Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5dcc8e8d73b13b5…

MALICIOUS

PDF

44.2 KB Created: 2021-05-19 12:02:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: eb7d41b3c3a7c228af01de1bb2915400 SHA-1: 88f9d4118ae215b90fdd3e43142f02b5dd143b4b SHA-256: d5dcc8e8d73b13b5637bc68c76d4c8002216aa8a76f2a230f24e10fc1356a839
90 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/1330123889/pubg-uc-hack-apk-game-hack PDF link annotation
    • http://solidcommunication.ch/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/master-free-spin_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://solidcommunication.ch/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/can-you-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://solidcommunication.ch/images/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://solidcommunication.ch/images/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • http://solidcommunication.ch/images/free-spins-coin-master-2021_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_off00004a03.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A03 29064 bytes
SHA-256: 9b21e143ef393731dd4b83aa5d6b5cd1aa2c65067151d942c1cc473c54a23470
font_01_sfnt_off000089ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89EF 18472 bytes
SHA-256: 07bd7a1deba78ff07cffa151e23a9278eb0f82bec692a88c7663d88693bfc6a3

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