Malicious PDF — malware analysis report

Static analysis result for SHA-256 e80ca00afcca7323…

MALICIOUS

PDF

30.7 KB Created: 2021-07-20 13:21:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dfe0ac54492eee742bc4199e182857c7 SHA-1: 2fbf276986e33231c378c0af70173e2c003a8369 SHA-256: e80ca00afcca73230cb8c9954266b57d9822a384cc8a4c685c0b6a1596409c01
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors and lures users with promises of 'Free Robux' or 'game hacks'. The primary link, http://netcdn.tw/app/431946152/free-robux-legit-game-hack, is associated with malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

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 http://netcdn.tw/app/431946152/free-robux-legit-game-hack In PDF document text
    • http://agritrade-ukraine.com/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/minecraft-free_GM479516143.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/robux-hack_GM431946152.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/free-robux_GM431946152.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/free-robux-site_GM431946152.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
font_00_sfnt_off00002488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2488 21780 bytes
SHA-256: 7a1a6b5cf7bb2584f5b5cd3b04d9c46ddb4bad28be51f5f13240f2d8a75f40a1
font_01_sfnt_off0000547c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x547C 18712 bytes
SHA-256: 0a3bb92d146b122749d57d36755b29a560cd1c032c54bb08c637f56f67b3a8e8