Malicious PDF — malware analysis report

Static analysis result for SHA-256 c729f9dacbb6a723…

MALICIOUS

PDF

41.2 KB Created: 2021-05-30 15:12:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f9d25c622bfec74298c718344f19dbed SHA-1: d304b3333b50f181a59ecf19210af7390c301f45 SHA-256: c729f9dacbb6a7231c1175ddcc1562630f3274eb7df2026fb35dfed9bcf2e3b7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures for popular games. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-free-spins-link-game-hack. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely for credential harvesting or further malware delivery.

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/coin-master-free-spins-link-game-hack In PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.alnafeesholding.com/wp-content/uploads/fsqm-files/how-to-get-robux-for-free-2021_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_off0000471a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x471A 25416 bytes
SHA-256: 4ff23391fe16478602d9351be5fabd8fdeaeee1a51f349e0c8e323dcfc315aa2
font_01_sfnt_off00007fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB8 18056 bytes
SHA-256: a4f33549350803e8a819cbfad6b4ff3cdc0b302ceab74af9f2f663eab6bd9ec0

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