Malicious PDF — malware analysis report

Static analysis result for SHA-256 7549e51ea99f0137…

MALICIOUS

PDF

44.4 KB Created: 2021-05-11 17:05:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 13fb61ec5887e364e5077af5470d8028 SHA-1: 54cfb2ee279cea8a002e7d28b016fb69ea8cab55 SHA-256: 7549e51ea99f0137168f7a4061212e0b00377852254008b38d76ce86eefd6995
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, designed to lure users into clicking on offers for game hacks and free currency. The primary malicious URL, https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-group-game-hack, is presented as a 'free generator' or 'game hack'. The document body and embedded URLs reinforce this lure, suggesting a phishing or scam attempt to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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-coins-and-spins-group-game-hack In PDF document text
    • http://finalstand.org/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://finalstand.org/images/master-coin-free_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/earn-robux-now_GM431946152.pdfIn PDF document text
    • http://finalstand.org/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://finalstand.org/images/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://finalstand.org/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://finalstand.org/images/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/wurst-115_GM479516143.pdfIn PDF document text
    • http://finalstand.org/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://finalstand.org/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://finalstand.org/images/rbx-claim_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000492e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x492E 24928 bytes
SHA-256: d53016c3af9c506a296ac96d4556a2e6bd92acf870bd123680518831582a581a
font_01_sfnt_off00008156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8156 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B08 18200 bytes
SHA-256: 82cb87e4a2b313f26c2787ad2aae3aeb0ab25e499298f61d63a83741ac954f7c

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