Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4c324949ad209ad…

MALICIOUS

PDF

47.3 KB Created: 2021-05-14 00:02:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 131a867fddb41b7db9bacba6389f651b SHA-1: c580aebe7ebb0349eb72c9efc99457d90094c73b SHA-256: b4c324949ad209add2e321bb5aba0fa078ba48055ce4045475203e5608524044
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. The primary URL, https://netcdn.xyz/app/479516143/minecraft-windows-10-edition-free-with-java-game-hack, is associated with a lure for Minecraft hacks. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/479516143/minecraft-windows-10-edition-free-with-java-game-hack In PDF document text
    • http://technologicalsc.com/images/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • http://technologicalsc.com/images/oprewards-login_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://technologicalsc.com/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://technologicalsc.com/images/websites-to-get-free-robux_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_off00004ae0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE0 28092 bytes
SHA-256: 60ceacd76a19697b7ece650e91af8f346a9d2d49c8e5ccd8ec09fbb3e4e05ac2
font_01_sfnt_off000089d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D5 3092 bytes
SHA-256: 3811f2fb1880daf4953efcc9c7427d9b438bced237490b00be4a6ec3ecea79e0
font_02_sfnt_off0000947f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x947F 18972 bytes
SHA-256: 6c20506a37f57d149a2d60f903306920f0d4438cf2101358cedc4e984bc12f18

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