Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa98d919008f005…

MALICIOUS

PDF

39.1 KB Created: 2021-07-05 22:09:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6a4b23563b8e17163018f06cc493cfaa SHA-1: 84308b6ce7212c5fda7d9cbd46238b04fe45375c SHA-256: faa98d919008f00584949ffe86306cb1381e22ffeb2d64a2d70e043dab40527e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free spins, directing users to a suspicious URL. The heuristic firings indicate this is a common redirection tactic used to deliver malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lead the user to a site that likely hosts a further exploit or download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

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 http://netcdn.tw/app/406889139/coin-master-free-spins-daily-1-ga-game-hack PDF link annotation
    • https://www.ferraroni.net/public/risorse/ck/files/hack-coin-roblox_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-roblox-gift-cards-online_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-roblox-cards-no-verification_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-find-roblox-in-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/hilton-hotel-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/roblox-freeze-tag-hack_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/tiktok-free-online-books_GM835599320.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-roblox-items-wiki_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-robux-hack-no-human-verification-or-survey_GM431946152.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
font_00_sfnt_off000036e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36E3 23180 bytes
SHA-256: 10499982f589df9082af4e46d01c60917c83a0df975180058ec0957b73d5ea93
font_01_sfnt_off00006b18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B18 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off000074fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74FD 18704 bytes
SHA-256: d7544651656718000e1e9419acd41b620a70c2b4388c5f19f3842709c0a79bb2

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