General

  • Target
    bbf3c7740a3507b482260efa0b4c4a82
  • Size 4.5MB
  • Sample210710-rpewxflydn
  • SHA256 3ce688f6b00b57a37f3ffa4c5410cc02ed5fa05eab37304d44e2d8399aa8b8e2
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      bbf3c7740a3507b482260efa0b4c4a82
    • Size 4.5MB
    • SHA256 3ce688f6b00b57a37f3ffa4c5410cc02ed5fa05eab37304d44e2d8399aa8b8e2
    • MD5 SHA1 SHA512
    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks