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General

  • Target

    55club.in_9.txt

  • Size

    193B

  • Sample

    240703-pff3catdre

  • MD5

    dfc294770ccea3fb956b408ad9c890bd

  • SHA1

    603476e91fd2afd29b287cfc663b5169bd77e442

  • SHA256

    5720d7965718a207a3560bdf1a3b8d29fbec86cbed84680c190fd59a2eb551b8

  • SHA512

    ed3400f497d58c12b774a7791d3dbd8d57e7e73847c07a3642e43d6bb67ef589b9ff8d6b3cbdbd87594eeb20901f335ff136b0db43aa298e648934eb72ebb017

Malware Config

Targets

    • Target

      55club.in_9.txt

    • Size

      193B

    • MD5

      dfc294770ccea3fb956b408ad9c890bd

    • SHA1

      603476e91fd2afd29b287cfc663b5169bd77e442

    • SHA256

      5720d7965718a207a3560bdf1a3b8d29fbec86cbed84680c190fd59a2eb551b8

    • SHA512

      ed3400f497d58c12b774a7791d3dbd8d57e7e73847c07a3642e43d6bb67ef589b9ff8d6b3cbdbd87594eeb20901f335ff136b0db43aa298e648934eb72ebb017

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • 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

    • Event Triggered Execution: Image File Execution Options Injection

    • 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.

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • 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

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Legitimate hosting services abused for malware hosting/C2

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks