Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69f3cad99af21c0…

MALICIOUS

PDF

41.5 KB Created: 2021-05-11 20:46:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 565ccd79a2e7b9c71818bc79520fb928 SHA-1: 8bdd1bce3755639a9f5f4965ca27bc4b3b6b6a65 SHA-256: b69f3cad99af21c0a6ae363326170072092adf1a5eda4b0315ebb57bfda4bcd2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.9971

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/479516143/minecraft-java-edition-free-trial-game-hack PDF link annotation
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/hack-master-coin_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-rape_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/robux-sites_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/rape-simulator_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/ww-roblox-come_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-link-download-hack_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_003_off0000497f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x497F 23852 bytes
SHA-256: 2af8a6d31b83b5c248f1b4af7f6199fae88517ab887bd4d041eeab48f06379d0
font_01_sfnt_off00007fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FDC 18240 bytes
SHA-256: 1be29b22a500e2a60a7236cc7f3818504a778037c129f908a3826a58d12b939a

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