MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that point to compromised CMS uploads and disposable hosting, suggesting a phishing or spam campaign. The presence of a link farm and the use of SEO-related terms in URLs further support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://garglob.ru/uplcv?utm_term=once+upon+a+time+only+you+song
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/n78s5hh8jkthu0n6qgdg0g8hsf/jurugirusogexefuj.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a0c553729c---31237770837.pdf
- http://savitapiti.org/ckfinder/userfiles/files/28690841546.pdf
- http://benardoutlite.com/admin/fckeditor/fckdata/file/26282980409.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/5ab544378f7c933da2c8a7478e257c2e/45888716472.pdf
- https://tedvandergulik.nl/userimages/file/mebudopikosekizaga.pdf
- https://clumba-indoor.ru/files/files/vunam.pdf
- http://xn--939a66v0zjo3bcvdmrp.com/data/ckfinder/files/63233502074.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c0c63a394be---fedewerumodubari.pdf
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/qdkn9pueu2v05cqi1nsqa4ilr0/2452538307.pdf
- https://nestaerospace.com/uploads/file/doregasileresukepegigali.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ab65c5c29a4---viledumu.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608d8334f0e81---88344337595.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160988758bb593---lagitepobolog.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/696a77fc158c71d789b1715408f2d591/zugaritakexikudutemogo.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/27477368ae300c1b8d7328800009a4bb/tuziz.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/07266f041a83f80b772b727cc639ac6b/98081666177.pdf
- https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/6b23e05e6cfa2662b7eed7eeeb3e23ab/tuwaxabokoguromex.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/e353013adb9ea230854cf643bd985607/43579289363.pdf
- https://lapalettedesarts.fr/gestion/file/35750326584.pdf
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607775435c76c---nusevevalakukiru.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160702d84ad60a---molowarixidokowanovubezok.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/2q3sb8id2jiklnkehnlki70fkn/xamadiziviposofiwup.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c612.bin908765aff248dfd3993f210d4bc5be853629c21e948a37b9406cd1911ea386e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC612 | 10856 bytes |
font_01_sfnt_off0000df39.bin0c831aaa23b495f992f9bd8e133dac13fee47daa361cefd72a0c36069c206858 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF39 | 15960 bytes |
font_02_sfnt_off0001086a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1086A | 16792 bytes |
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