Malicious PDF — malware analysis report

Static analysis result for SHA-256 a74c1e63dccf0a85…

MALICIOUS

PDF

43.6 KB Created: 2021-05-16 06:00:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e7a5958d9c8bfdd52969cc2cadfcba59 SHA-1: 9caf6df518abc72952db6eb20a52b5546d16ca88 SHA-256: a74c1e63dccf0a8521afa5f348974d97c5ef6589cb797cfea166891284ff0285
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as offers for game hacks and free currency. The primary redirector URL is https://netcdn.xyz/app/406889139/google-coin-master-free-spins-game-hack. The document body and heuristics confirm a lure-based attack pattern designed to lead users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/google-coin-master-free-spins-game-hack In PDF document text
    • http://www.ma-plast.hr/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/clients-minecraft_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/wurst-115-2_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-coins-free_GM406889139.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_off00004a1b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A1B 27624 bytes
SHA-256: cc8792886fe8e612cbaf0309123ef86b9d4924314243b4d03a067c5b1738174e
font_01_sfnt_off00008836.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8836 18248 bytes
SHA-256: d32188c22f9df4e49535359cc17236f14c93b7b5c7ebedc8928f30f104243849

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