MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress upload directories, indicating a link farm designed to host malicious content. ClamAV detection and ML classification strongly suggest malicious intent. The embedded URLs and the heuristic findings of a 'link farm on disposable hosting' point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a102f65b04---rironolifuwivurereguk.pdf In PDF document text
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c174f7dc649---vusoxelit.pdfIn PDF document text
- http://stasta.com/userfiles/file/bivad.pdfIn PDF document text
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/nruq3lo6rl1miejh6btueu5mc4/xabuxuroxi.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e88157cd6---kadizokikixogapu.pdfIn PDF document text
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/452ac5ff4b55445276361fb37621176e/55744094634.pdfIn PDF document text
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/72l8o450lvs3qomu01mgi0rsk7/71479533692.pdfIn PDF document text
- http://hurtmar.pl/Upload/file/terujeta.pdfIn PDF document text
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/3f2d86031f784eea80778210d01b76e2/rarejida.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/g6rebsc474ppi16rd4lommrmb4/sojolirifobulekusof.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a6bae9bb8c---2535205147.pdfIn PDF document text
- http://fluidearthconcrete.com/userfiles/file/2186364535.pdfIn PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/se6867khap32bfqcfdnv85siqs/52321315275.pdfIn PDF document text
- http://diclenakliyat.com/userfiles/file/wutagowasiv.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/wipidagararopuvixaxagad.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a4fc67d01f5---borapidolaxapusulogibiw.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/1a1d5b4a1e907b326767a6b2466fa79e/82065097455.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=mr+cooper+showPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e984.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE984 | 4876 bytes |
SHA-256: ac58a7c17ae3270b8152a9234db76b827782034f01382c1bf8988e3b34c1b487 |
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font_01_sfnt_off0000fa37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA37 | 11084 bytes |
SHA-256: 315ba27a65d557fbd59bd5c0bbe1207d4cc87eb88333c27683b9eab5120b7c6d |
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