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 a high likelihood of malicious intent. The document functions as a link farm, with numerous URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The presence of external URIs and compromised CMS upload links further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://crewmak.ru/uplcv?utm_term=unfiltered+coffee+cholesterol PDF link annotation
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160702cbd5461c---11134692750.pdfIn PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/961af4606b8f3893f75d9f45f22b7ab8/70792444654.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/6a259b41acab04b470e1fbc1a2e3ce4b/fijanara.pdfIn PDF document text
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1607c718913690---majikediwak.pdfIn PDF document text
- http://pasted-radio.de/web/files/mifuboja.pdfIn PDF document text
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/f4223e9bf37ab675e5adb0fd81b9e71e/timiwu.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a95c1c0ed---tubap.pdfIn PDF document text
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/gerepukatono.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1606f68ea924cf---69048974786.pdfIn PDF document text
- http://packturf.fr/files/35890829126.pdfIn PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0c3f0576d---39094107481.pdfIn PDF document text
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609f0ecc6fa30---40811164268.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b61a2caa6e9---62050771397.pdfIn PDF document text
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/cc0786f0c4a1c0fb6da5640ce5180347/24458774073.pdfIn PDF document text
- http://turnyras.lt/Files/file/kizuwopimob.pdfIn PDF document text
- https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/bfcae051e85ba31539d638c5a213af39/79004720339.pdfIn PDF document text
- http://hndgyl.com/v15/Upload/file/20217591201155.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_off0000e400.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE400 | 10416 bytes |
SHA-256: c3e7998ab07b27ef62f83829cd94b3e3c5394e151d050c2b0c6d5fd20399f236 |
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font_01_sfnt_off0000fb7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB7C | 17892 bytes |
SHA-256: e56664eeb728e4ca5824f3c67c36a3ee3731f5f8c552c6df8b59ab023491d3c0 |
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font_02_sfnt_off00012959.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12959 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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