Malicious PDF — malware analysis report

Static analysis result for SHA-256 8660f40f880e59dd…

MALICIOUS

PDF

43.4 KB Created: 2021-05-16 00:42:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 34c839147c2685d7c61b3cece0b81aff SHA-1: 3edafa6978fb2e3e9b2aa3000a0f5718bc06e196 SHA-256: 8660f40f880e59dd899522890bb3ea08b8f3b404ee453aa66f4511c181489c41
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/479516143/minecraft-windows-10-key-free-game-hack PDF link annotation
    • http://beautyforyou.fr/images/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-mster-free_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/levvvel-coin-master_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/robux-today_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/body-roblox_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-generator_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/roblox-earn_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://beautyforyou.fr/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-free-spins-link-2021-today_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_off00004b71.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B71 26068 bytes
SHA-256: 6bc45a0113c1889ee3535b7832b0bd281fe93ef90ca63e8a16d79b8f605a1124
font_01_sfnt_off0000861a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x861A 18704 bytes
SHA-256: a36dfd25d96361324b643dcf25d0bbe587ae4faa1fc7994e7ccdab15621c1fe2