Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e6f254c453b92a…

MALICIOUS

PDF

51.2 KB Created: 2021-06-03 14:09:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 29f365cdefc9acfc8908eb67cc94da21 SHA-1: 68e35bf397f855e602c0701fa72b1304ceb45838 SHA-256: e0e6f254c453b92afc8646b71db68594cb1020b2c9fb9b169ca537f6fdef9e4d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free Robux' and 'game hacks', directing users to a suspicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or redirection attempt to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9713

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/is-it-possible-to-get-free-robux-game-hack PDF link annotation
    • http://e-library.stienobel-indonesia.ac.id/repository/coin-master-free-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id//repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/robux-only_GM431946152.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id//repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id//repository/free-spin-link_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id//repository/google-moon-active_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id//repository/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/hack-master-coin_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id//repository/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id//repository/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/how-to-downgrade-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id//repository/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://e-library.stienobel-indonesia.ac.id/repository/get-me-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000510f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x510F 25504 bytes
SHA-256: 77bbfbe1d29d996a2476c48aedb3d253023dafcd2bed5d2a6773d6f667375c46
font_01_sfnt_off00008b95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B95 3964 bytes
SHA-256: a577d69e989be37e626a9e0e9c218c3fd99c1609a269cbea23a45d65b74d0bc2
font_02_sfnt_off000098f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F5 3396 bytes
SHA-256: e59bc53cd4c0ee65dc1533becad2866f345dcb060e6c68bb8187d21cb9f973ee
font_03_sfnt_off0000a4e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E8 18464 bytes
SHA-256: 524b785793646940a6547919a11f6df6f4967036cf63710b5a4934c88ca16ae7

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