Malicious PDF — malware analysis report

Static analysis result for SHA-256 00debdc23af8457a…

MALICIOUS

PDF

35.4 KB Created: 2021-06-30 10:02:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8635579005e7862eac532009f02ee206 SHA-1: a9f6d40f6fe1f70707e8fa49b7b7003232b9e35f SHA-256: 00debdc23af8457a6191e0bbef247d332a84ab137f8bc110722a4871dc722d6f
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that masquerade as game hacks and generators, a common lure for phishing or malware. The document body and heuristics indicate a strong focus on 'Robux Hack' and 'free generator' themes, directing users to external URLs. The presence of CAPTCHA-themed lures suggests an attempt to bypass security or trick users into completing surveys or downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Invisible PDF links to CAPTCHA-themed web lure high PDF_CAPTCHA_LINK_LURE
    PDF contains invisible clickable link annotations that point to a CAPTCHA/capcha-themed web path. This is a common phishing and ClickFix-style routing pattern: the PDF itself is inert, while the linked page performs the credential prompt or fake verification.
  • 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/robux-hack-no-human-verification-ios-game-hack PDF link annotation
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan//repository/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan//repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan//repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/roblox-login-make-a-free-account_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/vehicle-speed-with-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/roblox-cheats-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/free-robux-no-captcha_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan//repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/how-to-hack-all-roblox-games_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/how-to-hack-on-stage-in-roblox-rap-battles_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/get-free-robux-at_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/how-to-get-never-ending-robux-no-hack_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/dragon-ball-super-2-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/roblox-game-download-hacks-studio-login-guide-unofficial-chala-dar_GM431946152.pdfIn PDF document text
    • http://labfisika.undiksha.ac.id/perpustakaan/repository/hack-coin-master-using-pc_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_off000031c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C2 22724 bytes
SHA-256: e3dfc85437749fcbcb57c6cc08194f8e90a5ff62ca072842be18fb6fc82cd0bb
font_01_sfnt_off0000648b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648B 19340 bytes
SHA-256: e1aea86eac06c8991823d9e0de28c5ac9dd1eb2acadcbf69a7e17ffebcb50128

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