Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8a80ff529e3b76f…

MALICIOUS

PDF

33.5 KB Created: 2021-07-19 22:40:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 67f1265322be76cadda8bfc2c025e1c9 SHA-1: 1fad328332032debe16e9e2d12aa95cbd3bf5a14 SHA-256: d8a80ff529e3b76f4b268e491c062e964fe27beec769d0ab6341b935bb47622f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into downloading game hacks or cheats, redirecting them to malicious infrastructure. The primary lure is for 'Minecraft Java Edition Download Free', which points to a known malicious redirector. The document's structure and embedded links strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/minecraft-java-edition-download-free-game-hack In PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/is-tiktok-free_GM835599320.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/roblox-hack_GM431946152.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/free-minecraft-server-maker_GM479516143.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_off00002c79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C79 22984 bytes
SHA-256: 0047a0fbc4068b53e565643c03ac5184111af63af3064a8ef0d2bc6df4626f2b
font_01_sfnt_off00005fef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEF 18572 bytes
SHA-256: b44bcce2d8515c0d099a66814c088ed689798a3dbc3c1364cf14b7c888151b67