Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a216114a0c4da10…

MALICIOUS

PDF

44.9 KB Created: 2021-05-20 06:47:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: beddf9fde6da61d8d7372aa34901cf28 SHA-1: 7b64cd8690c541cb6af13f28b7859d9f6854e4d6 SHA-256: 0a216114a0c4da10ad6d18d18c3cf2e5d8c182303df862dd9c6549280ee0b08e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector is in use.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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-android-device-game-hack In PDF document text
    • http://autismoalbacete.org/images/how-to-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/tiktok-free-folowers-4tiktok-site_GM835599320.pdfIn PDF document text
    • http://autismoalbacete.org/images/watch-videos-for-robux_GM431946152.pdfIn PDF document text
    • http://autismoalbacete.org/images/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://autismoalbacete.org/images/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://autismoalbacete.org/images/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://autismoalbacete.org/images/pubg-uc-shopee_GM1330123889.pdfIn PDF document text
    • http://autismoalbacete.org/images/no-human-verification_GM431946152.pdfIn PDF document text
    • http://autismoalbacete.org/images/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://autismoalbacete.org/images/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://autismoalbacete.org/images/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://autismoalbacete.org/images/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://autismoalbacete.org/images/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://freegiftcodes.euIn PDF document text
    • https://education.minecraftIn 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_off00004862.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4862 25708 bytes
SHA-256: 9966672199a130db8646075431fc7397db91a0d2e0ef4a6e3a07b6b55c00b563
font_01_sfnt_off000082d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D3 2840 bytes
SHA-256: 787e0768241fb57660bcc9c7f726cf687277c463cdf8c586c4782ee9d03c3606
font_02_sfnt_off00008c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C91 18332 bytes
SHA-256: f1b1885292fe7804ab1139a421bc8971dcdb5c33ccbea204e48355468ca4790a