MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it's likely a phishing or trojan delivery mechanism. The document contains numerous external URIs and links to compromised WordPress sites, suggesting it functions as a link farm. The primary goal appears to be directing users to potentially malicious content hosted on these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://medvor.ru/uplcv?utm_term=metodos+de+investigacion+educativa PDF link annotation
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/310a5b6de1fb62a045f25b690e030980/wuxujejametizegogodom.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/1bef688bfdbdb32280b26514a8200d4f/xezexagegixiwinekuwunax.pdfIn PDF document text
- https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/554000ad35ffa3508b3d9adc49112950/89321119172.pdfIn PDF document text
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/c8d03c949ecdae1646b910beae757a37/45452407598.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a090e574118---83843509737.pdfIn PDF document text
- http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/t1kejede1739pjj86330itlma3/goxanowumujod.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/tomni4qp99nkt529km85626dfd/zepagodopofinaruga.pdfIn PDF document text
- https://corghialberti.it/file/jujuvolabilofefaruler.pdfIn PDF document text
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/7ab6f7820a2f7673bd05658c27633a17/38018334056.pdfIn PDF document text
- http://agnieszkapawlik.com/userfiles/file/39711569010.pdfIn PDF document text
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609137fee3723---9967031805.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160811c0e3deb3---ziwudiva.pdfIn PDF document text
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/6b1f01f96f0c372d63faec5cb654135b/zarezo.pdfIn PDF document text
- https://addsfly.com/userfiles/file/68889738584.pdfIn PDF document text
- http://arohitourandtravels.com/userfiles/file/33770124832.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001189b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1189B | 1944 bytes |
SHA-256: c052f2a682a1af7f75a3d87f716bc9678989379ec17fcb9a57f21fc5c3a4f630 |
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font_01_sfnt_off000121d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D1 | 5044 bytes |
SHA-256: fff43c3798c5de08321c2612d6584510be2af5972b9198b984ccab71752db382 |
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font_02_sfnt_off00013326.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13326 | 11836 bytes |
SHA-256: f6beb66a75677ebf48fac62e4a0f02c51c06636960155ae1b2907145ed988075 |
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