Malicious PDF / .VIR — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PHP webshell / backdoor source critical WEBSHELL_PHP
  The file contains PHP server-side code with the signature of a webshell/backdoor (named PHP webshell banner (madspot)). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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.
• 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 https://colod.co.za/XSRYdR1H?utm_term=marathi+song+ringtone++2019 PDF link annotation

  • https://medtek.vn/storage/file/gotipek.pdfIn PDF document text
  • https://infotechloyalty.com/bot/ckfinder/uf/files/68622284636.pdfIn PDF document text
  • http://webyork.co.uk/kcfinder/upload/files/22901149751.pdfIn PDF document text
  • https://exihomes.com/userfiles/files/kitefedinexulonesexug.pdfIn PDF document text
  • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/161eaba1c5a114---xilapumojegebivanino.pdfIn PDF document text
  • https://enilubricantvn.hoakhanh.vn/uploads/image/files/25981109930.pdfIn PDF document text
  • https://digitaluzaktanegitim.com/calisma2/files/uploads/jevemezivepu.pdfIn PDF document text
  • http://randygordonlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nadozobutagiwegape.pdfIn PDF document text
  • http://ux-school.ru/files/files/70163893786.pdfIn PDF document text
  • http://aytekinpolatel.com/image/files/72974795841.pdfIn PDF document text
  • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160f53e38dff61---bigebagabibagetutetedo.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610133ba87c57---18524856903.pdfIn PDF document text
  • http://mcenterdk.ru/fck_editor_files/files/23155678724.pdfIn PDF document text
  • http://vce34.ru/attachments/file/delelavabuxatefaw.pdfIn PDF document text
  • https://madspot.dk/ckfinder/userfiles/files/kabur.pdfIn PDF document text
  • http://opuspointpartner.com/ckfinder/userfiles/files/rokisopuwenolo.pdfIn PDF document text
  • http://abbeytraining.net/userfiles/file/25247423190.pdfIn PDF document text
  • https://ruh-center.ru/userfiles/file/gupim.pdfIn PDF document text
  • https://xn--80apefbdm9ah5g.xn--p1ai/userfiles/81829663738.pdfIn PDF document text
  • http://aqbnb.com/uploadfile/file/85435174562.pdfIn PDF document text
  • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/hja18ap46t0phu35q2h7jmc2n0/25810483367.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/9kcndki8juasj1gtid2ci1m7su/rovus.pdfIn PDF document text
  • http://jonme.net/ckupload/files/ribizitolapobusimobulimel.pdfIn PDF document text
  • http://harasim.cz/uploaded/files/faxigav.pdfIn PDF document text
  • http://anpo.vn/upload/files/vojoja.pdfIn PDF document text
  • http://cansuyu.org/resimler/files/80518191123.pdfIn PDF document text
  • http://avtosfera28.ru/userfiles/file/wokejidadobizaxolupubaxi.pdfIn PDF document text
  • http://kvarkeno56.ru/userfiles/file/fasidinitep.pdfIn PDF document text
  • http://demenagements-remond.fr/userfiles/file/20210727160122.pdfIn PDF document text
  • https://infiniteprospects.com/FCKeditor/file/18429136880.pdfIn PDF document text
  • https://forumhrdbekasi.com/webroot/userfiles/files/10001096699.pdfIn PDF document text
  • http://ctm.it/userfiles/file/15772586361.pdfIn PDF document text
  • http://federicozucchettiarchitetto.eu/userfiles/files/vejaxubixegokemotenuk.pdfIn PDF document text
  • https://amatnieks.lv/pictures/image/75306612661.pdfIn PDF document text
  • http://ariogalospspc.lt/userfiles/file/96876332006.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/65964434628.pdfIn PDF document text
  • http://classtool.info/upload/files/rezijanojewemojujinirow.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 extracted file (font_00_sfnt_off00051053.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00051053.bin)

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