MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The ML classifier and ClamAV both strongly indicate maliciousness, with ClamAV identifying it as Pdf.Phishing.Trojan. The heuristics reveal the PDF contains a link farm pointing to compromised WordPress upload storage, suggesting a phishing or malware distribution attempt. The embedded URLs are likely part of this lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/2c6fbb6cbe412508e8299f7bb46ccbc6/68846105925.pdf In PDF document text
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/09ed07c25740cfc175904bad25998d0d/51172112537.pdfIn PDF document text
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d6a42a2ad---23267535782.pdfIn PDF document text
- https://ilcaminodaugo.it/file/jalobokafuvofom.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609cbd5091b0b---5323286411.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/mirodanasuliz.pdfIn PDF document text
- http://alfonsoguiggiarchitetto.it/userfiles/files/dodeboj.pdfIn PDF document text
- https://www.privathospitaletkollund.com/ckfinder/userfiles/files/24052369301.pdfIn PDF document text
- http://czytamzezrozumieniem.pl/userfiles/file/96715875963.pdfIn PDF document text
- https://cuisinescartier.ca/upload/editor/file/46525726932.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160e088ef2485b---mederuvopewaza.pdfIn PDF document text
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/8ffec8e21cc3c3c7a519f575aba86c80/mubanitabaduponabe.pdfIn PDF document text
- http://vaness-sens.fr/ckfinder/userfiles/files/66455287686.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608fdb053b6f9---80854005755.pdfIn PDF document text
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/0dfec99e7ae4e1c96f199fbe68562680/25557096257.pdfIn PDF document text
- https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/6df56b8ebab6dd8577cc4751b0e921ab/liritanabitazibopofipez.pdfIn PDF document text
- http://uzmansporzeminkaplama.com/resimler/files/jegowuzunesavosunupomodet.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/roljf2h8ik5pmkdckl24rdtepi/17444458713.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/370670063d4255bcfe9f50b1e2402b30/nosexemilugajepevimanije.pdfIn PDF document text
- http://pivotal-technologies.com/userfiles/file/divugipumefa.pdfIn PDF document text
- http://smn68.com/clients/75339/File/88893804614.pdfIn PDF document text
- https://nmg.lv/img/uploads/files/83361481296.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a625e1ceeb---54830015377.pdfIn PDF document text
- https://t2sc.me/userfiles/mozetibub.pdfIn PDF document text
- https://artlabjo.com/userfiles/file/91715375952.pdfIn PDF document text
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d795e4443c---wesulegofitewokokopidol.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=use+approximation+in+a+sentencePDF link annotation
- 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_off0000f124.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF124 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001093b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1093B | 10596 bytes |
SHA-256: 0a786c4a5095abdff7c50e03bcce169a3dbfd40958ba78eb4b6fc978dbb2155e |
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font_02_sfnt_off00012179.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12179 | 15740 bytes |
SHA-256: 026ae5b95ea09ebde98047005d6bfd2fc9f192d4e6439ab76f74c8e149ca3827 |
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