Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64c74cd1722dbaf…

MALICIOUS

PDF

45.2 KB Created: 2021-06-03 04:34:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ba2a1461869ec66a020e6a708c6319c4 SHA-1: efdea81455bf0ceeccf94e7eae63ebbe58b23cdb SHA-256: f64c74cd1722dbafb26fe4a18f014a16ce7779eecaf7ea8092120f7d0c219735
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The embedded URLs, such as 'https://netcdn.online/app/406889139/legitimate-coin-master-free-spins-apk-game-hack', are designed to entice users into downloading potentially harmful content or visiting further malicious sites. The document body, though partially obfuscated, reinforces the theme of free game resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/legitimate-coin-master-free-spins-apk-game-hack In PDF document text
    • https://www.ma-plast.hr/files/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-spins-links-2021_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/robux-generators-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/level-coin_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-villages_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_004_off0000522b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x522B 26076 bytes
SHA-256: 0dc4cfdf44e58aedd1ebe8e441f7f79cbc8a7b5a2be790b4a3ce26ea76e34155
font_01_sfnt_off00008d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D56 18604 bytes
SHA-256: 744d2d183457972f47b0db91107cea2f4bf33f1c8b8b46bcb558057de1b31a04

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