MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, many hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 https://catamma.ru/uplcv?utm_term=line+messenger+mod+apk PDF link annotation
- https://synersys.fr/contenu/file/givaz.pdfIn PDF document text
- https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/jalido.pdfIn PDF document text
- http://auswallendorf.de/userfiles/file/79548837037.pdfIn PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614105917ce96---54126252022.pdfIn PDF document text
- https://grandiosieventinuziali.it/filesUploads/file/mutumebet.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f67d48317a0d29713eb9ec62d3dcdb07/liketixajamikodapuronixub.pdfIn PDF document text
- https://alakharia.com/public_html/userfiles/file/poxekef.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1613b51cb10e1f---basilutivurugawupu.pdfIn PDF document text
- https://thietbidiensino.vn/media/ftp/file/tobilunutunigidapifav.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/sefamosanajejej.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16137f8d3e9e80---58061433905.pdfIn PDF document text
- http://www.prakashirrigation.com/uploads/fck/files/92629203721.pdfIn PDF document text
- http://almar-bus.pl/userfiles/file/xevazefil.pdfIn PDF document text
- https://paperland.bg/uploads/file/jajinisifi.pdfIn PDF document text
- http://xtra360.net/campannas/file/67029032514.pdfIn PDF document text
- http://stattus.com/assets/file/9493655136.pdfIn PDF document text
- http://sm.ac.th/ckfinder/userfiles/files/vawolaxadikodove.pdfIn PDF document text
- https://sardavetri.it/userfiles/file/keremefiwew.pdfIn PDF document text
- https://crbz.ru/userfiles/file/37893039963.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161415a3d6d792---sogupepobenujasag.pdfIn PDF document text
- http://mega.kz/media/upload/files/nedalikubexisifibi.pdfIn PDF document text
- http://thanhnhomdinhhinh.net/uploads/files/1525733392.pdfIn PDF document text
- http://zkqzl.com/uploadfile/file///2021091121100454.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_off0000d93a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD93A | 10640 bytes |
SHA-256: 13dbb481c96ef1d194f0b951b30ff31ae85655122c775e658c936384cc51105a |
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font_01_sfnt_off0000f145.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF145 | 17584 bytes |
SHA-256: 385bfba44f37ae8a2d8566b629a93ed8f5b63413dd43e74d6cc25e120097bb4d |
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font_02_sfnt_off00011e57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E57 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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