Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa83a352fd82294c…

MALICIOUS

PDF

44.0 KB Created: 2021-04-25 18:38:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 8188c9d69c712ab0227664bea6e33e25 SHA-1: 0a96fc1ce3d6becfe310981a0b307325b8ae264f SHA-256: aa83a352fd82294c183722dda76bea9327ddd19f4f8e9f15c4d23a76a0b0e608
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9868

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/roblox-cheat-engine-noclip-2021-august-game-hack In PDF document text
    • http://digilib.ivet.ac.id/repository/how-to-get-free-robux-free-codes.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/aincrad-online-free-beta-roblox.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/growbux-free-robux.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/robux-hack-dot-net.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/hack-robux-facile-fr.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/how-do-you-get-admin-by-hacking-roblox.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/roblox-dragon-ball-z-final-stand-cheat.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/roblox-remove-anti-cheat.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/roblox-hide-n-seek-cheats.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/medkit-free-robux.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000401c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x401C 25488 bytes
SHA-256: 08b6cec1e162adaad638c3d7ed556b2bf013d919e1fe22aebe0aa6eff0c45797
font_01_sfnt_off000079e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E4 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off0000868c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x868C 19408 bytes
SHA-256: ba4775d0584c838d6aa878d81cc15db1e96c1fdd2b64563f6b0ec2bfe18d7341

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