General

  • Target
    4d50f5e9e375f71ff3ac1e806c60a728.exe
  • Size 2.6MB
  • Sample220226-j96l7sbddj
  • SHA256 3678e658fdc8ef06809080bc210a3bce96157e1940fa9bd107759a448ff6b281
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • cryptbot

C2
  • briymk62.top

  • 

Targets

    • Target
      4d50f5e9e375f71ff3ac1e806c60a728.exe
    • Size 2.6MB
    • SHA256 3678e658fdc8ef06809080bc210a3bce96157e1940fa9bd107759a448ff6b281
    • MD5 SHA1 SHA512
    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • 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.

    • Deletes itself

    • 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 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