Malicious PDF — malware analysis report

Static analysis result for SHA-256 226119e256227eeb…

MALICIOUS

PDF

41.9 KB Created: 2021-05-13 20:30:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9b8bfd50d91765be4453a7edb7792947 SHA-1: 6825fd376a08f4a9ad7bf0b685f32fb4e2af6992 SHA-256: 226119e256227eeb5d565fa90c722a4c7a5cb302288db6f5c1f468b359b0a444
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 0.9971

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/406889139/free-spins-from-coin-master-game-hack PDF link annotation
    • http://www.gadanie.lv/images/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/websites-for-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-chip_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_off0000463c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x463C 25504 bytes
SHA-256: 6c3270df6a71f4060b74e1e8cd86e5d1c7fe63aca2c1d2c29bbd74b77beafc6a
font_01_sfnt_off000081e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E0 18148 bytes
SHA-256: a8179ab01d9f651dd6fb5ce3364ead5561884d8b40fe8a62eaf26fde05d0c646

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