Malicious PDF — malware analysis report

Static analysis result for SHA-256 40d46cb89a84e33a…

MALICIOUS

PDF

42.9 KB Created: 2021-05-19 16:18:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8483cd3a426dd5b3aafb4bfabba2054b SHA-1: 783ca8cfd2bbe0d28d5be2bf8ead46abdd4c78bc SHA-256: 40d46cb89a84e33a34f86fdd03a454b2139fb1bc6e7dd62624dfeee607de37a4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free in-game currency, directing users to external URLs. The presence of a 'free generator / game hack' redirector heuristic and numerous embedded URLs strongly suggests a social engineering attempt to trick users into visiting potentially malicious sites. While no scripts were directly extracted, the PDF structure and heuristics indicate a malicious intent to redirect users to external resources.

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/coin-master-free-gift-link-2021-game-hack PDF link annotation
    • https://newenglandafs.com/images/make-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-devil_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coins-master-hack_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/what-games-give-you-robux_GM431946152.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_off00004b65.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B65 25196 bytes
SHA-256: 2d33191458387fbcb045c5037be97690cb71ef91429cb74ef71208c1a50354ad
font_01_sfnt_off0000857b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x857B 18284 bytes
SHA-256: 00f588a17a5ec62cfb33c50734468f0ac7c021c7f981e3ddf1024eb2998eadd5

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