General

  • Target

    95d35da417f392a2054142c0451821e08468a5923f8c7c8f28eb840a4c4d04ae

  • Size

    4.1MB

  • Sample

    240520-ax8flabe8t

  • MD5

    3c3473cb40aead7e8294032d6fd61b9b

  • SHA1

    2112ad0a68534148b8917c7de72e1d9dc6bbe1c7

  • SHA256

    95d35da417f392a2054142c0451821e08468a5923f8c7c8f28eb840a4c4d04ae

  • SHA512

    ca8138fd89ad6cbbf517bff2ff94811386b48e805d9bf1bb960e4cd854e96eac8585f76383e23c5e2f17893bbe4a39b629acc868eb411cefc74fc9b4b31c3575

  • SSDEEP

    98304:psVQ+hudF4keJeyEqK0evsENr9r54Wa5Cc1nHXiv7:ps5hioeyE6OsERj43no

Malware Config

Targets

    • Target

      95d35da417f392a2054142c0451821e08468a5923f8c7c8f28eb840a4c4d04ae

    • Size

      4.1MB

    • MD5

      3c3473cb40aead7e8294032d6fd61b9b

    • SHA1

      2112ad0a68534148b8917c7de72e1d9dc6bbe1c7

    • SHA256

      95d35da417f392a2054142c0451821e08468a5923f8c7c8f28eb840a4c4d04ae

    • SHA512

      ca8138fd89ad6cbbf517bff2ff94811386b48e805d9bf1bb960e4cd854e96eac8585f76383e23c5e2f17893bbe4a39b629acc868eb411cefc74fc9b4b31c3575

    • SSDEEP

      98304:psVQ+hudF4keJeyEqK0evsENr9r54Wa5Cc1nHXiv7:ps5hioeyE6OsERj43no

    • 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