • Target

      Fortnite CFFHOOK by Spyro.exe

    • Size

      2.0MB

    • MD5

      3febb821c9c21263bf4e04b451a02644

    • SHA1

      a8e13a65ab2cf7178f91789b2551eab05f937885

    • SHA256

      100fa8dbdf8aeb6605ce6aae5880d93f754fc8258cba143d68f861350f685efd

    • SHA512

      337896b6c1a2efb3b2b032f44afff8e6bb3412f15d3eb2c5a1d66ec0d98283e0e98de02146f7a079bebbe5f82587daf7cd6b53c6745b7995ae20cce293602ab1

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

    • Checks BIOS information in registry

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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Writes to the Master Boot Record (MBR)

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Tasks