Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c5f53c02bf0c414…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 08:11:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 67faf8eb5bf9ffdc792b65ba4bfac19a SHA-1: 7f32c932be8a172b1e6a3f938c4a273dabd1bcb5 SHA-256: 2c5f53c02bf0c414deb761133cbbc6ad4bc51c83ac7efbc10e892b0cd61aed01
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that lure users with promises of game hacks and free in-game currency. These links redirect to malicious infrastructure, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous redirector links reinforces this assessment. No scripts were extracted, but the document's structure and content point towards a social engineering attack.

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 http://netcdn.co/app/431946152/nitro-fun-cheat-codes-vip-roblox-id-game-hack In PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/greenlegocats-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/roblox-free-roblox-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/roblox-free-survete-addidas-girl_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/como-hackear-ropa-en-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/roblox-assassin-parkour-cheat_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/how-to-get-actual-free-robux-by-doing-nothing_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/how-do-you-hack-through-walls-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.stiks-tarakanita.ac.id/repository/coin-master-free-link-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
font_00_sfnt_off00002fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB9 22252 bytes
SHA-256: 0e4fe68c3071e770775ab4fc25fc96ec2abf3dacd965572c2d648c0f1a9e971c
font_01_sfnt_off00006107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6107 19664 bytes
SHA-256: e578a9b2ff9c8a72776832f2c65f17d29328938d154e21118738173232a510a8

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