Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e36fa210e79592d…

MALICIOUS

PDF

453.9 KB Created: 2022-02-06 01:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: c24413aa65d2ccab5302ed767664525b SHA-1: 3e2cae88d92e887e5a6881209109f0d49926ec56 SHA-256: 4e36fa210e79592df67662fce146b63e52f85c2d0444960192ca20993ed74e26
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5342

Heuristics 6

  • 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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=contexto+social+pdf PDF link annotation
    • http://ordineveterinarivenezia.eu/userfiles/files/59971961226.pdfIn PDF document text
    • http://exim5.hu/_user/file/poturizaxun.pdfIn PDF document text
    • https://reitinguok.lt/userfiles/file/nuwabivepufu.pdfIn PDF document text
    • http://elskenecologie.nl/files/46363584435.pdfIn PDF document text
    • https://securitydm.eu/slicice/file/panitenogozo.pdfIn PDF document text
    • http://fotocaroli.it/userfiles/files/xeguritodobawexakasekofix.pdfIn PDF document text
    • http://baheth24cars.com/ckfinder/userfiles/files/sipomepoja.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/a48ed4c357dcef5e37ce4a8419ae77df/40311010174.pdfIn PDF document text
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/12855f73b2c9936f8174c5fb70a3c91b/vozigevawud.pdfIn PDF document text
    • https://quanghuydulich.vn/img_duhoc/files/dabofivamosokisaro.pdfIn PDF document text
    • https://hkbca.org/UploadFiles/file/20210805124409188.pdfIn PDF document text
    • https://healthmatters.me/userfiles/file/sezokedenazuzunewavonik.pdfIn PDF document text
    • https://sportnazona.bg/f/uploads/files/gobemonusalun.pdfIn PDF document text
    • http://rfychina.com/upfiles/files/16250888532838.pdfIn PDF document text
    • http://sity-luxe.ru/userfiles/file/80839055589.pdfIn PDF document text
    • https://zbmbudomont.pl/userfiles/file/susigelavurubozejare.pdfIn PDF document text
    • https://kompaspt2.com/contents/files/71782575272.pdfIn PDF document text
    • http://biosystech.com/pdsFck/file/830727229.pdfIn PDF document text
    • https://robert-zauer.cz/userfiles/file/jojevikigolusureb.pdfIn PDF document text
    • http://www.lovebliss.tw/UserFiles/files/33766095932.pdfIn PDF document text
    • http://fujavietnam.com/images/Download/legeruneriniperav.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/5ea84933b1f13714de0fa5ad6f708431/mifulumakebeb.pdfIn PDF document text
    • http://canadanur.com/resimler/files/bumikiremujejepit.pdfIn PDF document text
    • http://jszl-rolls.com/filespath/files/20211106221400.pdfIn PDF document text
    • https://fortworthdental.net/cmsCart/upload/file/larejipujirewobu.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f5c36b5206c---mitezipozawevororovoti.pdfIn PDF document text
    • http://www.malagatour.es/ckfinder/userfiles/files/91729414138.pdfIn PDF document text
    • http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/22829552109.pdfIn PDF document text
    • https://haisanquangninh.org/data/dulieu/files/xetedebegamofoz.pdfIn PDF document text
    • http://bakoca.hu/files/file/maxapijetibolul.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/66be0ae42555d16fb00e2e0614c4104c/zolifolefakinofij.pdfIn PDF document text
    • http://sireny.net/share/files/98805905083.pdfIn PDF document text
    • https://burlingame.com/wysiwygfiles/file/zizonewokibon.pdfIn PDF document text
    • https://altinone.cz/files/ckfiles/file/4173988788.pdfIn PDF document text
    • http://klemanpince.hu/files/file/xujogawutuwewel.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_off0006aa44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA44 10648 bytes
SHA-256: a2adf43faaaf2b2b8ced1c275e82f3fa071ef0bf8ac28cf3aaa1f6018381b536
font_01_sfnt_off0006c2d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2D8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006d9f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9F3 17656 bytes
SHA-256: 538efbd2c1d7419295be3adb87e50318791b958c55fd16cea1e0ef5709d16dda