MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised websites hosted on potentially disposable infrastructure. The embedded URLs suggest a phishing or malware distribution scheme, leveraging SEO tactics to appear legitimate.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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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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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://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/k8ddmi905vpn1tkgcvbjna20bf/71751080726.pdf In PDF document text
- http://botosani.ro/img/uploads/file/jarovuxiruzabo.pdfIn PDF document text
- http://petraifevronii.ru/ckfinder/userfiles/files/xuwuwaruvizanibiv.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609b2f04c6e4c---4805290052.pdfIn PDF document text
- http://inventory-acepipe.com/images/uploads/files/56684144500.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c188b518947---65233381684.pdfIn PDF document text
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607855447ba68---12866090336.pdfIn PDF document text
- https://istocdukkan.com/userfiles/files/zubufukisivifer.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c58a69812a4---32362493629.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160825d58c0a1e---pivube.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/58836078756.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/du9dn43fa6auimpsct8m4jref2/jajigalepeninezageso.pdfIn PDF document text
- http://www.biotanika.pl/upload/file/31393086116.pdfIn PDF document text
- https://aulacvn.com/upload/fck/file/bategemozuron.pdfIn PDF document text
- https://guapa2.com/admin/fck/file/49446157359.pdfIn PDF document text
- http://carrozzeriabosini.net/userfiles/files/95589762267.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=how+to+transfer+data+from+iphone+to+hard+diskPDF link annotation
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/9c2cc8d203a0bb6453cc7a386286f205/394256667.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_off0000e693.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE693 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000feaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEAA | 10888 bytes |
SHA-256: 392d4a624291900f75fd410949971ea4ad023e58162f2276f2f9fb6cebe4efe1 |
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font_02_sfnt_off000117a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117A7 | 17388 bytes |
SHA-256: 8a2fb32067da1715b8433ee878178b05f49c34d64a2da1cc69fab2c8f94921a4 |
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