Malicious PDF — malware analysis report

Static analysis result for SHA-256 6248d8e0fc08b428…

MALICIOUS

PDF

233.5 KB Created: 2022-03-20 01:20:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 094dfbc00eb3c474f21b0541043f5696 SHA-1: f9c86d2b9d84dd1fa63e42e2292556c96a4c1f32 SHA-256: 6248d8e0fc08b428f6b96d0a406ab287ca060a28db63dc9d7f501f9baf859630
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7243

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://norin.co.za/XSRYdR1H?utm_term=answering+specialists+inc PDF link annotation
    • https://www.montferri.com/admin/js/plugins/kcfinder/upload/files/munag.pdfIn PDF document text
    • https://limblength-sldf.fasamra.com/userfiles/file/29356558339.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621154611c5ee---seperopixumoxetutiriwupu.pdfIn PDF document text
    • http://kledingindex.nl/images/uploads/pijirozeju.pdfIn PDF document text
    • http://arborspringsforestry.com/img/files/katipagitovokidibe.pdfIn PDF document text
    • https://oceanflowerhotel.com/uploads/image/files/lekesafenelovijabudop.pdfIn PDF document text
    • https://ankaratutuncu.com/panel/kcfinder/upload/files/jelinojeni.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/92c0ce5e940857c5adbacae0cb657b4f/91127820520.pdfIn PDF document text
    • https://onlinendttraining.net/files/78487716274.pdfIn PDF document text
    • https://www.cistarekaupa.cz/kcfinder/upload/files/84204780079.pdfIn PDF document text
    • http://nut-shell.net/upload/files/motilas.pdfIn PDF document text
    • https://munkenpo.or.jp/kcfinder/upload/files/56147288515.pdfIn PDF document text
    • http://www.glutec.it/_admin/kcfinder/upload/files/litenas.pdfIn PDF document text
    • http://www.negyen.com/admin/ckeditor/kcfinder/upload/files/661221114.pdfIn PDF document text
    • http://zatuchlina.cz/upload/file/wuwozuretalawidofowajag.pdfIn PDF document text
    • http://robedecreateur.com/img/files/rudexatalan.pdfIn PDF document text
    • http://energy-partner.pl/kcfinder/upload/files/37441485975.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/277ea90bb6e87d3e2cad71aafa07af87/50617936685.pdfIn PDF document text
    • http://www.protectakoteasia.com/ckfinder/userfiles/files/zuparesupudakiji.pdfIn PDF document text
    • http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/zekizepugabow.pdfIn PDF document text
    • http://grafittipng.com/userfiles/files/bakagafesujo.pdfIn PDF document text
    • http://consoles-a-gagner.com/fckeditor/userfiles/file/71417449834.pdfIn PDF document text
    • http://www.egavilanes.com/ckfinder/userfiles/files/54872032938.pdfIn PDF document text
    • http://tattooindex.nl/images/uploads/6181682054.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620b250903956---66804994757.pdfIn PDF document text
    • https://aykutemlak.com/upload/ckfinder/files/pefirasudoragudakizapama.pdfIn PDF document text
    • http://a-pluset.com/userfiles/91112653770.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/660u4muk8mijbgr8ouvh8s4fqc/68175896214.pdfIn PDF document text
    • http://lukasikgroup.pl/Image/files/5123814952.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00033b4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33B4D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003526d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3526D 10496 bytes
SHA-256: 5553f4856f4255073dbd0c35a3fde5a23b7594483bf863bd5fdb1c8b0fc9c41e
font_02_sfnt_off00036a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36A84 17100 bytes
SHA-256: 22dc2f7c4ab2dc85328e3d73edbe4a7b869c2c24318bcdc33011557074ea7305