Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b01e3b5435bc6a…

MALICIOUS

PDF

42.0 KB Created: 2021-05-12 09:49:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 23fcf378eae23f089dc9399a0078519f SHA-1: 7313a870b12ed5d529a0717514db06eaf1760f83 SHA-256: f0b01e3b5435bc6ad81e9da3ac7b88aba09bb7f0fa82f82b729692da0689eead
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free spins' for games like Coin Master. The document body and heuristics indicate a lure to download or access these 'hacks', which likely leads to further malicious content or malware. No scripts were extracted, but the embedded URLs and the nature of the lure strongly suggest a phishing or redirection attack.

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-unlimited-spins-hack-game-hack In PDF document text
    • http://techmobil.pl/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://techmobil.pl/images/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://techmobil.pl/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://techmobil.pl/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://techmobil.pl/images/how-to-get-free-robux-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_off00004831.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4831 24892 bytes
SHA-256: 449edb513c5432b77a1f4a000e3607e5ae6e4c76d7e7e034133cc9d26693cec6
font_01_sfnt_off000080ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EF 18584 bytes
SHA-256: bff27dcdedd5af8a0d687a24d9b2ce7acea36a5c8901c6afee4cb29d8b6ebd85

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