Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8375cd4a9d1003b…

MALICIOUS

PDF

43.5 KB Created: 2021-05-16 22:56:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d51ab66e89f25afa06ec5f2c08dcd0a7 SHA-1: a9c9a6e63b1de835806036b316fbfec5b622b64c SHA-256: d8375cd4a9d1003b83c6daa0ee00c25ce84f97a3b2028f340439ab36efb7b733
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and generators, a common lure for malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were explicitly extracted, the nature of the lures and embedded URLs suggests a potential for JavaScript execution or direct download of malicious payloads upon user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/431946152/free-stuff-on-roblox-game-hack PDF link annotation
    • http://newbeginningsranch.net/images/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/demon-roblox_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/easy-robux-com_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/best-hacked-client_GM479516143.pdfIn PDF document text
    • http://newbeginningsranch.net/images/get-free-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/roblox-account-taker_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-spins-coin-master-generator_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
stream_003_off00004a38.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A38 27248 bytes
SHA-256: aa22d525ff2775f3c49c34f8553a4c9de3e3ee0761966fa94b41c7cfb9a8c5ad
font_01_sfnt_off000087f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F4 18192 bytes
SHA-256: 903941a417559e7684521db1d707d12e6b393a834b1c6361693a3f5a10f7088f