Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f7acfcd771dc35…

MALICIOUS

PDF

360.5 KB Created: 2022-03-04 09:26:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-18
MD5: 98583d52a037db58b418db728a3a8bb8 SHA-1: f0da2de9916a6bd7943e2506ccc14f9fdb47a00e SHA-256: 26f7acfcd771dc350be30768bbaccf78de065dc9f7b6a417d86b601fc1558b71
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

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=kalpana+breathless+video+song++free PDF link annotation
    • https://cortado.funeralinnovations.com/copilots/upload/files/84252046903.pdfIn PDF document text
    • https://incoyun.com/calisma2/files/uploads/39387973311.pdfIn PDF document text
    • http://merten-antik.su/kcfinder/upload/files/sobexusetoxisevobolirogal.pdfIn PDF document text
    • https://sokolzgierz.pl/web/uploads/files/ganege.pdfIn PDF document text
    • https://www.hotelashray.in/kcfinder/upload/files/lugupiwuxepom.pdfIn PDF document text
    • http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/74228607773.pdfIn PDF document text
    • http://technocom.pl/editor/file/63086695760.pdfIn PDF document text
    • http://www.studioamorosi.com/notizie/allegati/bifebitigijisepatapoxovu.pdfIn PDF document text
    • http://www.mmalappeenranta.com/tiedostot/files/madibikivitusuwibat.pdfIn PDF document text
    • http://mrybalko.ru/files/87869522022.pdfIn PDF document text
    • https://ka-base.no/images_students/files/91912460260.pdfIn PDF document text
    • http://www.puhito.hu/uploads/soxasomuririragovisewoziz.pdfIn PDF document text
    • http://bluelakehomestay.com/uploads/image/files/68315242046.pdfIn PDF document text
    • http://ilpiccantino.it/admin/data/img/uploads/files/77703272739.pdfIn PDF document text
    • http://serdceprirody.ru/userfiles/file/19585184883.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/162147b0d707dd---boreziponubavejatog.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621ba22b117dc---11175834176.pdfIn PDF document text
    • https://artasedanasingaraja.com/uploadfck/file/lopenalopolafume.pdfIn PDF document text
    • https://bclowermainland.gocascadia.com/images/cms/file/15084406292.pdfIn PDF document text
    • http://ubytovani-horak.cz/files/File/buzebiwobagene.pdfIn PDF document text
    • http://icr34.fr/icr/icr34.fr/www/files/files/rukufekomewexu.pdfIn PDF document text
    • http://www.cafeinca.com/img/public/contenido/file/87032701228.pdfIn PDF document text
    • http://travelsolutions.co/ckeditor/kcfinder/upload/files/gotezonumazusejegarimu.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620304c4c3110---gulelilakibevibuj.pdfIn PDF document text
    • http://geometrabottero.it/userfiles/files/vojabuzapopufudib.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_off000532c3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000532c3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000532c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x532C3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000549e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x549E3 10972 bytes
SHA-256: fd22b62594c07a81a33ca3cd307b0e56a2b9058469a4054b75bac4c0e1d067b8
font_02_sfnt_off000562dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x562DD 18764 bytes
SHA-256: f5ed9fd266d7bae044b8ce4639311e2a7867c97d73a195334a93a18e012d7959