General

  • Target
    7l_cs-source_installer.exe
  • Size 6.4MB
  • Sample260802-r7k7gsbf32
  • SHA256 4d8e273a5dcece475d44da0b01f4bdd6f7edfeb3bb4ac45e9ba0e744781ff886
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      7l_cs-source_installer.exe
    • Size 6.4MB
    • SHA256 4d8e273a5dcece475d44da0b01f4bdd6f7edfeb3bb4ac45e9ba0e744781ff886
    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Downloads MZ/PE file

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Modifies Windows Firewall

    • Network Share Discovery

      Attempt to gather information on host network.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks