Malicious PDF — malware analysis report

Static analysis result for SHA-256 04201c1e4db6fedb…

MALICIOUS

PDF

31.7 KB Created: 2021-06-19 01:44:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 30407844ea093e30f37fe1c2092cff6c SHA-1: ed735c51d18641a2ce2baf0e70de68100368d322 SHA-256: 04201c1e4db6fedb41c1d11b8c6b749f134a9a98d952f7f8bdb80917e040c67f
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into believing they can obtain game hacks or cheats. The primary link, http://netcdn.co/app/431946152/roblox-cheat-tables-game-hack, and the extensive list of other URLs point to a link farm or redirector infrastructure. The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the presence of a game hack lure and a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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/roblox-cheat-tables-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/game-dev-tycoon-2-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-doing-nothing_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-on-roblox-to-get-money-for-blox-burg_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-item-give-obby-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/wfb-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/freerubux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-freebies_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE8 22520 bytes
SHA-256: fea9de5ea85843b2fc89440a1f446576165311834cca7b7e9d92e8606ac7acc8