Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bbbea6933c499a7…

MALICIOUS

PDF

42.4 KB Created: 2021-05-12 05:07:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf7ae516a5db6ac90d3b47b549e1eb66 SHA-1: 0a35a7c0af93786021f60058a3edbc6fabf7ed05 SHA-256: 8bbbea6933c499a7e734e74b40a823ae7befc292bb63959eafcdab374377d0aa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks. The primary malicious URL identified is https://netcdn.xyz/app/479516143/best-free-hacked-client-game-hack. Although no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a malicious redirector pattern, likely intended to lead users to further malicious content or downloads.

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/best-free-hacked-client-game-hack In PDF document text
    • http://www.bayrischestaferl.de/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/coin-master-100-spin_GM406889139.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_003_off00004871.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4871 26160 bytes
SHA-256: 883e2535f7dcb1f1928dab3f1573bb70ee0c04808e015fa8b56e82f9fe79f1f6
font_01_sfnt_off000083e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83E5 18200 bytes
SHA-256: f9e1919cba188461631b4d1f41fa639bbd05523e10553c39d41e2ec7b66d941b

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