General

  • Target

    GearWare.exe

  • Size

    344KB

  • Sample

    240508-nkl9gsab9s

  • MD5

    a784a198b4e30a5e7cdae7a63868ce7a

  • SHA1

    464fb3031192c7466e3e3cadd32a56aeffa3dca8

  • SHA256

    ef702c84cb2c0c6953e82c8f77219170d4633ba16010a7e19ca7fafbe9a519b6

  • SHA512

    4b3e7e3ea12b051b289776b78353a5418011825e3dfbd5e684e6a9f303c5d6e120652a3560da8f3063756b74314a50384dff3c7961b0d80da101d98b46e43ad1

  • SSDEEP

    3072:/7DhdC6kzWypvaQ0FxyNTBf6UW0AW2Okz+OKJA81a:/BlkZvaF4NTBCUW0AW2OzOKo

Malware Config

Targets

    • Target

      GearWare.exe

    • Size

      344KB

    • MD5

      a784a198b4e30a5e7cdae7a63868ce7a

    • SHA1

      464fb3031192c7466e3e3cadd32a56aeffa3dca8

    • SHA256

      ef702c84cb2c0c6953e82c8f77219170d4633ba16010a7e19ca7fafbe9a519b6

    • SHA512

      4b3e7e3ea12b051b289776b78353a5418011825e3dfbd5e684e6a9f303c5d6e120652a3560da8f3063756b74314a50384dff3c7961b0d80da101d98b46e43ad1

    • SSDEEP

      3072:/7DhdC6kzWypvaQ0FxyNTBf6UW0AW2Okz+OKJA81a:/BlkZvaF4NTBCUW0AW2OzOKo

    • Cobalt Strike reflective loader

      Detects the reflective loader used by Cobalt Strike.

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • Detect ZGRat V1

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • Stops running service(s)

    • 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

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • 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

    • Enumerates connected drives

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

    • Modifies powershell logging option

    • Writes to the Master Boot Record (MBR)

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Checks system information in the registry

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks