MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to lure users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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=autocad+3d+modeling+pdf PDF link annotation
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/42619tvvqt56rccvud8mp9cu6b/72343867116.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16073a975ab947---gesegopizidin.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/6a10f3d05fbe7264b6848bde02970d4b/wekitigevipize.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/fa1eb954c5fd24f81d10e2e8462e425b/wivuzekifakate.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a53d634149d---68460619504.pdfIn PDF document text
- http://www.peretprod.ro/content-images/file/49117258803.pdfIn PDF document text
- http://appletechsolutions.com/userfiles/file/gepufipu.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16079ffb7d0fe3---71555459331.pdfIn PDF document text
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/ikfvauetp2s74aaq1u0ms1j8bb/nasulit.pdfIn PDF document text
- http://sun-eko.eu/files/file/xemazukekobuw.pdfIn PDF document text
- http://samrayburnclassof1980reunion.com/clients/873185/File/ravenetopugibotedizo.pdfIn PDF document text
- http://eperon-kochersberg.com/img_db/dadixalinug.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f7cca662f---67136334293.pdfIn PDF document text
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/fqfcfe5bvfa3us53jlagj5tqdn/pofujanozajimikanobutezi.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/2t0ckc2rebvt2rh0g34inkufm9/50854985438.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/71076354658.pdfIn 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010013.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10013 | 5352 bytes |
SHA-256: a53b065db3a32ae1bd367c2702ab4c65b5bb98dccbdff38f62cfef0a84b23933 |
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font_01_sfnt_off0001124b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1124B | 12416 bytes |
SHA-256: 3077db619413897ac482d55e36f57497618ccdea969f15da52afc4c8e37a5f98 |
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