MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://coretry.ru/uplcv?utm_term=android+l2tp+vpn+unsuccessful PDF link annotation
- http://ingatlantv.tv/userfiles/files/rogerejobenedatepolifev.pdfIn PDF document text
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/083c5456492c546e04de8b4953aa88ea/68141636005.pdfIn PDF document text
- http://icloudcleaners.com/uploads/account/autoresponderfiles/tejazidotifolemik.pdfIn PDF document text
- https://tainandentist.com/uploads/files/202109140632334687.pdfIn PDF document text
- http://watch62.ru/files/files/21417253448.pdfIn PDF document text
- https://pasationtravellers.com/root/FCKeditor/file/pulujenufadeke.pdfIn PDF document text
- https://estduquebec.com/scripts/php/xenocode/lib/ckfinder/userfiles/files/guzatowinenosugofe.pdfIn PDF document text
- https://dukra.sk/editor_uploads/files/zomitu.pdfIn PDF document text
- http://zatexpress.com/upload/userfiles/files/tipegejorepodudemo.pdfIn PDF document text
- http://kimura-shihoshoshi.com/userfiles/file/ximokomamuxaw.pdfIn PDF document text
- https://myphambambi.com/webroot/img/files/46233853224.pdfIn PDF document text
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142f31781ed5---ninuwerigorixuvepimidumej.pdfIn PDF document text
- http://t-p-fortune.com/userfiles/file/117162178.pdfIn PDF document text
- http://jsdarvin.com/files/24990999484.pdfIn PDF document text
- https://digireg.pl/upload/71039191556.pdfIn PDF document text
- http://cecev.com/stockages/files/kipimulexopebawozumaj.pdfIn PDF document text
- http://commune-bourre.com/userfiles/file/99748785078.pdfIn PDF document text
- http://carraracucinecomponibilitrapani.it/userfiles/files/jokuzowuzizobozipetomug.pdfIn PDF document text
- http://studioaba.net/userfiles/files/67345495676.pdfIn PDF document text
- http://fatename.com/uploads/files/202109091124014301.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///96492194497.pdfIn PDF document text
- https://cardion.dk/gfx/fckimages/file/pemavijobasekodosudama.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_off0000c30f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC30F | 17656 bytes |
SHA-256: 3a09f77cb3626b4487eedde4c7bcd50b096b553230aac28c2f50f7cd2040a35d |
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font_01_sfnt_off0000f1a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000109ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109BA | 10720 bytes |
SHA-256: 0bca90ff0287683eb7db55aec1d074b0fc5df75e821aaa7216bbcffa5790dfe3 |
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