Resubmissions

28-05-2024 12:10

240528-pb241scb5v 8

28-05-2024 12:01

240528-n7dwmabd9v 8

General

  • Target

    Blank-Grabber-main.zip

  • Size

    1.2MB

  • Sample

    240528-pb241scb5v

  • MD5

    cf1622e33a46b0a9b7f88d0f031d679c

  • SHA1

    6af28cb842e880d2121cc6f1ea9176c07d852bef

  • SHA256

    1072efad667d604f609fd850a13e54507e23b5ad33b836436267144a4cbd28e2

  • SHA512

    d5768cab8a7c44f569dd9abbade6eb0a4cdce530e62e3b59ae19ddc7cab6782f2015c0b231568c9945c9fcb9e28ac8f7c4488d390416173c30a292f3e8b6dc57

  • SSDEEP

    24576:OmyJ4KPprRsfyj7JHdGddG4VfvTbkrqAItD6b6D8J7kKy:grBrufyHJ9s04FMr8D8YZ

Malware Config

Targets

    • Target

      Blank-Grabber-main/Blank Grabber/READme.txt

    • Size

      170B

    • MD5

      10a5016f49ef1acacd6998ace35d85e6

    • SHA1

      49eb4d70a5aea7f79c6e545d87b4863bfa350503

    • SHA256

      b30d3a21941310b108baf1dddfc8b363a81a033025ef045d267142eb9f9e78af

    • SHA512

      20ba3c146ef15afb526a4bd7842f4cafb0042e2258022fd3deaa8150656d10c45714bdc8c1e48434781841bae3a9f5bd4fbe081c2dfbdd14a22f36bb0b3048f6

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

    • 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.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Checks system information in the registry

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

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks