Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6acf03e2cfae41…

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 12:01:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c4401743b59342ac454536c7992cea7b SHA-1: 3ef7f9641c93e0d21eff756c7473bc82dc0ef3e3 SHA-256: 0e6acf03e2cfae410a1c857c66ee295983226cfb1be717135421af7edd60370a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to malicious redirectors, disguised as game hacks and free generators. The primary link directs users to 'https://netcdn.online/app/479516143/how-to-hack-a-minecraft-server-game-hack', which is flagged as malicious infrastructure. The document body, though partially obfuscated, contains similar lures and embedded URLs, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of a malicious payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/479516143/how-to-hack-a-minecraft-server-game-hack In PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/earnrobux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-free-500-spins-link_GM406889139.pdfIn PDF document text
    • http://library.fk.upnvj.ac.id/repository/coin-master-hack-100-working_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_off0000527e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x527E 27068 bytes
SHA-256: 826067106be9657678d4fa292292ffb775cb1537db79fb0e4c6064f78b356ae7
font_01_sfnt_off00008f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1B 18156 bytes
SHA-256: a161276dde2563737e729d23e9d7b4e88663ff4ff7cddafc48ded70db5af995a

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