MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple disposable domains and compromised WordPress upload storage, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely intended to trick users into downloading further payloads or submitting credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://ketchas.ru/uplcv?utm_term=hot+springs+you+can+swim+in+near+me PDF link annotation
- http://njxinbell.com/upload/files/fasakibepobiratogevojoj.pdfIn PDF document text
- http://workontext.ru/media/file/59959135559.pdfIn PDF document text
- http://czechdidgeridoo.com/admin/upload/file/65042862450.pdfIn PDF document text
- https://activsport.ro/userfiles/file/6869610355.pdfIn PDF document text
- http://sochi-riba.ru/ckfinder/userfiles/files/21884391324.pdfIn PDF document text
- https://myclubowners.com/userfiles/files/notoponefiv.pdfIn PDF document text
- http://ozdesignhouse.com/app/webroot/uploads/files/33793100062.pdfIn PDF document text
- http://artwatch.ru/userfiles/file/reposukapari.pdfIn PDF document text
- https://aporpeter.ro/userfiles/file/84030758136.pdfIn PDF document text
- https://alshamiltrading.com/alshamilfiles/file/19653859684.pdfIn PDF document text
- http://broadviewlibrary.org/uploaded_bvlib/file/44843584730.pdfIn PDF document text
- https://curewelldiabetes.com/userfiles/file/wogotiwa.pdfIn PDF document text
- http://school15-tyumen.ru/f/mexososubatufafisidola.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132aaf057b51---52137956496.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/nai7fpgjr8e3bgirgqiafh7avm/26284751520.pdfIn PDF document text
- http://everintelconsulting.com/upload/file/202110061136531912.pdfIn PDF document text
- http://kjphotocon.org/data/userfiles/files/pigazubemejenonuzotapajuk.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138e29cc4f63---59590379616.pdfIn PDF document text
- https://lyna-garage.com/htdocs/cljr/data/files/winulotokuxevigak.pdfIn PDF document text
- http://pensjonatagat.pl/userfiles/file/75142907315.pdfIn PDF document text
- http://chikatere.com/Upload/files/xedajananukasifup.pdfIn PDF document text
- https://villadelauca.com/userfiles/file/45105417619.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_off0000bf29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF29 | 17132 bytes |
SHA-256: 1681c1c70dd633bca8ddcfd5b4e861da7bb8d57fae2d603912d72debfcd4b8a8 |
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font_01_sfnt_off0000eb36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB36 | 10964 bytes |
SHA-256: 1abe18be667f2fa761d97dd7114b038286273ad46291ceca6697d704f6c9947e |
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font_02_sfnt_off000104bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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