MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
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, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://vokalensemble-vocembalo.ch/userfiles/file/1416120743.pdf In PDF document text
- http://manu-transport.com/documents/file/fanamoxiposamidib.pdfIn PDF document text
- https://conrays.ru/f/data/72777273504.pdfIn PDF document text
- http://iberryhomemade.com/userfiles/files/77882641938.pdfIn PDF document text
- http://www.de.ruben.pl/ckfinder/userfiles/files/20720233709.pdfIn PDF document text
- http://preciz.com/uploads/wysiwyg/files/92815789651.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fc7766194---78176289953.pdfIn PDF document text
- http://kunjipsc.com/uploads/files/vafeloponarixe.pdfIn PDF document text
- http://roomyab.ir/basefile/roomyabir/files/wokopaxo.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16138551d6cdc3---54209237892.pdfIn PDF document text
- http://stagelight.pl/userfiles/files/93325303923.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613a76408d778---32121426567.pdfIn PDF document text
- http://rallyteamwalraven.nl/file/metekipuronogon.pdfIn PDF document text
- http://fcraregistration.com/UploadedData/file/88923854257.pdfIn PDF document text
- https://linhquan-group.com/upload/ck/files/bitunasezisogodezaganimot.pdfIn PDF document text
- https://asiquim.com/ckfinder/userfiles/files/fadilizipumivitutokut.pdfIn PDF document text
- http://facyt.com.ar/ckfinder/userfiles/files/xejuzo.pdfIn PDF document text
- http://elistaprezentow.pl/userfiles/file/56983085296.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///79224320157.pdfIn PDF document text
- https://prosaison.fr/userfiles/files/18915801188.pdfIn PDF document text
- https://bodymart.in/ckfinder/userfiles/files/dolulalagibos.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=idle+miner+mod+moneyPDF 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_off0000de24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE24 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f636.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF636 | 16752 bytes |
SHA-256: 17b45c9fe9c67a4fbe79ceacb74606973738259e74f556e970daafe7641ed690 |
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font_02_sfnt_off00012189.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12189 | 10048 bytes |
SHA-256: 7ac6738922083c9315f8e8edf4138121557b730a1f27f55ae1f9904c5e746de4 |
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