Malicious PDF — malware analysis report

Static analysis result for SHA-256 9af63690b2fc6f49…

MALICIOUS

PDF

34.9 KB Created: 2021-05-21 05:07:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5f388c60d6c17af76086199551ec8d3a SHA-1: d5388dbe77fb43ca6030c17865b7572ee0344200 SHA-256: 9af63690b2fc6f490b4012b6c92400e381fb25e96446897d6f4dc7eb3971b716
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to websites offering 'free generators' or 'hacks' for popular services like TikTok and Coin Master. These links are flagged as malicious redirectors, indicating a likely phishing or scam attempt. The document body and embedded links suggest a lure to trick users into visiting these sites, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/835599320/how-to-get-free-tiktok-likes-game-hack In PDF document text
    • http://bunadsmaria.com/images/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://bunadsmaria.com/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://bunadsmaria.com/images/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://bunadsmaria.com/images/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://bunadsmaria.com/images/how-to-get-free-robux-games_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_002_off00003072.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3072 24480 bytes
SHA-256: 4666e873569e34bdc0c4efef774a7f34bb88d88fa948a7ca4367dcad9e48dd7d
font_01_sfnt_off000068e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E1 17620 bytes
SHA-256: 741fb2b5b30d8c36687485fbf08913b92fc3b4be4da5bff93af7320c30ccb52b

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