Resubmissions

15/05/2026, 15:45

260515-s7hl2afw9n3

06/05/2026, 03:01

260506-dhxbkahz2x

06/05/2026, 02:44

260506-c794aahy4v9

06/05/2026, 02:41

260506-c6mllahy2x4

General

  • Target
    Bubbles.scr
  • Size 864KB
  • Sample260506-c794aahy4v
  • SHA256 e0c3f0794ff8f4e2091ad73445b3a8b14c745124ad6907202fc6c1c8e674d99d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Bubbles.scr
    • Size 864KB
    • SHA256 e0c3f0794ff8f4e2091ad73445b3a8b14c745124ad6907202fc6c1c8e674d99d
    • 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

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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

    • Contacts third-party web service commonly abused for C2

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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks