Malicious PDF — malware analysis report

Heuristics 5

• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://123podkrovie.sk/editor_uploads/files/45040135115.pdf In PDF document text

  • http://ikra-ekb.ru/files/fckeditor/file/47381202254.pdfIn PDF document text
  • http://yuli-china.ru/d/files/keregogadifonazovosaj.pdfIn PDF document text
  • https://vasutaszeneiskola.hu/ckfinder/userfiles/files/62753938735.pdfIn PDF document text
  • http://yuemeism.com/uploadfiles/files/27525028763.pdfIn PDF document text
  • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612d04373d80c---mugugakovusipi.pdfIn PDF document text
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16071cab972478---dejigasari.pdfIn PDF document text
  • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/318505f146a84bc970bfde2ceefbf1ca/46023623606.pdfIn PDF document text
  • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/f64eo8mi7nkh4rtb7brddu4jn3/jezaj.pdfIn PDF document text
  • https://bio86.net/fichiers/18012692466.pdfIn PDF document text
  • http://esangsok.com/upfile/files/18707718338.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/ocfepetsvo926vp48k1u3f6v24/14897585704.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afbe5fc303d---fusijijavizolivadagipage.pdfIn PDF document text
  • http://wohingltd.com/userfiles/dagikisesitavitako.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/6974e03362998c98b532ecbff9a80e31/purametegetusakem.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/h625v0he8hcdk1ts8fi24r7ca3/92746674588.pdfIn PDF document text
  • http://vce34.ru/attachments/file/diluzunasito.pdfIn PDF document text
  • https://dptech.vn/uploads/files/nitudevajuxatibifo.pdfIn PDF document text
  • https://obermeyer-modemarkt.de/upload/file/lifuregixovaganenixem.pdfIn PDF document text
  • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/u291q4j9llda2k25gdt80ioova/53004358930.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607681bd7c662---29669353373.pdfIn PDF document text
  • http://lblussana.it/images/file/97473269124.pdfIn PDF document text
  • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/2nti3ja15bd1643mj0bekiuah7/62717639784.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=free+radical+addition+reaction+pdfPDF link annotation
  • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/a339e7b0cde70ef8417126f0b619d6ca/vizumaguxaw.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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