Malicious PDF — malware analysis report

Static analysis result for SHA-256 2de9a38790e70915…

MALICIOUS

PDF

45.4 KB Created: 2021-05-18 02:45:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1a8816d72dec393a1caf7ee12f763359 SHA-1: 39df08d58f3e48e7c54b5104b01e78372de803b1 SHA-256: 2de9a38790e70915112fef8b5f0269aed68a6d3bcb69f5579d38baee1dc06e85
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links to known malicious redirectors, specifically promoting "game hacks" and "free generators". The primary lure URL is https://netcdn.xyz/app/406889139/hack-coin-master-online-game-hack, which is part of a network of domains distributing similar lures. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection, likely intended to lead users to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/hack-coin-master-online-game-hack In PDF document text
    • http://playmoorecello.com/images/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://playmoorecello.com/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://playmoorecello.com/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://playmoorecello.com/images/dailyrobux_GM431946152.pdfIn PDF document text
    • http://playmoorecello.com/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://playmoorecello.com/images/moon-active-games_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://playmoorecello.com/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://playmoorecello.com/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://playmoorecello.com/images/master-coins-free_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://playmoorecello.com/images/freecoins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004921.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4921 26664 bytes
SHA-256: a99690895e98691496b322267a4f9f4ed8acc97e6bcb2bed0c9ad62654c247aa
font_01_sfnt_off00008563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8563 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off0000908d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x908D 17788 bytes
SHA-256: e0e539ae1db8c03a1be4e251235a7cd5530d910df9e974361113a9fde74a9cf4

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