Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b30932ba9e3eea8…

MALICIOUS

PDF

41.9 KB Created: 2021-05-14 16:36:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 44b15315103ad13b74592e3bc1cf0fed SHA-1: 0916386ef2f88b65005f0657822303b9261c22d4 SHA-256: 9b30932ba9e3eea8eae285fb21caa902c034562447a86c8c9eb646f586c40b6e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'generators'. The primary malicious URL identified is https://netcdn.xyz/app/479516143/wurst-minecraft-game-hack, which is likely used to deliver a secondary payload or lead users to a phishing site. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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/479516143/wurst-minecraft-game-hack In PDF document text
    • https://www.itc-nekretnine.hr/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/robux-redeem_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://education.minecraftIn 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
font_00_sfnt_off00004ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AD8 24756 bytes
SHA-256: cb829fe2c8f34f23ad4442b5da523a2b38f33d2e5e0503ed3fa2bb7a77be18e8
font_01_sfnt_off00008287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8287 17904 bytes
SHA-256: fe2be4bfd964b3268c312eb0b249b51bf809c15fdb0694b3c785ca9563b07e04

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