Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02260a132c11f7e…

MALICIOUS

PDF

45.7 KB Created: 2021-06-03 23:49:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 805480c593be8253dc0580a9d849ae3a SHA-1: ae099c8b315b9c148690493c28c918265d3b8b4f SHA-256: e02260a132c11f7ed97a9bb0959ac263ec4b4e5dda9d7fa0d515e2c46e9fae8f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure. The embedded URL, 'https://netcdn.online/app/406889139/coin-master-33-hack-version-download-game-hack', is likely used to redirect the user to a malicious site. The ML classifier also flagged this PDF as malicious, supporting the assessment of a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/coin-master-33-hack-version-download-game-hack PDF link annotation
    • http://www.library.umbjm.ac.id/repository/coin-master-hack-download-android_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/robux-earning-sites_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/fb-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/roblox-robux-generator_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_004_off00005168.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5168 27240 bytes
SHA-256: 3e1bd25d6bd799bac63b8dc46c05cf70dc1daeb4561df8aa7d64d850a713019b
font_01_sfnt_off00008ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE3 18604 bytes
SHA-256: 576890e4c763f9db6306a154ec89977ee7624ba5680b6859e355f4a2c18aa410

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