Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4832da87f83d8df…

MALICIOUS

PDF

34.3 KB Created: 2021-06-28 01:34:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cb2f07e47e18f72dec44c7b25ed1e905 SHA-1: 17d3bf110d45dd8ef864bbfa7f0ab7c3b7148c2b SHA-256: e4832da87f83d8df34db81974ab789f5c59bed9edb585734133ea8f0cf3438d7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/vip-roblox-hack-game-hack PDF link annotation
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/happymod-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-free-robux-easy-2021-pc_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-do-you-hack-roblox-kick-off_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-models-into-roblox-t-shirts_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/unlimited-robux-hack-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/racist-penguin-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-anti-cheat-bypass-noclip-pastebin_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/hack-de-roblox-para-tener-robux-gratis_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/crazygames-free-robux-hax_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/robux-fun-robux-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/cheat-engine-67-roblox_GM431946152.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_off00002ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA3 22592 bytes
SHA-256: 6682163ebd7bcff4fa062acffdc4675281da640d427c7a375ebfa7c9aaab8ca8
font_01_sfnt_off000060ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60EA 19084 bytes
SHA-256: ddacce6e2a4f8fa74fd56271759f67a58ede27cefdd85ba97b53bae64cc97a49

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