Malicious PDF — malware analysis report

Static analysis result for SHA-256 052e31e34bc25961…

MALICIOUS

PDF

33.3 KB Created: 2021-06-29 10:01:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2ff9d55d46537f104fa28e6ad9a04f09 SHA-1: 1617bf77ba809dce70e6a4fcaaa5c6125b79cfaa SHA-256: 052e31e34bc259612c140d688fd8175cce7daae4e424290e47ee8d2933d14e17
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 0.9824

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/431946152/comment-hack-roblox-pour-avoir-des-robux-game-hack PDF link annotation
    • http://opac.salatiga.go.id/slims7//repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/comment-avoir-des-robux-gratuitement-sans-etre-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/roblox-cheat-engine-64-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-get-free-robux-on-ipod_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-roblox-purchases_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/roblox-username-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/como-conseguir-robux-gratis-hack-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/hacking-tools-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/app-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/alguna-manera-de-hackear-cuenta-de-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-level-7-roblox-exploitws_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-hack-gravity-on-roblox-with-nopde_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
font_00_sfnt_off00002a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A77 22032 bytes
SHA-256: d89fb7dc4a643330597a87db8676312fd1ffcc4eae2d6782729c2d81fffd1e0a
font_01_sfnt_off00005b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B83 19716 bytes
SHA-256: 421aadbfba2846bff4ea924104de25a1d99fdfff3fdbc823c96a5f97c24fef0a

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