MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm, a common tactic for phishing or distributing further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 5
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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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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://catamma.ru/uplcv?utm_term=friend+request+2020+watch+online+free PDF link annotation
- https://kujainspectors.com/candyticket/uploads/page_images/files/zuketisebisad.pdfIn PDF document text
- https://natinsel.com/imagenes/file/wapusisurosod.pdfIn PDF document text
- https://purefeeling8.com/data/file/ditemiririkituxevexajow.pdfIn PDF document text
- https://digireg.li/upload/25695492116.pdfIn PDF document text
- http://birizgardenhotel.com/userfiles/file/pazozukuxuporasirubifudo.pdfIn PDF document text
- https://sdhouse.info/ckfinder/userfiles/files/5690292620.pdfIn PDF document text
- https://qian-ho.com/upfiles/editor/files/gakugavaguzitizus.pdfIn PDF document text
- http://istanbulballoons.com/ckfinder/userfiles/files/71584061472.pdfIn PDF document text
- http://35ct1.com/images/ckImageFiles/files/46922904793.pdfIn PDF document text
- https://aljazeerahdrilling.com/userfiles/files/51728449855.pdfIn PDF document text
- https://xyoaa.org/sites/default/files/files/xivabemuw.pdfIn PDF document text
- http://chnli.tw/CKEdit/upload/files/woneweminotexetuwawezoda.pdfIn PDF document text
- http://paulgraphics.paulsfashion.in/files/vizowatuj.pdfIn PDF document text
- http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/putiteru.pdfIn PDF document text
- http://www.mezmat.ru/ckfinder/userfiles/files/zigilozakurezulirabek.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613a827936c7d---kiliz.pdfIn PDF document text
- https://holcom-wd.com/webroot/img/files/zizupotop.pdfIn PDF document text
- http://ekotop.eu/userfiles/file/zepuveru.pdfIn PDF document text
- https://vhssirimpanam.org/ckfinder/userfiles/files/baguwiredamixo.pdfIn PDF document text
- http://ranjitabiswas.com/userfiles/files/32911530113.pdfIn PDF document text
- http://j-club.eu/userfiles/file/29112439852.pdfIn PDF document text
- http://krallarintavugu.com/upload/file/figije.pdfIn PDF document text
- http://delfosventures.com/userfiles/files/tupoba.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379a9f48a3b---26227402862.pdfIn PDF document text
- http://skkouty.cz/ckfinder/userfiles/files/nirusimum.pdfIn PDF document text
- http://sicompk.com/survey/userfiles/files/20140290856.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_off0000c57f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC57F | 16696 bytes |
SHA-256: 434fd7b02866310725c6443d6b3da2171d33172b28b0f4fb666c50b3dfe5e466 |
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font_01_sfnt_off0000f047.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF047 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001085e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1085E | 11124 bytes |
SHA-256: 842fd50c636a8d174089f105cf3df282e93add72803b7485f175b451db3b3182 |
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