MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous external URIs pointing to various domains, including compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The presence of PDF-specific heuristics like PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM indicates the document's primary function is to redirect users to these external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://inwebjor.ru/uplcv?utm_term=skills+and+competencies PDF link annotation
- http://sun-tes.ru/files/file/92511406658.pdfIn PDF document text
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/7461503cc508a25a82b0269a1eaee9e0/49991430554.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a8fa362f074---rutonomutox.pdfIn PDF document text
- http://khaskhaan.mn/uploads/userfiles/files/zagemawajevizimitago.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e2af9738f90---9843888557.pdfIn PDF document text
- http://geteffective.biz/uploadfiles/file/nuvesubovulabiter.pdfIn PDF document text
- http://szermgrt.hu/uploads/ckfinder/userfiles/files/manofogogimukebipezof.pdfIn PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/juborekisuvizezozotu.pdfIn PDF document text
- https://classconnbio.com/img-jacson/files/diwepenewana.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e08bc1bc3e4---pomomixerevabafewikezerun.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/316928cfd4a4f5b0f0a616d3c1b1160c/67613764118.pdfIn PDF document text
- https://bilalyapidekorasyon.com/userfiles/file/72234327755.pdfIn PDF document text
- http://157.230.241.115/image/upload/File/16528301024.pdfPDF link annotation
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16079e45484f1d---wujeturokinon.pdfIn PDF document text
- http://ruoumoc.com/upload/files/muvewo.pdfIn PDF document text
- https://basisnomor.com/contents//files/nuxewopozazugeretozuxavo.pdfIn PDF document text
- http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a80f8938f3f---60031514842.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c064137a77---jidejaniv.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c40de0c82be---91431254974.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aeb5433554---41904081766.pdfIn PDF document text
- http://smflow.in/admin/uploads/file/divovusafapaloxase.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/4067d369d159dff741d64265e710d0f3/22722085268.pdfIn PDF document text
- http://togetherwewalkny.org/clients/2/24/2411cc079aa0f0d7fd57f81c6163ecfd/File/92636589822.pdfIn PDF document text
- http://bensonlandscape.com/editorData/file/rasoxakires.pdfIn PDF document text
- https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/6p9a90huiocgthpdmuk8jas0hl/33528816695.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1607e93ec8fbb8---49042055588.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fc57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC57 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001146e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1146E | 10744 bytes |
SHA-256: 9a3983bb56e1ab03d0f3615b31f37d582fd9e0dc3312ffd64ec2705530ef43d1 |
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font_02_sfnt_off00012d10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D10 | 18224 bytes |
SHA-256: 4483e9fb7d26f23befe1b0a9f47d73a1d26ec383c671c9425f7a68cb4398c969 |
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