Malicious PDF — malware analysis report

Static analysis result for SHA-256 c86fed47fdea35c1…

MALICIOUS

PDF

33.7 KB Created: 2021-06-19 01:42:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d3faa2bf854d0239209fa4dfd31e1428 SHA-1: 51dbe69869611b1d37758a38c3ff2bcb94b35871 SHA-256: c86fed47fdea35c19e0f8175af379bc24a9d1c537b5f407c35623a24b8272753
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which redirects to a malicious URL. The document body and embedded links strongly suggest a phishing attempt to trick users into visiting a site that likely hosts further malicious content or exploits. No scripts were extracted, but the PDF structure and embedded URIs indicate a malicious intent to redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/free-flying-practice-roblox-game-hack PDF link annotation
    • http://sudamericarural.org/images/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-get-free-robux-2021-easy-nov_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/earn-robux-com_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-exploit-cheat-engine_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/new-roblox-free_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-do-you-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-do-yu-hack-big-brother-in-roblox_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-hack-teleport-in-roblox_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/compte-roblox-hacker_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_off00002ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED1 21832 bytes
SHA-256: e1916b80324a643accefead7ba0c76c9dbb3bcb980dab041a00110a5df34ca43
font_01_sfnt_off00005eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEB 19020 bytes
SHA-256: 9af3c7587544bc56def675284c51b2f98e12755c87508f9f41859efd762e069c

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