Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac973ef336279a8e…

MALICIOUS

PDF

47.5 KB Created: 2021-05-14 09:03:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: bd1e257ee72200f50c87a740d7552b69 SHA-1: 815ce70db7e8896df130213000a4306344d300be SHA-256: ac973ef336279a8e0da53a16905ac227e177d57c3ebe1498a104c32cc87ae5b9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and generators, directing users to external URLs. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it is designed to redirect users to potentially malicious websites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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-rare-cards-for-coin-master-christmas-game-hack PDF link annotation
    • http://mcdougalfamily.site/images/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/www-robux_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/robux-free-c_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/100-free-coin-master-spins_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049bc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49BC 24956 bytes
SHA-256: 6ccccef0c3715129661a9c70f96ce2bfad86d87b4100dd0fbfc19abc97ee172d
font_01_sfnt_off000082bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82BC 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_02_sfnt_off00009747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9747 18308 bytes
SHA-256: 8c5943ef95f7ea8b077ca8bfbfa006a81071f7964d57450ae0ae893383018bd5

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