Malicious PDF — malware analysis report

Static analysis result for SHA-256 abfadff56bc4661a…

MALICIOUS

PDF

36.8 KB Created: 2021-05-23 07:02:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cde1741d0186336d550c590aa9b3ea15 SHA-1: 8244670815990553abbe942a3e5c9bc8076ab76f SHA-256: abfadff56bc4661ae151a58fcce0932998693c79588a85ab165cf75855f77cc8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free generators. The document body, though partially corrupted, contains text and URLs consistent with a phishing or scam attempt. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/best-free-minecraft-server-hosting-game-hack In PDF document text
    • http://www.malonmalon.com.ar/images/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://www.malonmalon.com.ar/images/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://www.malonmalon.com.ar/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://www.malonmalon.com.ar/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.malonmalon.com.ar/images/rbx-gg-free-robux_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
font_00_sfnt_off000037d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37D7 25104 bytes
SHA-256: c0ed2b6520f3bb5967fb31761cbceb481195cf301cd7f9c8aedd0a3ca04832dc
font_01_sfnt_off00006e57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E57 18328 bytes
SHA-256: 0b2d28431e5234c57104fb234e5f183f246f5a4819408a3d571d7ab08b18c1e5

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