Malicious PDF — malware analysis report

Static analysis result for SHA-256 af28faba4e69375c…

MALICIOUS

PDF

345.5 KB Created: 2022-02-06 00:47:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 2244186a4bea0b0bb671b6d5e326f635 SHA-1: fb468cb4a9f4b6f7af12c7a1960d752d40b332c5 SHA-256: af28faba4e69375cfaaa3da3f0fb1dcdf8554b8c53087b3c18620c1ee2cfd1b4
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5426

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://colod.co.za/XSRYdR1H?utm_term=mandated+reporter+illinois+elder+abuse PDF link annotation
    • http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/vatosukasaz.pdfIn PDF document text
    • http://limuzine.md/userfiles/file/71084549019.pdfIn PDF document text
    • http://anm-av.de/uploads/files/22944173932.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/guwekikiboxisamuta.pdfIn PDF document text
    • http://primewritings.grand-essays.com/media/uploads/files/12011196998.pdfIn PDF document text
    • http://soncongnghiepjotun.com/media/ftp/file/78579292607.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9544ae901119f20a430522b613786676/99481317875.pdfIn PDF document text
    • http://chaputlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/daginera.pdfIn PDF document text
    • http://yetisirkaucuk.com/firma/files/15101856826.pdfIn PDF document text
    • http://kamerton.nl/clientfiles/fiwebunosevarolasu.pdfIn PDF document text
    • http://sz-nuoyi.com/Upload/file/2021100705235518251.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1610e9f022596d---ruvegalix.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/16161849f9d7e0---10872377786.pdfIn PDF document text
    • http://bsa-billiard.by/images_from_html_editor/file/12334711360.pdfIn PDF document text
    • http://dh-cell.net/ckfinder/userfiles/files/tupejarafujigimimuzij.pdfIn PDF document text
    • http://dailythang.com/userfiles/files/47130853615.pdfIn PDF document text
    • http://naturallabs.fr/userfiles/file/pokekekisurokuvorulalow.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/qc73elb23oa2c6atc0bd2sc8u8/61253710785.pdfIn PDF document text
    • http://stepasidemedical.com/images/uploads/file/69542382344.pdfIn PDF document text
    • https://successstudio.net/userfiles/file/31152678460.pdfIn PDF document text
    • https://www.swaraagmusic.com/public/templateEditor/kcfinder/upload/files/96094176837.pdfIn PDF document text
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1619d711f6c84f---8487636669.pdfIn PDF document text
    • http://3mfa.com/images/editor/files/88220681443.pdfIn PDF document text
    • https://ecoverservice.be/gallery/file/57234996397.pdfIn PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/ps9j0s5vht9jbrht8st1bp1mt0/zenizutubowawoku.pdfIn PDF document text
    • http://bag777.coco1490.com/upload/file_folder/file/kiselasex.pdfIn PDF document text
    • https://banerjeetourspecial.in/ckfinder/userfiles/files/44659340925.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/161004ae0ba4ab---80883231063.pdfIn PDF document text
    • http://praguetransfer.com/files/file/31694615648.pdfIn PDF document text
    • http://rchs1964.com/clients/5/58/580abc73d3aac4ea3a2bdd7c75327783/File/65405355081.pdfIn PDF document text
    • http://hongdacable.com/d/files/pidofixirewukuvivijif.pdfIn PDF document text
    • https://udruga-invalida.hr/files/newuvikuzup.pdfIn PDF document text
    • http://st-ark.it/userfiles/files/2420601563.pdfIn PDF document text
    • http://catmo.fr/kcfinder/upload/files/xuzunaketenedolusu.pdfIn PDF document text
    • https://maggies-handmade.com/UserFiles/files/83172530695.pdfIn PDF document text
    • http://jlsxjy.com/right/UploadFile/file///2022010705090873499.pdfIn PDF document text
    • http://rostocker-taxi.de/resources/files/42253435306.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/igafikuwavegul.pdfIn PDF document text
    • http://likebarcode.com/image/files/20220202_040427.pdfIn PDF document text
    • http://jg-academy.com/uploads/FCKeditor/file/rinolisug.pdfIn PDF document text
    • https://prolocolidodisavio.org/ckfinder/userfiles/files/beviwizivodene.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_off0004f973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F973 17212 bytes
SHA-256: 45d0b681f190850bb442d20ffc447526283d0b0335a0df25e3c736bcbdaeaec0
font_01_sfnt_off00052663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52663 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00053d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53D84 10620 bytes
SHA-256: 21b0750c013b358f6f01505f7eff9af28265ef8eeb1e5fcb593b1a0979409b69

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