Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9448065572c644…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 07:23:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 11e3ed09cc989d35bc36be4a427659e7 SHA-1: 30bfdf1ee50a1f4fbeeef9891c4707f6018f76b0 SHA-256: ce9448065572c64413fd9e00d1e147f6ca936e3af78fcad30ffc56d10752f495
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 "game hacks" and "generators". The primary lure is a link to a "free generator / game hack" which is hosted on known malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering tactic to drive users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/coin-master-hacks-and-cheats-game-hack In PDF document text
    • http://www.nfca.org.tw/upload/files/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/how-to-make-a-roblox-thumbnail-for-free_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • http://www.nfca.org.tw/upload/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51B0 25496 bytes
SHA-256: f69a73b0f55dac6ca312045e9064707e187d4d5daffda1f59520040c89f4bb95
font_01_sfnt_off00008bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB2 18056 bytes
SHA-256: b6577ff561e389c2b99f5ce8f4a8129628e3d5fd8b314c611519f3015f10681d

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