General

  • Target

    Result.exe

  • Size

    2.6MB

  • Sample

    240711-xrzmtssemc

  • MD5

    60e22c787775c994f3549a43d7405176

  • SHA1

    de22c9522b5261859d9b1e013c6668c4aba026ce

  • SHA256

    a9fdbf63fe9832ad7d17ba7adf9f18dc0523d365b17940ad606a0e3c601ee14c

  • SHA512

    28aec7a11e32e9cc545e267b3e268e49897be4cc435ad907e9329ddc7757263d931bb9fd2bc278ae3e552ee0f4e193e9cc18256fc7f73b029946bc7e0f384283

  • SSDEEP

    49152:0bA3jgNDL4jc0NKPvNVXhEeJiV4wo/ImFBojA1ji5x7:0b/5L4jVUnN/EaiV4jImFU5x

Malware Config

Targets

    • Target

      Result.exe

    • Size

      2.6MB

    • MD5

      60e22c787775c994f3549a43d7405176

    • SHA1

      de22c9522b5261859d9b1e013c6668c4aba026ce

    • SHA256

      a9fdbf63fe9832ad7d17ba7adf9f18dc0523d365b17940ad606a0e3c601ee14c

    • SHA512

      28aec7a11e32e9cc545e267b3e268e49897be4cc435ad907e9329ddc7757263d931bb9fd2bc278ae3e552ee0f4e193e9cc18256fc7f73b029946bc7e0f384283

    • SSDEEP

      49152:0bA3jgNDL4jc0NKPvNVXhEeJiV4wo/ImFBojA1ji5x7:0b/5L4jVUnN/EaiV4jImFU5x

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

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

    • 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.

    • Blocklisted process makes network request

    • 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

    • Enumerates connected drives

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

    • 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 NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks