Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f34116c811dd6bc…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 09:55:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5342bac9b574f9d8a40df18fa324aace SHA-1: 9ceb52e5bfe86e6bc7806633a1a059716b1d26f1 SHA-256: 2f34116c811dd6bc82f3c761b37a57abdbeb302f38bdb9e253a7fd5a3d6dc1f2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a high-confidence heuristic firing for a 'free generator / game hack' redirector lure. The document body explicitly mentions 'How To Get Free Robux Without Offers' and links to external sites, indicating a social engineering attempt to trick users into visiting potentially malicious websites. No scripts were extracted, but the primary attack vector appears to be directing users to external resources.

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.tw/app/431946152/how-to-get-free-robux-without-offers-game-hack PDF link annotation
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-hacker-on-urbis_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-for-joining-groups_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-1m-robux-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/earn-robux-com_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/pubg-uc-website-free_GM1330123889.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-a-free-2021-2021-roblox-account_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-followers-on-tiktok-no-verification_GM835599320.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-printables-free_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_off00003061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3061 22528 bytes
SHA-256: c6d4775e8983327380fcd23c3d652338d2e44f539ed51a94278ea63b34f6f664
font_01_sfnt_off0000629e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629E 19468 bytes
SHA-256: d293dc8b17a4ec261e56b386a82f7f63f23481516d807023c0ef4741d16fdc92

Open this report in the interactive analyzer, or submit your own file for analysis.