General

  • Target

    4a0922a0159bc33cdef65446e68468a4e45703e954d1e36422f56ade9598b45c

  • Size

    4.1MB

  • Sample

    240517-z87qwabg2z

  • MD5

    61e5f4d9e5e172282b8469c0c7797cbe

  • SHA1

    d1d24999ddd4f1f1d8949d0681ccb621e726fc1d

  • SHA256

    4a0922a0159bc33cdef65446e68468a4e45703e954d1e36422f56ade9598b45c

  • SHA512

    1b3db54db07310a1062a5ddc002f12bc490631360807b33ec7494e9f93e7df4c5ef4849469390c5e81d421449b5b7ef393c699767f8b8fcd33552a553129782f

  • SSDEEP

    98304:vjrHiscAnk4Z0f7mBZCfuP+pmwVLETOu5PKDHvrjVgO2G:7rhn/yCBZkM+pB3dzb

Malware Config

Targets

    • Target

      4a0922a0159bc33cdef65446e68468a4e45703e954d1e36422f56ade9598b45c

    • Size

      4.1MB

    • MD5

      61e5f4d9e5e172282b8469c0c7797cbe

    • SHA1

      d1d24999ddd4f1f1d8949d0681ccb621e726fc1d

    • SHA256

      4a0922a0159bc33cdef65446e68468a4e45703e954d1e36422f56ade9598b45c

    • SHA512

      1b3db54db07310a1062a5ddc002f12bc490631360807b33ec7494e9f93e7df4c5ef4849469390c5e81d421449b5b7ef393c699767f8b8fcd33552a553129782f

    • SSDEEP

      98304:vjrHiscAnk4Z0f7mBZCfuP+pmwVLETOu5PKDHvrjVgO2G:7rhn/yCBZkM+pB3dzb

    • Glupteba

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

    • Glupteba payload

    • Windows security bypass

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects executables Discord URL observed in first stage droppers

    • Detects executables containing URLs to raw contents of a Github gist

    • Detects executables containing artifacts associated with disabling Widnows Defender

    • Detects executables referencing many varying, potentially fake Windows User-Agents

    • Modifies boot configuration data using bcdedit

    • UPX dump on OEP (original entry point)

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • 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

MITRE ATT&CK Enterprise v15

Tasks