Malicious PDF — malware analysis report

Static analysis result for SHA-256 3415b2f7b35f24de…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 23:01:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 82530a508396e3bd230b22830a4bb517 SHA-1: 772a6029056be5493d2104c5cf9c1eab74f0f732 SHA-256: 3415b2f7b35f24dec33b1df35bdcf5fe38db73ea8617572d62464ae628bf1b48
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a document body that advertises game hacks and generators, strongly suggesting a social engineering lure. The ML classifier also flagged this PDF as malicious. The primary IOC is the URL http://netcdn.tw/app/406889139/moon-static-coin-master-generator-hacks-free-game-hack, which is likely the download location for a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.tw/app/406889139/moon-static-coin-master-generator-hacks-free-game-hack In PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-spin-coin-master-link-download_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-obc-on-roblox-test-site_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/pubg-uc-20219_GM1330123889.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/hack-version-of-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-robux-verified-by-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-generatorexe_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-on-roblox-windows-10_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn 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_off0000313e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313E 22536 bytes
SHA-256: 692bbdfd641d4c6e60bf71c77c1f52da0a670e606e97240beee404e4f2d30fee
font_01_sfnt_off0000637b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637B 18168 bytes
SHA-256: 480988a8bf3c5888bd5ebbfc15eb41d8e157e9bfee1c85e44027bf0723b89683

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