PDF malware analysis — malicious · 2b6ac1a2774e99ba

MALICIOUS

PDF

215.1 KB Created: 2022-02-23 03:56:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17

MD5: 5b005d6fa84f3499477618ddee474901 SHA-1: 7c8db6a129f5a8275a9d393804fc7f4e824a87b5 SHA-256: 2b6ac1a2774e99ba14c54b4a47619a553420aa56470c0c5166d0487d1cbe6826

166 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.7607

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://sunuf.co.za/XSRYdR1H?utm_term=2d+discrete+wavelet+transform+matlab PDF link annotation
- https://kameno.bg/userfiles/files/43485223819.pdfIn PDF document text
- http://12shio5.com/contents/files/37885221653.pdfIn PDF document text
- http://phyllisrubensteinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/joxiroxalugoxisuferoj.pdfIn PDF document text
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/15381510175.pdfIn PDF document text
- https://cl-metalparts.com/d/files/liwovetesibutulumorasa.pdfIn PDF document text
- http://life-homeshop.buyout8.com/asset/uploads/files/28400782869.pdfIn PDF document text
- http://simonkuehner.de/gfx/userfiles/files/nomogokobelimetu.pdfIn PDF document text
- http://brezov-gaj.si/uporabnik/file/25843206062.pdfIn PDF document text
- http://partynfun.com/kcfinder/upload/files/bizebusaxi.pdfIn PDF document text
- http://dorapeyzaj.com/userfiles/file/20329253151.pdfIn PDF document text
- https://pamukoglu.com/userfiles/file/ratuxibuwulir.pdfIn PDF document text
- http://venusitos.com/kcfinder/upload/files/93285407465.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/d540a170168c36dddd737ad1d0224317/6507814103.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/7dd3030ffe2b9be4262a9fd6fb6c6f5d/virebunukis.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b6ac71bf6e1---sazed.pdfIn PDF document text
- http://brenno-tojestto.pl/userfiles/file/29507197243.pdfIn PDF document text
- http://voyagevietnamlaos.com/hinhanh/file/88024776238.pdfIn PDF document text
- http://trip-sale.ru/userfiles/file/rapezulav.pdfIn PDF document text
- http://pk-rowery.pl/user_pict/file/xamotazafizin.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/cbb50851395f7838fc2855cf90359d94/66845013547.pdfIn PDF document text
- http://ccspatti.org/userfiles/file/80015863206.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/161c9ac05264b8---ridilumenilu.pdfIn PDF document text
- https://jmtours.co/aym_image/files/84823559301.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1621573a8412f4---rulajufaberav.pdfIn PDF document text
- https://horkolas-gatlas.hu/ufiles/file/56656559133.pdfIn PDF document text
- http://alpanelektrik.com/depo/sayfaresim/file/859280602.pdfIn PDF document text
- http://be-now.pl/userfiles/file/gunakanudewori.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/7da67629dd39ab161e069a7bfb1c128e/bukenudujazafugetetukoj.pdfIn PDF document text
- https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/80551818051.pdfIn PDF document text
- http://italy-ex.com/images/blog/file/penimikusigigitumimobez.pdfIn PDF document text
- https://coaching-jk-academic.com/ckfinder/userfiles/files/werorilogezewuvabarefo.pdfIn PDF document text
- http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/vodivefebinut.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/e5dfdfa775440559db8f4aeeb2d17787/jojixitetemigovukozeg.pdfIn PDF document text
- https://rozetki.moscow/kcfinder/upload/files/lagafasewawejepavojavopi.pdfIn PDF document text
- http://apexnepaltravel.com/userfiles/file/legavibagofesito.pdfIn PDF document text
- http://enewind.com/pliki/file/4070952344.pdfIn PDF document text
- http://www.afmc.edu.bd/public/files/assets/ckeditor/kcfinder/upload/files/43262221820.pdfIn PDF document text
- http://motolargo.pl/userfiles/file/vusitovomubegisigubutav.pdfIn PDF document text
- http://simkoongschool.com/uploads/editer/files/68101684126.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0002ec99.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EC99	10952 bytes
SHA-256: `701c70e2e96afc2adffec7f80f0adc18ddd0efac81fdd670efd4609bb9bc5a3e`
`font_01_sfnt_off00030618.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30618	16560 bytes
SHA-256: `924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9`
`font_02_sfnt_off00031d33.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31D33	17740 bytes
SHA-256: `7315767241f922aedad32b632cbba461464d9aa3f4de783c28358744174a562d`

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