Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f7302943b5ac13d…

MALICIOUS

PDF

42.3 KB Created: 2021-06-04 09:41:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e75b01a67557c30f29a66082fc7b7b35 SHA-1: d2e4c8ac7f888dcb00d8533ce7e53a19dc01471c SHA-256: 1f7302943b5ac13dd6a65a2ed02c83845c19a30f02f87fea0e5ab3b38fbe0ce6
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free generators' to lure users. The primary malicious URL identified is https://netcdn.online/app/1330123889/pubg-uc-17-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a malicious redirector workflow designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.online/app/1330123889/pubg-uc-17-game-hack In PDF document text
    • http://library.imz.or.id/repository/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/minecraft-handbook_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/cache-http-robuxiancom-howtogetfreerobuxv8_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004b05.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B05 25288 bytes
SHA-256: 88c3187c8deff1d8765f7e554710f5eceabb5645544c9c5987599d174a0c62cb
font_01_sfnt_off00008337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8337 18060 bytes
SHA-256: 121efad188ac00459b1925c8c8271b05987e0953e90cb50c343848bdbe32b8b5

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