MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by a ClamAV signature and an ML classifier, indicating a phishing or trojan threat. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, characteristic of a link farm designed to redirect users to malicious content. The PDF structure itself appears to be a lure, with the document body being unreadable binary data, suggesting the primary function is to host these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://abandassociates.com/ckfinder/userfiles/files/xufunivo.pdf In PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614334a4f0126---88684996275.pdfIn PDF document text
- http://jikaramen.com/uploads/files/94188284587.pdfIn PDF document text
- http://rurisnet.org/images/file/xawajobijilobogufenek.pdfIn PDF document text
- https://monyetjoget.com/contents/files/93496789484.pdfIn PDF document text
- http://xn--q20b13r9leepaeb.net/upload/file/202109060614333994.pdfIn PDF document text
- http://studioingegneramato.com/userfiles/files/nateparagisikewozuxi.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a7e9d124c5---wugawuw.pdfIn PDF document text
- https://pratham.one/file/83141275437.pdfIn PDF document text
- http://aliceinformaticasrl.com/user/pages/88483766903.pdfIn PDF document text
- https://rcvizovice.cz/ckfinder/userfiles/files/pasenexuwazora.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/4e5a8e2f37f2977ad0ff910c0328c5bc/buvevof.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/4pd0ut1bpofipvlk5d64thtaar/nuregewimagavamevoroti.pdfIn PDF document text
- http://aotwresort.net/ckfinder/userfiles/files/96194399769.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/muxusor.pdfIn PDF document text
- http://pcserviszlin.cz/ckfinder/userfiles/files/bedugagos.pdfIn PDF document text
- http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kisoko.pdfIn PDF document text
- http://galsabino.it/userfiles/files/86860333592.pdfIn PDF document text
- http://consulcongress.it/uploads/assets/file/mafejadusujug.pdfIn PDF document text
- http://packturf.fr/files/94004368057.pdfIn PDF document text
- https://shturnev.com/files/foFKED/file/44699168445.pdfIn PDF document text
- http://planet-for-events.de/userfiles/file/dodivojusupa.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=watch+mulan+2020+freePDF 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_off0000dacc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDACC | 19084 bytes |
SHA-256: c91e9c3be431bcc31c7f30cb3821030bfd702beb3380b059dfe6758f986532b4 |
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font_01_sfnt_off00010cf8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CF8 | 10556 bytes |
SHA-256: b127f1c6c7c838ee5d879f5af246a524b20f8288d88fd7f0889f6ee2d29eb2e7 |
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font_02_sfnt_off000124f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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