Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cb17f6d9f181d2b…

MALICIOUS

PDF

45.5 KB Created: 2021-05-20 00:31:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8e2bad7d8f128ae5a55feb7524abff2f SHA-1: adef96b1dcd7cd27b7a092e67396554b1fe1f263 SHA-256: 4cb17f6d9f181d2bb7dd68e7c7262044e49e4356636a2e53d58a3fc36fd9ad0e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and embedded text that lure users with promises of free game currency and hacks. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The document's structure and content suggest it is designed to trick users into visiting potentially harmful websites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/free-coins-for-planet-master-game-game-hack In PDF document text
    • http://casabea.de/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://casabea.de/images/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/worst-client_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • http://casabea.de/images/hack-avatar_GM431946152.pdfIn PDF document text
    • http://casabea.de/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://casabea.de/images/free-roblox-money_GM431946152.pdfIn 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
stream_003_off00004c34.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C34 25000 bytes
SHA-256: 339a2e9b280db368c198e172a13e2c639ca3cf911338e56838d6b806fad0f3bb
font_01_sfnt_off0000836c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x836C 3480 bytes
SHA-256: a1c9b591adae20d84a4937d36ad16b290efee1d5c09b9a55e10ce692e74bf152
font_02_sfnt_off00008fb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB2 18196 bytes
SHA-256: c562c37ec85c1a31376f1319708a817f13e9ce9d6f96008aa36ac2301c2a7916

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