General

  • Target
    cat downloader (1).exe
  • Size 14.0MB
  • Sample261018-vcmcvae16n
  • SHA256 26a2c21a92457c6634193f216c578a12147b47569b56074cb9d53a74e77e98e0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      cat downloader (1).exe
    • Size 14.0MB
    • SHA256 26a2c21a92457c6634193f216c578a12147b47569b56074cb9d53a74e77e98e0
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Looks for VirtualBox Guest Additions in registry

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • 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

    • 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.

    • Probable phishing domain

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks