MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is a PDF containing numerous embedded URLs, many of which point to compromised websites or disposable hosting. Heuristics indicate this is a link farm designed to redirect users, likely to phishing sites or to download further malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, consistent with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://irlanc.ru/uplcv?utm_term=play+store+latest+version+2021+apk PDF link annotation
- http://proxkimya.com/resimler/files/20775493845.pdfIn PDF document text
- http://sake2metustin.com/uploads/files/46717827614.pdfIn PDF document text
- http://boilerservis.ru/uploads/files/51822260078.pdfIn PDF document text
- https://tomorrowhubs.com/upload/users/files/39593601689.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16130b04879102---36266144434.pdfIn PDF document text
- http://instalater-macecek.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/17417280837.pdfIn PDF document text
- http://vitalenzyme.com/uploads/fckupload/file/20745565324.pdfIn PDF document text
- https://lrsdev.com/userfiles/file/68926618443.pdfIn PDF document text
- https://myagenda.myagenda.cz/pictures/editor/files/retizovidakugi.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/161330c722cac8---57073496355.pdfIn PDF document text
- http://dobre-jaja.com/Upload/file/93070124156.pdfIn PDF document text
- http://tw-sincere.com/upfiles/editor/files/dower.pdfIn PDF document text
- http://qtjdb.com/UploadFile/2021/09/08/file/20210908_000823_108.pdfIn PDF document text
- http://xn--80aamwn.xn--p1ai/userfiles/file/wamon.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a082f9abe0---75334414625.pdfIn PDF document text
- https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/54515185709.pdfIn PDF document text
- http://1544-7419.net/upload/fckeditor/file/91008743811.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133ac8580363---23432909007.pdfIn PDF document text
- http://capmar.eu/userfiles/file/55928110770.pdfIn PDF document text
- http://sloplast.com/userfiles/files/zazovibatimujolufisuwel.pdfIn PDF document text
- https://slotpt2.com/contents/files/denogirude.pdfIn PDF document text
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/slhgaj27813c86539hureegpr2/jajetomoxese.pdfIn PDF document text
- http://xn--zb0bw3kv4s8mn.com/upload/fckeditor/file/tivalamidiluxemetibopu.pdfIn PDF document text
- http://ncdesign.it/userfiles/files/78878173288.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_off0000de27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE27 | 10812 bytes |
SHA-256: a2cfd1d8d728c348954e03fc8be843eedd6f1a9b6b5b7240b5172e2ab3d25e54 |
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font_01_sfnt_off0000f75c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF75C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F6E | 18380 bytes |
SHA-256: 1e4dd3100e43e1e3ab410f5daba5c4486f75c948a054b2beb480c787b51ab497 |
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