General

  • Target
    ByteBreaker V2_62117537.exe
  • Size 583KB
  • Sample260628-fm24qafs8y
  • SHA256 ddbd930cf742882ea6cc10ea5495f8aec24003664b81257c1b3900f3627b6684
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      ByteBreaker V2_62117537.exe
    • Size 583KB
    • SHA256 ddbd930cf742882ea6cc10ea5495f8aec24003664b81257c1b3900f3627b6684
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks