General

  • Target

    file.exe

  • Size

    10.9MB

  • Sample

    231122-ccn8bsad9z

  • MD5

    e9803cbb6c6983f66221c2806cb4db29

  • SHA1

    be7dca4853a2202ca6a39cea5baf3c6019c48950

  • SHA256

    4329b1deaf46731c0e7a55e4ca9adaefa6daa9f8f6015c8ece22dee784898c18

  • SHA512

    47577ece52ceeb30ae5eb62db8b34d3d9bbedd973624ca0d7b5f72d94c6a88a7503af6de6b737e78cfd1ba1507af89290bfdd6206ee8baa4c73bddc600ee5808

  • SSDEEP

    98304:5YyXHUFVhcJu+3gPqajeIef22tXG9su3/IRGL/gCVzcXcbDwelg2RMYKqUrNqEK0:5Yk/0ef2B9L/NcM42RfKqUrNqT0

Malware Config

Extracted

Family

gozi

Targets

    • Target

      file.exe

    • Size

      10.9MB

    • MD5

      e9803cbb6c6983f66221c2806cb4db29

    • SHA1

      be7dca4853a2202ca6a39cea5baf3c6019c48950

    • SHA256

      4329b1deaf46731c0e7a55e4ca9adaefa6daa9f8f6015c8ece22dee784898c18

    • SHA512

      47577ece52ceeb30ae5eb62db8b34d3d9bbedd973624ca0d7b5f72d94c6a88a7503af6de6b737e78cfd1ba1507af89290bfdd6206ee8baa4c73bddc600ee5808

    • SSDEEP

      98304:5YyXHUFVhcJu+3gPqajeIef22tXG9su3/IRGL/gCVzcXcbDwelg2RMYKqUrNqEK0:5Yk/0ef2B9L/NcM42RfKqUrNqT0

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Modifies Windows Defender Real-time Protection settings

    • UAC bypass

    • Windows security bypass

    • Modifies boot configuration data using bcdedit

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Registers COM server for autorun

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Windows security modification

    • 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

    • 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

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks