MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to external websites, some of which are hosted on compromised CMS platforms, suggesting it's part of a link farm designed to host malicious content. The 'SE_CALLBACK_LURE' heuristic indicates the document's content is designed to trick users into calling a phone number, a common tactic in phishing and tech-support scams. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely involving the exploitation of PDF vulnerabilities to deliver a payload or redirect the user.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/82a198a8285bad336a18a2d6d5f12d8f/79283797091.pdf In PDF document text
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089a78ceba05---xuxovugiworedetajosuro.pdfIn PDF document text
- http://tecumseh1962.com/clients/85183/File/16863111779.pdfIn PDF document text
- https://jdlpartnerss.com/userfiles/file/maborozelemesexudome.pdfIn PDF document text
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160879debbbbe7---73562253276.pdfIn PDF document text
- http://go-pxl.com/uploads/files/polen.pdfIn PDF document text
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/rfoibjd77vokbcae1l0i7l8eln/sunitixopufalofi.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5caa64004---gexigesab.pdfIn PDF document text
- http://paynechapelduquesne.org/clients/9/9b/9b910c66cef3ae2d1bb1fd5804160a19/File/fesebawiwa.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a725a71d929---53161452418.pdfIn PDF document text
- http://modnyi-buket.ru/uploads/files/44616344311.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609165cc61d68---kekanapof.pdfIn PDF document text
- https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/c592df8bd53b72806cee7d79ea963237/10003293452.pdfIn PDF document text
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/disafojagekavu.pdfIn PDF document text
- https://patidarpalanpur.com/web/k/main_admin/ckfinder/userfiles/files/27089553216.pdfIn PDF document text
- http://ebslang.net/_UploadFile/Images/file/94558163532.pdfIn PDF document text
- http://salondebellezaanamariaromero.es//ckfinder/userfiles/files/lasamuxejaruwo.pdfIn PDF document text
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba3f032145d---zifumifem.pdfIn PDF document text
- http://fatamorgana.fr/uploads/assets/file/valikisomakakasuzutesof.pdfIn PDF document text
- http://hodinovysoused.cz/upload/file/muzimewonizip.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160bacafecf311---62405904707.pdfIn PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/72152bd6891d937d61e85f0b22efd543/pewujubelur.pdfIn PDF document text
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/4d7190f030d8185162d72606582d211f/zazos.pdfIn PDF document text
- http://asesorgubernamental.com/images/file/17116934442.pdfIn PDF document text
- https://mariellatriolo.it/public/file/folizajuba.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc3afe7d9f3---85975299045.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=best+phone+numbers+to+prank+call+ukPDF 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_off0000e28e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE28E | 10932 bytes |
SHA-256: 94e0ccdafc526bf6608c36cd2ea6804d3c33709a71de9afe69b22f6bd73a6a94 |
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font_01_sfnt_off0000fb8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB8C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001139e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1139E | 17040 bytes |
SHA-256: 2fcdc27726a4e659e0f5577e967de65a0d7519c43129db8fd57ed69e802f7d02 |
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