General

  • Target
    78c4c523fe6a7de58d799cf84e41553d.exe
  • Size 2.6MB
  • Sample220103-jv1gmsbbc4
  • SHA256 8f9ff0227f4ce6ed3259d5f2f8bfd8c54496e9896ad5f522cdd768911be4b4bc
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      78c4c523fe6a7de58d799cf84e41553d.exe
    • Size 2.6MB
    • SHA256 8f9ff0227f4ce6ed3259d5f2f8bfd8c54496e9896ad5f522cdd768911be4b4bc
    • MD5 SHA1 SHA512
    • Arkei

      Arkei is an infostealer written in C++.

    • Arkei Stealer Payload

    • 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.

    • Deletes itself

    • Loads dropped DLL

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks