MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file functions as a link farm, containing numerous URLs that point to compromised WordPress sites and other domains, likely serving as a distribution point for phishing or malware. The presence of multiple external URIs and link farm heuristics strongly suggests an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://krisoc.ru/uplcv?utm_term=diffusion+of+innovation+theory+in+mass+communication PDF link annotation
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/moalmrnopmn0p6oigls2p3bukh/69557381040.pdfIn PDF document text
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/842afe6619d4a4caff433e3460e67fd6/65160933083.pdfIn PDF document text
- http://synowka.pl/galeria/file/31193069733.pdfIn PDF document text
- http://elskup.pl/images/assets/file/48856231842.pdfIn PDF document text
- http://csc020.com/userfiles/file/20210804051428_b18o7i.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16075939bc70e0---76144758626.pdfIn PDF document text
- https://corianderedmonton.com/ckfinder/userfiles/files/42018381698.pdfIn PDF document text
- https://emmaushuis.org/pages/nexijuwazefegopugaz.pdfIn PDF document text
- https://xn--nmqu14inmf.com/upload/files/78428532990.pdfIn PDF document text
- http://revucue.com/ckfinder/userfiles/files/patekekubojiterasamigo.pdfIn PDF document text
- http://sspvjd.com/FileData/ckfinder/files/20210806_6CF2083C1CA2AFEF.pdfIn PDF document text
- https://asset-books.com/userfiles/file/7692472391.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/nututezareviraputolufafo.pdfIn PDF document text
- http://restravel.ru/ckfinder/userfiles/files/rufiresijox.pdfIn PDF document text
- http://dobrasekacka.cz/userfiles/file/foxubimafar.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/e545f11e2f8f394a61a840ca01de0c50/66128485357.pdfIn PDF document text
- http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/66830680540.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160afb03f2f18e---78066850140.pdfIn PDF document text
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/1100b8696266102f4ca2992c0d16dd54/45866116717.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4e7e67706---niguzewilokipa.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_off0000e041.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE041 | 17260 bytes |
SHA-256: 328d6fed8cfeb5a89e4ef9ecf875277535afc8ca56285cd1ded97551ab11c874 |
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font_01_sfnt_off00010d8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D8F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000125a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125A6 | 10836 bytes |
SHA-256: 1d34558bc44483704226f37d0fcce2fcd7f59b9206b617666c1ab9ca21879eb5 |
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