Malicious PDF — malware analysis report

Static analysis result for SHA-256 85455afaad7db8a7…

MALICIOUS

PDF

34.8 KB Created: 2021-05-23 07:36:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 911c14eff1a65042c16705a327ddf666 SHA-1: 7af969b52ca73a40a955eab6a3749c5507ef3050 SHA-256: 85455afaad7db8a72ed97cab200c7150b8bec7a2693ebc53bdbaa65d643f7078
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links disguised as offers for free views on TikTok and game hacks, which are indicative of a phishing or scam lure. The heuristic firings confirm that the PDF links to known malicious redirector infrastructure and is flagged by an ML classifier. Although no scripts were explicitly extracted, the nature of the lures suggests an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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/835599320/free-views-on-tiktok-game-hack In PDF document text
    • http://www.mcveicolicommerciali.it/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://www.mcveicolicommerciali.it/images/get-free-spins-coin-master_GM406889139.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_002_off000030ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30AD 24068 bytes
SHA-256: 7ee68444e3e6cee94b0ae8ad9f27864a51481ce42be978a455bc1c99215ed335
font_01_sfnt_off000067e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E4 17752 bytes
SHA-256: 0bba4198fd0ca9d20010dde6368f831223727c1fd110b32f8bd9ae0070f69573

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