Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de6bfa24e8cdccb…

MALICIOUS

PDF

43.1 KB Created: 2021-05-13 05:52:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: acbfbb8101f18310a855e6260e10c388 SHA-1: 9e7fb359d563e5e106be35da7e4251d3d6fed2b6 SHA-256: 0de6bfa24e8cdccbd45cc7e053b6aeeb4f53a56a9c06292848d847033efcdf68
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, including one pointing to 'netcdn.xyz', which is flagged as a malicious external URI. The ML classifier also strongly indicated maliciousness. The document body and embedded links suggest a lure related to game cheats or rewards, likely intended to redirect users to malicious sites for scams or malware distribution.

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/406889139/coin-master-reward-link-game-hack In PDF document text
    • http://altc.de/images/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • http://altc.de/images/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://altc.de/images/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://altc.de/images/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://altc.de/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://altc.de/images/worst-roblox-avatars_GM431946152.pdfIn PDF document text
    • http://altc.de/images/moon-active_GM406889139.pdfIn PDF document text
    • http://altc.de/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://altc.de/images/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://altc.de/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-spins-coin-master-2021-glitch_GM406889139.pdfIn PDF document text
    • http://altc.de/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://altc.de/images/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://altc.de/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://altc.de/images/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://altc.de/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://altc.de/images/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://altc.de/images/free-robux-generator-2021_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_off0000477b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x477B 29836 bytes
SHA-256: e42d09a36bc2001383bbc1c3e58c9f2ead7ae421965c1d68a52029e7386cd0dc
font_01_sfnt_off00008698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8698 18056 bytes
SHA-256: c2793d17727503817a30064ba8beed92adc1bd6ab198ac538296771cbb61b552

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