Malicious PDF — malware analysis report

Static analysis result for SHA-256 532c29a91b862a9f…

MALICIOUS

PDF

41.9 KB Created: 2021-05-13 16:19:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7f4105864cd3f26829124c0626cccf4b SHA-1: 26935c69a95c67024be4952b6d4edeccd731087a SHA-256: 532c29a91b862a9feb008fb6218436d836e9a445080ee9a1bc89d4b6fdfc6eef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'free generator' or 'game hack' lures. The primary malicious URL identified is https://netcdn.xyz/app/406889139/free-coins-and-spins-game-hack. The presence of these links and the ML classifier's high confidence score indicate a strong likelihood of malicious intent, likely to lead users to a site that downloads further malware or initiates a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/free-coins-and-spins-game-hack In PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/robux-hack_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/roblox-free-robux-generator_GM431946152.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
stream_003_off00004a40.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A40 24896 bytes
SHA-256: 7ebf093ad5729ed9ed62d363afc62914859fc55fbc87622d48e864814f44eb84
font_01_sfnt_off0000833a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833A 17728 bytes
SHA-256: e3d0b8926ee7e267670c6470891f76c6f1adfe71673e36adb63f096bfed3a95a

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