MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to external sites, many of which are hosted on compromised or disposable domains. The presence of 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics strongly suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://cateringkieuan.com/uploads/userfiles/file/41734215446.pdf In PDF document text
- https://wolfgang-photography.com/userfiles/files/62217468268.pdfIn PDF document text
- https://sinarwaja.com/account/files/98999498796.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5fa0c91a5---53251714822.pdfIn PDF document text
- http://mjacz.cz/soubory/files/zaditiweto.pdfIn PDF document text
- http://aptekarynek.pl/zdjecia/fck/file/rovezoravoziwujuxe.pdfIn PDF document text
- https://poganyvolgyi.hu/userfiles/file/bibugamaxowidazopewobemo.pdfIn PDF document text
- https://horacebatten.com/ckfinder/userfiles/files/zusofiwovobowunelitu.pdfIn PDF document text
- https://www.tahitotfalu.hu/ckfinder/userfiles/files/jezalafim.pdfIn PDF document text
- http://lixupeng.com/uploads/files/xiwaxasavuguxetuxepuw.pdfIn PDF document text
- http://tentimesneedlehill.com/UPFILE/userfiles/files/23306573920.pdfIn PDF document text
- http://pizzeria-millemiglia.de/app/webroot/img/editor/file/digojidemelilapov.pdfIn PDF document text
- https://tramtron.vn/uploads/files/files/gogumixupemomuvivikavotep.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/861f8963d524c6c50dc23664b5c4e8da/gujefu.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c073cb0326---93065919947.pdfIn PDF document text
- http://ingegneriarossi.it/userfiles/files/7068502793.pdfIn PDF document text
- http://www.biosafety.biz/ckfinder/userfiles/files/bafikorififad.pdfIn PDF document text
- https://aaaxxion.info/images/file/39730527816.pdfIn PDF document text
- https://dailyhondaotomientay.com/upload/files/benarizenefumikobawerun.pdfIn PDF document text
- https://weldingportal.it/userfiles/file/ludesizogemeg.pdfIn PDF document text
- http://hnsunnyfood.com/d/files/55547061140.pdfIn PDF document text
- http://rymwid-training.com/userfiles/file/54021903917.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=wolf+of+wall+street+uncut+full+movie+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_off0000b03d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB03D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c854.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC854 | 10744 bytes |
SHA-256: 8fe0fcc54dd05c6d936492ac5cce999d48f92135d04336cb490c16d1a1751b1d |
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font_02_sfnt_off0000e117.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE117 | 14556 bytes |
SHA-256: 59958ab54fcbc38fc4aa3ee2d1b0819b0b4f40fd947547676caf2ef1a84617c0 |
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