Malicious PDF — malware analysis report

Static analysis result for SHA-256 73e0b6aaeec641bc…

MALICIOUS

PDF

44.9 KB Created: 2021-05-10 18:31:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: fe11145cafab6b69ceaabf800b915192 SHA-1: abcae994345ebe672cc02ab379b39e1f74e87a55 SHA-256: 73e0b6aaeec641bc3949ef5092be55d5b088a675421ab770368511571721a75f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a high-confidence heuristic firing indicating it's a lure for game hacks. The document body explicitly mentions 'Free Coin Master Spins 2021' and directs users to external sites like 'netcdn.xyz' which are likely used to deliver further malicious payloads or engage in scamming activities. The presence of numerous similar URLs further supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-coin-master-spins-2021-game-hack PDF link annotation
    • http://ebook.itn.ac.id/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-spin-link_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/robuxglobalcom_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://ebook.itn.ac.id/repository/how-to-play-minecraft-for-free_GM479516143.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
stream_003_off00004a82.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A82 31200 bytes
SHA-256: b892c0f65ac37c1fb573771b7a2aa3f0042d29be91750a135dd7f51954371fe8
font_01_sfnt_off00008d3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D3A 18288 bytes
SHA-256: cbf21fc5c11f74798808ab0cc71af5e4bf323ced5a050f8983f0748b8c809d88

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