PDF malware analysis — malicious · 4459bd8039b7692a

MALICIOUS

PDF

384.1 KB Created: 2022-01-20 19:32:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10

MD5: c2a9f75846ed6d37854a1a96c9e778ce SHA-1: 44b12fdc4ba334576c908c1ffd391ea35717d4e0 SHA-256: 4459bd8039b7692a09887ca2cd08c3697a64c70d2765596b80d9fe7f5d20f018

166 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.5194

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://catamma.ru/uplcv?utm_term=centrales+eolicas+pdf PDF link annotation
- https://www.acta-mobilier.fr/ckfinder/userfiles/files/motusukipok.pdfIn PDF document text
- http://eperon-kochersberg.com/img_db/49962329585.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161bbf5e6030b2---82356169223.pdfIn PDF document text
- https://maximaainfoways.com/WebExams/ckfinder/userfiles/images/files/61227386772.pdfIn PDF document text
- http://goldartline.ua/userfiles/file/99054733036.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/161910d4528b4a---forega.pdfIn PDF document text
- http://nhasachnguyenvancu.com/Images_upload/files/46318527826.pdfIn PDF document text
- http://terredellamagnagrecia.com/userfiles/files/98967536601.pdfIn PDF document text
- https://www.globalportsholding.co.uk/ckeditor/kcfinder/upload/files/75305685462.pdfIn PDF document text
- https://eurouniversal.eu/ckfinder/userfiles/files/14099830587.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1614f627273d21---jipukunaza.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/c9caddb92223d0e94906a1be3b269220/773112739.pdfIn PDF document text
- http://palyavalaszto.hu/teszt/upload/file/65160108533.pdfIn PDF document text
- https://salvamontbihor.ro/app/webroot/files/userfiles/files/33422401932.pdfIn PDF document text
- https://pataniforum.com/admin/jquery/ckfinder/userfiles/files/85808345726.pdfIn PDF document text
- http://osteriailgalloelinnamorata.com/userfiles/files/99668637986.pdfIn PDF document text
- http://www.neoneofitou.com/ckfinder/userfiles/files/pipewexekap.pdfIn PDF document text
- https://www.utn.ac.cr/sites/default/files/files/konobevugupegori.pdfIn PDF document text
- http://upservice.expert/admin/ckfinder/userfiles/files/porafop.pdfIn PDF document text
- https://atavio.ru/files/file/38325692381.pdfIn PDF document text
- http://microcement.ua/userfiles/file/zanudaxabawisi.pdfIn PDF document text
- https://pinpointfeedtech.com/ckfinder/userfiles/files/79438796732.pdfIn PDF document text
- https://garankuccu.com/upload/fckimagesfile/01b426857fe6be5c2e1562c493eafe98.pdfIn PDF document text
- https://hadimehdi.org/userFiles/files/27307409076.pdfIn PDF document text
- http://culvercity.ilovepokebar.com/uploads/files/79341649304.pdfIn PDF document text
- https://atasuorganiktarim.com/upload/ckfinder/files/47567280578.pdfIn PDF document text
- http://dawahcity.com/userfiles/file/fatudawotiwokapugokiv.pdfIn PDF document text
- http://www.uc-kushiro.net/images/library/File/46589665503.pdfIn PDF document text
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613cba6893fb8---vadegedekazekotamuw.pdfIn PDF document text
- http://nirmalapublicschoolerumely.com/userfiles/file/ralagesa.pdfIn PDF document text
- http://toflight.mobi/attachment/ckeditor/files/9205aff6c6d825e0a91f28af7de6dd40.pdfIn PDF document text
- https://tyko.pl/userfiles/file/54054042009.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/bolafu.pdfIn PDF document text
- https://jager-ig.tw/up_photo/file/zagovumo.pdfIn PDF document text
- http://kpglearningbox.com/assets/kcfinder/upload/files/1946147035.pdfIn PDF document text
- http://artemon.nl/userfiles/file/guwepave.pdfIn PDF document text
- http://kvbm.org/pds/userfiles/files/86355500263.pdfIn PDF document text
- http://3m18.com/images/editor/files/16763263850.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1619c8e5b7e283---14929683842.pdfIn PDF document text
- http://peaceinsrilanka.lk/userfiles/file/17753624926.pdfIn PDF document text
- http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/97269915955.pdfIn PDF document text
- http://super-rc.co.jp/admin/kcfinder/upload/files/76550826177.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
+1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00058adc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x58ADC	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`
`font_01_sfnt_off0005a17b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A17B	20416 bytes
SHA-256: `77711d5a273c3f035289b5de557099bf0c135c12111b8a75456d05133b909550`
`font_02_sfnt_off0005d63b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D63B	10644 bytes
SHA-256: `d4d245f1efc64de6b197a6a909ffc69cfafdbac9a122aa93dfcba6b83f239aed`

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