PDF malware analysis — malicious · 4e3073c0360df2bb

MALICIOUS

PDF

459.5 KB Created: 2022-02-12 14:54:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: ca629604e9e47a0776eb5ef9461ee06e SHA-1: e34244d609b412717a61d2f3b17ada2cf2f72d56 SHA-256: 4e3073c0360df2bb9b8ec5fe7c14fca300bb10d58b22fcdfdfa53aaea7b6673a

144 Risk Score

Machine Learning

Nyx PDF Classifier suspicious score 0.3546

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://mifuj.co.za/XSRYdR1H?utm_term=libros+para+aprender+ingles+basico+pdf+gratis PDF link annotation
- http://areaengineeringsrl.eu/userfiles/files/zukute.pdfIn PDF document text
- http://ng-sons.com/userfiles/file/wakotagugisexelukuvam.pdfIn PDF document text
- https://rippa.pt/files/file/ritesenunan.pdfIn PDF document text
- http://heryeryesil.com/resimlerfiles/xasutelafo.pdfIn PDF document text
- http://lauffer.com.br/app/webroot/js/kcfinder/upload/files/munex.pdfIn PDF document text
- http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/votigelerupojutur.pdfIn PDF document text
- http://wang023spa.com/userfiles/202112file/2021120609260970554.pdfIn PDF document text
- http://printific.com/images/contentimages/files/33631523697.pdfIn PDF document text
- http://evohome.pl/userfiles/file/9574091210.pdfIn PDF document text
- https://prana.video/wp-content/plugins/super-forms/uploads/php/files/h1iekuta22r84rgdd2e35r9vlj/45839189271.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/17fb5ddc630b1351d0e1d0140b067765/wusamamutezumu.pdfIn PDF document text
- https://xn--lenachatka-57b.pl/uploaded/file/xivalu.pdfIn PDF document text
- http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/2997798340.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620390733ccff---6438121883.pdfIn PDF document text
- https://aquatrustfina.com/userfiles/file/1025816415.pdfIn PDF document text
- http://dentalweek.eu/userfiles/files/41040465065.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/eb9e3013c9d253305b11960e95a696ab/zawufeko.pdfIn PDF document text
- https://pt-olympus.com/contents/files/10714448557.pdfIn PDF document text
- http://eko-uklid.com/files/file/51667152841.pdfIn PDF document text
- http://www.crislbd.com/public/admin/assets/ckeditor/kcfinder/upload/files/88097578074.pdfIn PDF document text
- https://chrmglobal.com/userfiles/file/8035690169.pdfIn PDF document text
- http://autowassenindex.nl/images/uploads/88706419302.pdfIn PDF document text
- http://yossy.biz/userfiles/file/9577581263.pdfIn PDF document text
- http://bienbao.org/uploads/files/raravulixuxiku.pdfIn PDF document text
- http://togetherwewalkny.org/clients/2/24/2411cc079aa0f0d7fd57f81c6163ecfd/File/29675491246.pdfIn PDF document text
- https://nutritie-metabolism-sanatate.ro/app/webroot/files/userfiles/files/sawumuwadujur.pdfIn PDF document text
- https://behbehaniprojects.com/uploads/files/takumuvutebesofotupate.pdfIn PDF document text
- https://locktactyuma.com/userfiles/file/32596110701.pdfIn PDF document text
- http://xn--90ae5b.xn--p1ai/uld/files/gatilev.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d7efcf90edf---gixap.pdfIn PDF document text
- https://hotlinepro.in/admin/userfiles/file/fupogojatuzisosemawis.pdfIn PDF document text
- https://investin-khj.ir/ckfinder/userfiles/files/88504726004.pdfIn PDF document text
- https://rosenstein.lu/userfiles/files/geluw.pdfIn PDF document text
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/j9d28v5uorqugmm9hm0mp65mg0/5038940103.pdfIn PDF document text
- https://exam11.menapoint.com/app/webroot/upload/files/welobuzawu.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_off0006a349.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A349	19956 bytes
SHA-256: `e7b9906052da7865034eb80af6df9eec223c7f6fc39f245dae2ec56d3e1c7de3`
`font_01_sfnt_off0006d70b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D70B	16560 bytes
SHA-256: `924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9`
`font_02_sfnt_off0006ee2c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6EE2C	10892 bytes
SHA-256: `b4f525f4e4d4f35b4811d62d1accbed441209e1a4e7388d43ebe7ff4b12fae9a`
`font_03_sfnt_off00070711.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70711	16232 bytes
SHA-256: `e06ebeaa2bb94d9bf14337b0794fec2c9c4a66e30291689b6f6234bfe360c8a5`

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