Malicious PDF — malware analysis report

Static analysis result for SHA-256 80cdbff2258135b3…

MALICIOUS

PDF

43.1 KB Created: 2021-05-19 09:40:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e851cc8bb15f98d617d0b2b66208da83 SHA-1: d8776ef861ad0ae53104f5199aea62c5b5faa23b SHA-256: 80cdbff2258135b382db18c751ddfe9fdc1463a0841f3d19ab0f50d8edd08e4f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary link identified is https://netcdn.xyz/app/479516143/minecraft-pe-free-download-ios-no-jailbreak-game-hack, which is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a lure designed to lead the user to potentially harmful content, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/minecraft-pe-free-download-ios-no-jailbreak-game-hack In PDF document text
    • https://farkas.de/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://farkas.de/images/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • https://farkas.de/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://farkas.de/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://playhack.in/minecraftIn 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_off00004b71.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B71 25224 bytes
SHA-256: 5875a49b38c9a422f1eb70e734f1eebc582cf0a0c0d899fb8a9e2fbed654a1f5
font_01_sfnt_off0000845a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x845A 18940 bytes
SHA-256: 384c56943b2f0ce7dd032d42d48bdddf0ac3b313714fbbfa672311f45c441041

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