Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6b80797a1fd427d…

MALICIOUS

PDF

41.1 KB Created: 2021-05-17 17:06:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 92b220530775a04852a9e6d46a78014d SHA-1: afc0c85d4efc508e60ac6cfb93cd5c369ba0e390 SHA-256: a6b80797a1fd427d3d3000a66e1555b68e585318d1e10c47be894af716bb6c9b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to 'netcdn.xyz', which is flagged as a malicious redirector. The document body and heuristics indicate a lure for game hacks or generators, aiming to trick users into clicking these links. The presence of multiple PDF_MALICIOUS_REDIRECTOR_LINK firings and the ML_NYX_PDF_MALICIOUS classification strongly support this assessment.

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-menu-game-hack In PDF document text
    • https://studiodegaetano.it/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://studiodegaetano.it/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/robux-miner_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/best-hacked-client_GM479516143.pdfIn PDF document text
    • https://studiodegaetano.it/images/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • https://studiodegaetano.it/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • https://studiodegaetano.it/images/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • https://studiodegaetano.it/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://studiodegaetano.it/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://studiodegaetano.it/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://studiodegaetano.it/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://studiodegaetano.it/images/www-free-robux_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://studiodegaetano.it/images/orewards-com-free-robux_GM431946152.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_off00004895.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4895 24556 bytes
SHA-256: 54c48b9a60d1e89b8ed32ca7b48d5625389e051a2dbbf93d337b2b5212879181
font_01_sfnt_off0000800f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x800F 17708 bytes
SHA-256: 679a1d8f76460a115219f4f15c6f17ac3f2059c2b9f5df8a51dcf2988abe9cc5

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