Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e50f4baa4f76c9e…

MALICIOUS

PDF

44.7 KB Created: 2021-05-13 00:04:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0d97e849bc6af60cca87931dc80f9eb9 SHA-1: dd936e1c80a016c201e9205dcee1c2f931845d90 SHA-256: 4e50f4baa4f76c9e726eabf48b857ae9b4256ae1975020383bf20936c8e90051
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of game hacks and free currency to trick users into clicking malicious links. The document contains multiple embedded URLs that point to redirectors and other potentially malicious PDF files, indicating a phishing or malware distribution attempt. No scripts were extracted, but the presence of malicious links and the lure strongly suggest a phishing campaign.

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 https://netcdn.xyz/app/406889139/coin-master-hack-apk-download-2021-game-hack In PDF document text
    • http://library.stieyapan.ac.id//repository/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/is-minecraft-free-on-switch_GM479516143.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
stream_003_off0000497e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x497E 29364 bytes
SHA-256: ccfb2514cb644f75719f5198d81268a263c7363a9a8e670347e80de41065ef02
font_01_sfnt_off00008a82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A82 18876 bytes
SHA-256: d185c6cd3e49a2afee7ee12c234f8f1d1893ea96722679c453b335d0786e87d0

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