Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b08ff00ec6a04b2…

MALICIOUS

PDF

47.2 KB Created: 2021-06-11 11:36:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 713254c1cb1250dd187ccf9ae2291e65 SHA-1: c9e4e60d031c04356536c778c0109a1931f16331 SHA-256: 7b08ff00ec6a04b2588a18cf200eacb8fe3742f64a519ef0edbc9c492a1fd607
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a visual call-to-action, luring users to websites offering game hacks and generators. The primary URL, https://netcdn.tw/app/431946152/cheat-rocket-roblox-game-hack, is directly linked to the lure. While no scripts were explicitly extracted, the PDF structure and heuristics indicate a malicious intent to redirect users to potentially harmful content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.tw/app/431946152/cheat-rocket-roblox-game-hack PDF link annotation
    • http://digilib.uim.ac.id/repository/roblox-teleport-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/https-web-roblox-com-games-2021202119-free-admin_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-hax_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-pe-server-hosting-free_GM479516143.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
stream_004_off00005353.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5353 28372 bytes
SHA-256: 3013b7d9997445632f55a81d4aa645ab426cb1f9b83beb98824177e395ef1785
font_01_sfnt_off00009581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9581 18452 bytes
SHA-256: e4e11262775b497f1ac9daf2250205dcbb81c0cd01fd7c4286673e6fde973d7c

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