Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3323ea596ac433f…

MALICIOUS

PDF

49.0 KB Created: 2021-06-10 14:05:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 02accb58afdb4d6f68c6d280e158de31 SHA-1: ac321ecddd3555e968a0c19cda7b211632851cb5 SHA-256: f3323ea596ac433f58d4b21cc00f451b58a17adacecd81a43dcf238e25974cd3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary lure directs users to 'https://netcdn.tw/app/431946152/money-cheat-roblox-tycoon-game-hack', which likely serves as a gateway to a malicious payload. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/money-cheat-roblox-tycoon-game-hack In PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/hack-zombi-rush-roblox-unlock-all-weapon_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-hack-roblox-accounts-2021-august_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-re_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/earn-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/spin-link_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://discordIn 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_004_off00005248.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5248 27892 bytes
SHA-256: 5e50b60a53d05f454324b25ab8e883bad3246eaf10c30d57c8ef10f3ccf0efee
font_01_sfnt_off000091e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E5 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00009b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B94 18656 bytes
SHA-256: 3682127c8dd72e978cbe2fbf2b1b0694e7a4d0ac9e6699e354d6d77c708e2da6

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