MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicative of a link farm designed to lure users to malicious content. The heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' specifically highlights links hosted on compromised WordPress installations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://vegan-eshop.cz/data/file/palulopub.pdf In PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144a9ea42a22---sijubadovixif.pdfIn PDF document text
- http://h-p-n.fr/catalogue_dynamique/file/16636872933.pdfIn PDF document text
- https://xn--90ah6akb9e.xn--p1ai/f/file/dujijirabokerikow.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fbf9f368d6---tazilerenitedewubikanax.pdfIn PDF document text
- http://weddingdove.tw/uploads/files/202109131457413139.pdfIn PDF document text
- http://easternhoteljeju.com/FileData/ckfinder/files/20210912_6FEA1FD364C815F4.pdfIn PDF document text
- http://saothienemb.com/uploads/images/files/7931008460.pdfIn PDF document text
- http://i-p-p-c.com/ckfinder/userfiles/files/20530389937.pdfIn PDF document text
- https://rlmahtani.com/userfiles/files/reporewopuwuzuwobizudawug.pdfIn PDF document text
- http://artstudiodesign.it/userfiles/files/10306818110.pdfIn PDF document text
- http://winfielddeli.com/ckfinder/userfiles/files/73504664901.pdfIn PDF document text
- http://ei-windykacja.pl/upload/file/52123175866.pdfIn PDF document text
- https://krusomying.com/data/file/nebige.pdfIn PDF document text
- http://stisk.com/file/vuboxu.pdfIn PDF document text
- https://thehouseproduction.net/file/6465609002.pdfIn PDF document text
- http://miass.realxenon.ru/uploads/files/93074452659.pdfIn PDF document text
- https://semot.com/Store/userfiles/file/revobusivonutelomat.pdfIn PDF document text
- http://rainternacional.com/userfiles/file/sofipufev.pdfIn PDF document text
- http://adriennemason.com/assets/files/sezaw.pdfIn PDF document text
- http://soeurs-scjboran.fr/soeurs/upload/files/40477838010.pdfIn PDF document text
- https://detector-billetes.com/Imagenes/file/noxop.pdfIn PDF document text
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c1b03944f3---pojif.pdfIn PDF document text
- https://karlholmbygg.se/UserFiles/files/91988986539.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=subway+surfers+low+mb+gamePDF 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_off0000bbe0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBE0 | 16776 bytes |
SHA-256: c96824025117514255b63e61d6089dc77c8ceff2a1d84945238939b548032e02 |
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font_01_sfnt_off0000e720.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE720 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ff37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF37 | 10780 bytes |
SHA-256: 77825d11f37a72a05f961125f61e4273365a60dd9a2d76a7b4a9e84a20927e36 |
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