Malicious PDF — malware analysis report

Static analysis result for SHA-256 a776700e6f3fcf33…

MALICIOUS

PDF

45.2 KB Created: 2021-05-14 05:32:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4fc30c6a71f16830af216bf6a99014dd SHA-1: 33a6a36d7ea0ddada062e315ecd8613401ff08d3 SHA-256: a776700e6f3fcf33b20cc869b8f1c8b2420abc221b60bd621540bce9e2aae56b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically targeting users with lures for game hacks and free items. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attack designed to lead users to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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/479516143/how-to-get-minecraft-for-free-on-xbox-one-game-hack In PDF document text
    • https://itv-grabungen.de/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/rbx-earn_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-site_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • https://www.youtIn 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_off00004bf8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BF8 24524 bytes
SHA-256: 5191366fd13946279b41e1662af25abac3d9c91eee9c2b8995fa4e284fd50235
font_01_sfnt_off000083a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A2 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00008db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB2 18472 bytes
SHA-256: 63446f7755945d37ec8b97d22fda434cb08cbf4c61a02f7f94d2af605f03b611

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