General

  • Target
    bytebreakerV2.zip
  • Size 13.6MB
  • Sample260702-h7tdesdx4t
  • SHA256 971b0e8354a70724869b9144caf29c0579b5c7309524e5c9b34e55512c5fc5b6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      bytebreakerV2/ByteBreaker.exe
    • Size 4.2MB
    • SHA256 805dc1a54e38543c64d7639b428cd4b17ccdb6521dfea2133ea9f3f5ccac8091
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • 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