Malicious PDF — malware analysis report

Static analysis result for SHA-256 59df70e9b25b23c8…

MALICIOUS

PDF

43.9 KB Created: 2021-04-27 20:50:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3a0dd6774c49a17082dab90a268c267d SHA-1: bff926f2ad067067fe2622ff950e4a78b00d59a3 SHA-256: 59df70e9b25b23c86871394e9c152c5039a4bb9eb12e466f002897030f36797c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-how-to-get-free-ninja-animation-game-hack. The document's content and embedded links strongly suggest a phishing or scam attempt designed to lure users into clicking malicious URLs, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9868

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/431946152/roblox-how-to-get-free-ninja-animation-game-hack In PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-clothes-in-roblox-mobile.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-scams-in-groups.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-on-alcatel-a5.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-do-i-change-my-roblox-name-for-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-hack-roblox-personal-servers.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-hack-no-generator.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-cheats-without-builders-club.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hacks-for-super-power-training-simulator-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/beyond-cheat-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/console-hack-for-free-robux.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000043ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43ED 25068 bytes
SHA-256: d5e1137f34385867c09e338da2907f8fc82c6a6580641e58b0f40b3fb47912eb
font_01_sfnt_off00007dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCA 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off0000877b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x877B 19012 bytes
SHA-256: 52d49bad237d8a100424f72ac7c3a21760eb7190f334bcf5d3ff6c34902cd1be