Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eb4212b20fc91e6…

MALICIOUS

PDF

32.1 KB Created: 2021-06-25 15:36:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1c6e3e2429756c20a4dc72fabd072cd1 SHA-1: 6a582be07bf6359218046e991d6674d15cf32d93 SHA-256: 8eb4212b20fc91e6ac6b27f16914bc4a5c0062d88fd11d809556fd2843389b3b
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 0.9824

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.co/app/431946152/bleus-free-robux-game-hack PDF link annotation
    • http://wwic.wales/uploads/files/files/how-to-hack-nuclear-tycoon-money-on-roblox_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-60-spins_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/robux-2021_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/get-free-robux-no-download-no-verification_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/comment-cheat-les-robux-ilimit_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/free-robux-gift-card-giveaway-live_GM431946152.pdfIn PDF document text
    • http://wwic.wales/uploads/files/files/free-robux-site_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000292a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x292A 21880 bytes
SHA-256: 9086b67a7da925e206474b8ccb41db9e01f8295da17bee65668e569e32066ff7
font_01_sfnt_off00005942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5942 18788 bytes
SHA-256: 230526f413e1ace4972b114866e9d03172688c808b709623f29c49276b0afef2

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