General

  • Target
    SilentHub Download Manager.exe
  • Size 13.1MB
  • Sample260724-pjdfmaywey
  • SHA256 e706b46d8a2ebbd6e7d38e691c1dbfba3c32cb11b410fecb63d333eaebe5d781
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      SilentHub Download Manager.exe
    • Size 13.1MB
    • SHA256 e706b46d8a2ebbd6e7d38e691c1dbfba3c32cb11b410fecb63d333eaebe5d781
    • 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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks