MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. Multiple heuristics indicate the PDF contains numerous external URIs and links pointing to compromised WordPress installations, suggesting a phishing or malware distribution scheme. No scripts were extracted, and the document body was unreadable, but the presence of many external links is a strong indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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=get+in+line+meaning
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/97573bafe7d4425022a2d31414b11650/12752209782.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad40ff1e38---22790463893.pdf
- http://k-yoga.org/file_upload/spaw_upload/file/20210509062532.pdf
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e9f301fdaf---9191152369.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075741825333---topise.pdf
- https://vannordenvastgoed.nl/userfiles/file/sipisugi.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16087fb925727c---78730789396.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd3398b0ae3---junapidixef.pdf
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/5f9483fd350ca971bebe4781b9478cc1/xilidig.pdf
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16098344d1140c---3299799769.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/4406cf2da689d717720cf8591b7fa354/76093990424.pdf
- http://reutlinger.pl/userfiles/file/pefenusopitabuf.pdf
- http://hoanhaochemical.com/uploads/files/fefafuvelomeboruno.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c07d7ad5aed---fotulumiwotamavenisow.pdf
- https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16084c157ce25b---45219454188.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083b02be2941---lupefeneza.pdf
- https://krono-original.vn/Images_upload/files/88189450832.pdf
- http://hyundai-dongdo.vn/images/files/vebif.pdf
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad1e4fe7f68---gexipomevizilogibofazu.pdf
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/16084a9dc2c3d9---malutex.pdf
- http://csc0351.com/userfiles/file/20210607114558_n878fh.pdf
- https://cornerstonelaw.eu/userfiles//file/40881201972.pdf
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/c6eab9efc62bdf2b6127ef5551b473f4/pajapumisabete.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f4bc.bin6de06bf1bb358726175e76250f31014f0ce73436e8fc0cccf4cb7a1fe3bb60c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4BC | 10100 bytes |
font_01_sfnt_off00010b31.bind76d48cebb55c8067ca97e389669705c153a41a6c8894bde121cd44e3e5c9a53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B31 | 17408 bytes |
font_02_sfnt_off00013849.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13849 | 16792 bytes |
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