Malicious PDF — malware analysis report

Static analysis result for SHA-256 051650e30a299b9c…

MALICIOUS

PDF

42.8 KB Created: 2021-05-16 10:28:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bc6d9951cbde4985704855ac1c9f18d8 SHA-1: 38d0bbd1b262ecc3168cf284f114e6f65476f251 SHA-256: 051650e30a299b9cc7d6c0a36331cd04e93a24903d347599ba4ace4307e79e5b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'free generator / game hack' lures related to popular games like Roblox. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URLs and the nature of the lures indicate an attempt to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

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/431946152/roblox-com-r-game-hack In PDF document text
    • http://lovepr.pl/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • http://lovepr.pl/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • http://lovepr.pl/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lovepr.pl/images/no-human-verification_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://lovepr.pl/images/com-roblox_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/coin-master-no-download-app-but-play-for-free_GM406889139.pdfIn PDF document text
    • http://lovepr.pl/images/real-roblox_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • http://lovepr.pl/images/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://lovepr.pl/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://lovepr.pl/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://lovepr.pl/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/weird-roblox_GM431946152.pdfIn PDF document text
    • http://lovepr.pl/images/free-gifts-coin-master_GM406889139.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_off000047fb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47FB 26572 bytes
SHA-256: f8dc98543a4f756622f51c630b9a2416b271cebebe3d7a7fc8ce400f50d47fcb
font_01_sfnt_off000085d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D5 18044 bytes
SHA-256: 1bac474c9f29c65064f9d5134d3fb8963ac85574f5d54b941e913c8d0115a2c9

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