Malicious PDF — malware analysis report

Static analysis result for SHA-256 146b1dff026fd458…

MALICIOUS

PDF

45.1 KB Created: 2021-05-15 12:43:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8984928b83c244ef3201eb3c4eae698c SHA-1: 7419c31bcac69ae8db8c03e121a2803de849e1f2 SHA-256: 146b1dff026fd45812ed7527521f8388b46186fb79a38c222a9f681112540362
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as offers for game-related cheats and currency. The primary redirector URL is https://netcdn.xyz/app/431946152/hacked-roblox-game-game-hack. The document body and embedded URLs suggest a lure for users seeking free in-game items, which is a common social engineering tactic. No scripts were extracted, but the presence of multiple malicious links indicates a high likelihood of leading users to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/hacked-roblox-game-game-hack In PDF document text
    • http://gops.pruszczgdanski.pl/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-official-page_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_off00004b5b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B5B 28528 bytes
SHA-256: 3384a943cc6603b037e638620e08cffd2c0d89cd8c0a34dcbc04c893b0c2ea5b
font_01_sfnt_off00008cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD6 18616 bytes
SHA-256: 43b97d228c7cd7fd1bba8da0f91b6cd3fc6d824cd96cfd86ffb9da3a0224d155

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