Malicious PDF — malware analysis report

Static analysis result for SHA-256 467beb557f5618aa…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 17:14:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: dca3d1ecd31451ce7bfdc3bb78d739bb SHA-1: c50fc44977fd520b3083d217462d1177107732ea SHA-256: 467beb557f5618aab87ce387997fe0c4c9fab5d7af8f4e135be01d06107c51cc
82 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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 http://netcdn.co/app/406889139/coin-master-free-spin-game-game-hack PDF link annotation
    • https://www.baratravelling.com/ckfinder/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/free-robux-reddit_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • https://www.baratravelling.com/ckfinder/userfiles/files/10-free-spins-coin-master_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_002_off00002f70.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F70 23060 bytes
SHA-256: e32fc671ba13a0ad2c89cde545fb41648824d7f5adc18bc2d86a586c5bf2ebfc
font_01_sfnt_off0000632b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632B 18432 bytes
SHA-256: ee008055d10f27297be3734796462f91ba90a8b64a2a08c15e7929fcf97c21d4

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