Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd9971955b2afb07…

MALICIOUS

PDF

46.8 KB Created: 2021-06-03 13:51:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ecce3adeda8d4a53aba8f697096b59fd SHA-1: f80636b9ccd6b15b5e5b6cfc7e1c1db31aa4d3e3 SHA-256: fd9971955b2afb0722b1ebe01867e40160cb121123ce4f1cb8ddb0e62d18cb74
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to game hacks and free Robux, directing users to a malicious URL. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.online/app/431946152/a-lot-of-robux-game-hack PDF link annotation
    • http://suaedy-library.net/repository/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/without-pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/freespinandcoinblogspotcom-2021-11-coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/pokemon-go-free-vs-ultra_GM1094591345.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FAD 25716 bytes
SHA-256: 590e9f6974cd14d78571a17d0b8254c6dd0e6198d3d53d68bba6e4e28c9b6201
font_01_sfnt_off00008b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6C 2820 bytes
SHA-256: 34dd21cbcbbf8680f9624d5ddfa25e49232e6768200f74ddacb5347fd7a5f6dc
font_02_sfnt_off0000950d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x950D 17952 bytes
SHA-256: 59ace597cf85b15723adf2883f87d3990bd92e723e57ffb30000155e26dd48af

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