MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, a common technique for executing malicious code within PDFs. It also features a link farm pointing to compromised WordPress upload storage and disposable hosting, indicating an attempt to redirect users to malicious sites. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/a64bf59cf1b2c6fcae28de683df26852/pabisojuxo.pdf In PDF document text
- https://vasutaszeneiskola.hu/ckfinder/userfiles/files/13368968278.pdfIn PDF document text
- https://thefertilizerequipment.com/d/files/kafawuf.pdfIn PDF document text
- https://citronixdeflection.com/nbloom/fckuploads/file/dirozewef.pdfIn PDF document text
- https://anjingliar2.com/contents/files/raminerojolamolejanuz.pdfIn PDF document text
- https://linlinline.biz/js/ckfinder/userfiles/files/gokonela.pdfIn PDF document text
- http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/fijufeterepu.pdfIn PDF document text
- http://www.farmaciapenil.es/userfiles/files/kebimavuwiboxo.pdfIn PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1615cdabd0122d---xotetixagofupipiwokume.pdfIn PDF document text
- http://mabo-meccanica.eu/userfiles/files/rapivudirorumam.pdfIn PDF document text
- http://paneldeconso.com/userfiles/file/pifebeterufuxesad.pdfIn PDF document text
- https://ijpdua.com/contents/files/75725870151.pdfIn PDF document text
- http://akbarestate.com/survey/userfiles/files/kusowuvefanuzipipi.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16161ba4e8a0a0---9730388024.pdfIn PDF document text
- http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/sulodetusugok.pdfIn PDF document text
- https://nedimgame.com/calisma2/files/uploads/kipotokinez.pdfIn PDF document text
- https://www.rosebankprimary.co.za/inc/ckfinder/userfiles/files/sarixob.pdfIn PDF document text
- http://akpanlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/buwavobeborijago.pdfIn PDF document text
- http://kechengchem.com/upload/files/38751973624.pdfIn PDF document text
- http://veterina-hrib.cz/user-uploads/files/rowafanijefox.pdfIn PDF document text
- http://teusz.pl/UserFiles/file/57764530290.pdfIn PDF document text
- http://zatuchlina.cz/upload/file/mikanixakipasupire.pdfIn PDF document text
- http://qataminational.com/uploaded_files/userfiles/files/ruligigif.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/xPAns0MRe5M/uplcv?utm_term=welsh+cocker+spaniel+puppies+for+salePDF 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_off0001132f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1132F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012b46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B46 | 10664 bytes |
SHA-256: ff34ece2b46db0b30b4fb50528ea80b4c09384e5a8a978f5ebe00fa7442163af |
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font_02_sfnt_off000143a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143A3 | 19012 bytes |
SHA-256: 9bd0ce9344a3174763ca825905a82095eeaecce0600345fddf68e3a1cae9d085 |
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