Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc2d352be4e8a1a8…

MALICIOUS

PDF

37.4 KB Created: 2018-06-11 09:03:25 -04:00 Authoring application: wkhtmltopdf 0.12.4 (via Qt 4.8.7) First seen: 2020-08-10
MD5: 454baa7bda01406c9743d77eab018d88 SHA-1: 27c73e1fb7770166b26f21ca25d08e082055e7f2 SHA-256: fc2d352be4e8a1a83eb3ab87dca04b40de313637570e3d395d3d72ea44e73820
130 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8824

Heuristics 4

  • Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOAD
    The ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
  • PDF carries a PHP-gateway SEO-spam PDF link farm medium PDF_SEO_PHP_GATEWAY_LINK_FARM
    PDF contains four or more clickable links whose target is a `.php` gateway with a multi-word search-PHRASE document slug embedded after it (e.g. 'index.php?.../binary+options+trading+nz.pdf' or 'pdf.php/cialis-dosage-side-effects.pdf'). Legitimate PHP-served documents use a filename or numeric id, not a search-query phrase, so this is the generated SEO link-farm shape — pharma / binary-options / 'free download' spam that ranks for queries and routes users into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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
  • 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://uncpbisdegree.com/download3.php?q=toyota-rav4-wiring-diagram-2006.pdf In PDF document text
    • http://uncpbisdegree.com/download4.php?q=toyota-rav4-wiring-diagram-2006.pdfIn PDF document text
    • http://www.modifiedlife.com/request-toyota-remote-starter-wiring-diagram/In PDF document text
    • http://www.modifiedlife.com/car-stereo-radio-wiring-diagram-2005-toyota-corolla/In PDF document text
    • http://blazersdemoda.com/2000/2000-toyota-celica-fuse-box-diagramIn PDF document text
    • http://www.wcrhca.org/2/t/2013-toyota-hiace-interior-light-wiring-diagram-free-ebook.pdfIn PDF document text
    • http://www.saudi-un-ny.net/In PDF document text
    • http://www.autogenius.info/gmc-yukon-2005-2006-fuse-box-diagram/In PDF document text
    • http://www.autogenius.info/volkswagen-phaeton-2002-2006-fuse-box-diagram/In PDF document text
    • https://qcwo.com/technicaldomain/toyota-corolla-immobilizer/In PDF document text
    • http://batteryreconditioningezdiy.com/changing.a.car.battery.for.a.2006.ford.ranger=cc4254/In PDF document text
    • http://lightsout.org/disable.htmlIn PDF document text
    • https://www.themanualstore.com/category-s/36285.htmIn PDF document text
    • https://www.themanualstore.com/Harley-Davidson-V-Twin-52-0435-p/vtwin52-0435.htmIn PDF document text
    • http://batteryreconditioningezdiy.com/battery-for-cars-mini-quad/car-battery-advance-auto=c11511/In PDF document text
    • http://uncpbisdegree.com/1/service-manual-evinrude-etec-115-2006.pdfIn PDF document text
    • http://uncpbisdegree.com/1/the-great-revolutions-the-revolutions-of-ancient-rome.pdfIn PDF document text
    • http://riverside-resort.net/1/volume-finder.pdfIn PDF document text
    • http://uncpbisdegree.com/1/style-guide-branding.pdfIn PDF document text
    • http://uncpbisdegree.com/1/social-political-and-economic-thoughts-of-mahatma-gandhi-vinoba-and-jayaprakash-narain.pdfIn PDF document text
    • http://riverside-resort.net/1/wired-the-short-life-and-fast-times-of-john-belushi-bob-woodward.pdfIn PDF document text
    • http://riverside-resort.net/1/wb2jkj-ham-radio-manuals.pdfIn PDF document text
    • http://uncpbisdegree.com/1/terminal-beach-berkley-sf-f-928.pdfIn PDF document text
    • http://uncpbisdegree.com/1/story-problem-and-solution-powerpoint.pdfIn PDF document text
    • http://uncpbisdegree.com/1/steinberger-guitar-owners-manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://www.cargurus.com/Cars/Discussion-c5254_ds646975In PDF document text
    • https://www.cargurus.com/Cars/questions/In PDF document text
    • https://www.cargurus.com/Cars/questions/Toyota-Questions-qt6In PDF document text
    • https://www.cargurus.com/Cars/questions/Toyota-RAV4-Questions-qt577In PDF document text
    • https://en.wikipedia.org/wiki/ToyotaIn PDF document text
    • https://www.manualslib.com/manual/1066367/Toyota-2007-Rav4.htmlIn PDF document text
    • https://www.manualslib.com/brand/toyota/In PDF document text
    • https://www.manualslib.com/brand/toyota/automobile.htmlIn PDF document text
    • https://www.manualslib.com/products/Toyota-Rav4-2007-2965672.htmlIn PDF document text
    • https://www.cargurus.com/Cars/Discussion-c3602_ds323927In PDF document text
    • https://www.manualslib.com/manual/863460/Toyota-Rav-4-2006.htmlIn PDF document text
    • https://www.manualslib.com/products/Toyota-Rav-4-2006-3672285.htmlIn PDF document text
    • https://www.etrailer.com/faq-wiring.aspxIn PDF document text
    • http://www.fixya.com/cars/t3251846-need_diagram_routing_serpentine_beltIn PDF document text
    • http://www.fixya.com/cars/chevrolet/troubleshootIn PDF document text
    • http://www.fixya.com/cars/chevrolet/expressIn PDF document text
    • http://www.fixya.com/cars/p695567-chevrolet_2004_expressIn PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=617350In PDF document text
    • http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409In PDF document text
    • https://go.microsoft.com/fwlink/?linkid=868922In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=617297In PDF document text
    +1 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53AD 10620 bytes
SHA-256: 14fc4b0b2c56066399f0c3b8f8fca07e695e879d44fef9e465b71cc2aaf2bfc8
font_01_sfnt_off00007541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7541 7508 bytes
SHA-256: c6d4e0b1c1ff48e2a18eb4e4fdb8868d5d243523393b2b3d8b4823cd3f64a9c1