Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c85afca80631f96…

MALICIOUS

PDF

41.4 KB Created: 2021-05-02 10:08:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7b2312c1b0c5686b8af1258fd15aaf61 SHA-1: 30e330d97c668af1df4e5e254bcda3f2833fd388 SHA-256: 8c85afca80631f96dfd15cd2593ac2296484a8da2d61dceabf145e8e0bb54d5c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document employs social engineering tactics, including a fake download button and a lure to install a browser extension, to trick the user into downloading a potentially malicious file. The embedded URLs point to resources related to game hacking and exploits, further indicating a malicious intent. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/how-to-use-cheat-engine-on-roblox-jailbreak-for-money-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/hack-para-hacker-todo-roblox-pastebin.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-robux-on-phone-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-money-hack-roblox-blackhawk-rescue-mission.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-non-free-models.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-cheat-in-weight-lifting-in-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/guuud-info-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-cheat-script-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/25-robux-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-items-2021-thumbnail.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/bubble-gum-simulator-roblox-hack.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000432a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x432A 24644 bytes
SHA-256: 4a177867ab9c0902b93371d2bcfb01eb723d28b09d26bb1ff553de79c94e79c8
font_01_sfnt_off00007b7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7C 19916 bytes
SHA-256: ce347cba2c7464f74c26fbbb9030e5df3777880b8a33d803efdb70e3e5c62047

Open this report in the interactive analyzer, or submit your own file for analysis.