Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64554a170683b2f…

MALICIOUS

PDF

33.8 KB Created: 2021-07-21 04:45:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 43ea89cc0e7992b00f692feb06e7962a SHA-1: dced54433186196c159c0f880451f6a30bebe410 SHA-256: f64554a170683b2f7e64498fdf999bf1441c74f26edb03f3dbec21fbc53b9aaa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free game hacks and generators. The heuristic firings indicate the PDF is designed as a lure to redirect users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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/479516143/how-to-get-minecraft-bedrock-for-free-game-hack In PDF document text
    • http://www.isril.it/images/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.isril.it/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://www.isril.it/images/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.isril.it/images/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.isril.it/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.isril.it/images/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.isril.it/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://www.isril.it/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://www.isril.it/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://www.isril.it/images/free-tiktok-likes_GM835599320.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_off00002fac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAC 22540 bytes
SHA-256: 7ff1fec0f1db8da07a9ea2ef5e34dd45fa9cea126d782bb6bf80e04e3828bf5b
font_01_sfnt_off000061ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CE 18436 bytes
SHA-256: 052b3e4eb9e318375354f57606905a9f494055cf593924234d38117cd20d5d16

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