Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8dc38e8f6629288…

MALICIOUS

PDF

46.7 KB Created: 2021-05-14 00:54:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0f08f9467bd15b8a749a8dd118fa32d0 SHA-1: 22bb0286d3e16295903a1cd5f933ac2e3c6e71c2 SHA-256: a8dc38e8f6629288eb48026a755461c9697b0ba8fd87d783c78c7a90d72e7eb8
160 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and generators, embedding multiple links that redirect to known malicious infrastructure. The primary URL identified, https://netcdn.xyz/app/479516143/minecraft-pc-download-free-full-version-game-hack, is associated with malicious redirector activity. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an intent to lead the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/minecraft-pc-download-free-full-version-game-hack In PDF document text
    • http://easytransferbrazil.com/images/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://easytransferbrazil.com/images/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://easytransferbrazil.com/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://easytransferbrazil.com/images/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://easytransferbrazil.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/coin-master-online_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://easytransferbrazil.com/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://easytransferbrazil.com/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://easytransferbrazil.com/images/minecraft_GM479516143.pdfIn PDF document text
    • http://easytransferbrazil.com/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://easytransferbrazil.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn 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_off00005004.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5004 24928 bytes
SHA-256: bf12548a3bf7dd25053011ba08e0820dabab27825117637c2920f0c8ee501a5c
font_01_sfnt_off00008945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8945 2824 bytes
SHA-256: 61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b
font_02_sfnt_off000092eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92EB 18716 bytes
SHA-256: 489221dfcb925ba69d0ba840bced02970ab19491774c28c5754cc19987365276

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