Malicious PDF — malware analysis report

Static analysis result for SHA-256 53c685311f3496d0…

MALICIOUS

PDF

43.2 KB Created: 2021-06-14 00:09:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e9c3568f22230cdb6880e4159a512833 SHA-1: 7543db1bd5116c9379bfbc06be442757aee9a9dc SHA-256: 53c685311f3496d01d66ef617e1a80d2cae788995683bc9d930a4d163fb0398d
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 for popular games. The document body, though partially corrupted, contains references to these lures and embedded URLs. The primary function appears to be redirecting users to malicious sites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 http://netcdn.co/app/431946152/free-roblox-accountsd-game-hack In PDF document text
    • http://magnipsor.su/images/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-and-limiteds_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-without-verifaction_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/is-minecraft-bedrock-edition-free_GM479516143.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
font_00_sfnt_off000046d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46D3 27700 bytes
SHA-256: 9b966203143ad2187a26ed67d3c04d8bc201d458f42ae13762fd69b62357b1c9
font_01_sfnt_off00008636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8636 18368 bytes
SHA-256: ccd21cd482e86821b2e7a8e003241ce1880af22bfddb130551e9ee8ffdce8871

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