Malicious PDF — malware analysis report

Static analysis result for SHA-256 d46b75dcbc487ff1…

MALICIOUS

PDF

46.9 KB Created: 2021-05-20 02:45:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 02e7786c0b905cf7cae3ee88fcdfe7d8 SHA-1: af7c23c636450c6e481d5583b5d1b315dfba64f8 SHA-256: d46b75dcbc487ff180166cd00b17316826728f0355fe3357cfd65a26525c0af5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' which redirects to a known malicious URL. The document body and heuristics indicate a redirection to a site offering game hacks or cheats, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious redirection workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/431946152/how-to-get-robux-for-free-2021-game-hack In PDF document text
    • https://stroyzakazremont.ru/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/is-pokemon-go-free-to-play_GM1094591345.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/free-robux-images_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/robux-free-online_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://stroyzakazremont.ru/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://rblx.landIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A19 29484 bytes
SHA-256: 280cdc079702d39ce8255db7fe879026b2b6caddddca0e416f7ba425d747bbb1
font_01_sfnt_off000089ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89CE 2824 bytes
SHA-256: 45bf821f81e84f4aa8d8374f492b182b36404f38b462c7dc471deaad6ab5c104
font_02_sfnt_off0000937c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x937C 18684 bytes
SHA-256: 65f445f0396e54760dd2a1edc1744209422bc48f29c35ea74a9bcb72e79f8b06

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