PDF malware analysis — malicious · 72b421eae07a060e

MALICIOUS

PDF

424.1 KB Created: 2022-03-23 06:00:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28

MD5: b74dfb54fe5d2a7402d517aafc61c8cb SHA-1: 5cbd5c52d5bd8836c512ea00119e35e5e60cd402 SHA-256: 72b421eae07a060e2254570fee3d059dcfefded0ab5afd3916aad81aa70a7f49

144 Risk Score

Machine Learning

Nyx PDF Classifier suspicious score 0.3533

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://lazav.co.za/XSRYdR1H?utm_term=sketching+user+experiences+the+workb PDF link annotation
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1621438f4bb2b3---13062730524.pdfIn PDF document text
- https://bi-kiesabbau.de/cmsimple/images/file/37556237985.pdfIn PDF document text
- http://runo34.ru/attachments/file/41922722567.pdfIn PDF document text
- http://alkord.kz/app/webroot/js/kcfinder/upload/files/nojajojojavovafowobozigur.pdfIn PDF document text
- https://www.swiftcargo.com/adminlogin/kcfinder/upload/files/29200088390.pdfIn PDF document text
- https://centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/47476931284.pdfIn PDF document text
- http://wakesup.org/userfiles/file/paxumufiraluzam.pdfIn PDF document text
- http://chrislahoda.ca/images/fck/file/netitogumoduwunekajumes.pdfIn PDF document text
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16205fbf07f882---virejorupoxugexelelili.pdfIn PDF document text
- http://hongming-eco.com/userfiles/file/rikedov.pdfIn PDF document text
- http://fairfresh.net/assets/admin/ckeditorimage/files/fatamopaku.pdfIn PDF document text
- https://unitytradefze.com/ckfinder/userfiles/files/genititamanofedupekexase.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/625a1b17b7192d5d11f70449d2e274b6/43300429232.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1623880f98d74d---kobumapadiwavebabus.pdfIn PDF document text
- https://annamsaigonlaw.com/upload/files/gujosilozokilutitir.pdfIn PDF document text
- http://gns3.swiz.eu/files/editor/6717604096.pdfIn PDF document text
- https://beleznayauto.hu/galeria/pictures/16826386482.pdfIn PDF document text
- https://gemwares.artchy.com/userfiles/file/33092460570.pdfIn PDF document text
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/48832276316.pdfIn PDF document text
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f89f1a4b3d9---63110746199.pdfIn PDF document text
- http://ridonhennet.eu/admin/kcfinder/upload/files/82520537455.pdfIn PDF document text
- http://program-pro.ru/userfiles/files/96148331371.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/gd756i6nafqvdh0s0gcu63dtun/34066873552.pdfIn PDF document text
- http://ecilingirler.com/resimler/files/75211091085.pdfIn PDF document text
- http://friulanamarmi.it/images/file/dawupupi.pdfIn PDF document text
- http://machinegroup.ru/img/outer/files/9282480457.pdfIn PDF document text
- http://www.derbysignandgraphics.com/uploads/file/pikekananovufumugiguxexub.pdfIn PDF document text
- http://wrtour.com/FileData/ckfinder/files/20220222_89228291B6AF1961.pdfIn PDF document text
- https://www.phutungnganhmay.com.vn/kcfinder/upload/files/6419431162.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210db008aba7---50452269452.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1621818be51a44---domokawufo.pdfIn PDF document text
- http://printways.delhiprinter.com/pa/trainstation/uploads/image/file/16982711278.pdfIn PDF document text
- https://sincomerciariospv.com.br/kcfinder/upload/files/nusolar.pdfIn PDF document text
- https://schneider-rozetki.su/kcfinder/upload/files/fekekenotixipexow.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16207e0127f954---werawasazikanose.pdfIn PDF document text
- https://www.officinasapori.com/_admin/kcfinder/upload/files/betonuvegitegaja.pdfIn PDF document text
- https://bp-con-esh.com/kcfinder/upload/files/84426076667.pdfIn PDF document text
- http://hoteldanang.com/uploads/images/files/55404119405.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000619cf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x619CF	11040 bytes
SHA-256: `4c905b24367f104673a468607381b484ca3cdba3362fbb3ee9e8786db1ed2be5`
`font_01_sfnt_off00063350.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63350	18060 bytes
SHA-256: `19ef1fc1ce6608508c5674d9a9723134c1d754500b733ad7bb6a34166817e3ae`
`font_02_sfnt_off00066289.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66289	16560 bytes
SHA-256: `924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9`
`font_03_sfnt_off000679a7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x679A7	16220 bytes
SHA-256: `207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6`

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