Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d0d339ebe6b2cb9…

MALICIOUS

PDF

42.1 KB Created: 2021-04-27 08:49:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 702d69e6359fa5cdd64fe7254edda44e SHA-1: 9408b3635405b4e536ac3711d2d2914500bb8245 SHA-256: 8d0d339ebe6b2cb977844aea0ea61d9dd9be307ba30e2506cde2006c250f025b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/hacks-to-get-free-robux-2021-game-hack PDF link annotation
    • http://www.saburai.ac.id/elibrary//repository/cheat-files-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-apk-hack-mega.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/hats-roblox-free.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-hack-de-dragon-ball-rage.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/robux-logo-hack.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/hacks-impulse-testing-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-free-robux-legit-with-proof.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-robux-really-easy.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-robux-generator-2021.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/hack-roblox-vehicle-simulator-2021.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_off000044f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44F8 26668 bytes
SHA-256: 96c4a0ba005f600fe2d4628250752a71b10e70e4b196bc2e8d51231f9c032df4
font_01_sfnt_off000080d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D0 18916 bytes
SHA-256: b77c598bdd5ea73b17ce737727eac3fafc981e9557117d684c903c857e3d989a

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