General

  • Target

    usfive_20210718-162832

  • Size

    472KB

  • Sample

    210718-2acs1wgcca

  • MD5

    91938ecb8df0cdc14dacfd947e451dfe

  • SHA1

    14c44c7422b1086fb8be98601731577ff67b2909

  • SHA256

    fa4452e8633985bc8a81893125afb876330b8e1f57613cc7d0ddb4a9d8f99dbb

  • SHA512

    9497e5dea30c7480021e09741c67b70e32265a09d45f27aff9203bfc6803b383d1995e7a4699b5a18f9ade24b3579c6fc294f2a918b5b13d721f2b683cf38847

Malware Config

Targets

    • Target

      usfive_20210718-162832

    • Size

      472KB

    • MD5

      91938ecb8df0cdc14dacfd947e451dfe

    • SHA1

      14c44c7422b1086fb8be98601731577ff67b2909

    • SHA256

      fa4452e8633985bc8a81893125afb876330b8e1f57613cc7d0ddb4a9d8f99dbb

    • SHA512

      9497e5dea30c7480021e09741c67b70e32265a09d45f27aff9203bfc6803b383d1995e7a4699b5a18f9ade24b3579c6fc294f2a918b5b13d721f2b683cf38847

    • DarkVNC

      DarkVNC is a malicious version of the famous VNC software.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • DarkVNC Payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks