MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. No scripts were extracted, but the PDF structure itself facilitates redirection to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://synerhu.ru/uplcv?utm_term=chicken+with+chili+powder+and+brown+sugar PDF link annotation
- https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/6197b5fa170636040adf1baa9ad53deb/vuritoritif.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608df0817c597---7480080769.pdfIn PDF document text
- https://mzr-avocats.com/buddha/ckfinder/userfiles/files/vakil.pdfIn PDF document text
- http://jncs.kr/page_data/file/20210624025311.pdfIn PDF document text
- http://creativeindustries.ru/uploads/userfiles/file/19750896068.pdfIn PDF document text
- http://abwlanham.com/uploads/files/8934767167.pdfIn PDF document text
- https://welltowork.org/wp-content/plugins/super-forms/uploads/php/files/63dac94a2036cf97e58daa0b13bf451f/83450177468.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7c085aee9---lomanug.pdfIn PDF document text
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/1a0e365c1c4995f3b55c4d9a0b2689fd/kamago.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16083c5bb33bc4---visar.pdfIn PDF document text
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/7gi9s6i5e8k55bcia62sebi0ad/41334378412.pdfIn PDF document text
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a20be3f220---jojumupokamusobi.pdfIn PDF document text
- http://mrmax.ca/clients/9797/File/17378263784.pdfIn PDF document text
- https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160842a7e644a4---55069398456.pdfIn PDF document text
- http://promador.pl/userfiles/file/puzigomif.pdfIn PDF document text
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160703bb2538a6---53457955848.pdfIn PDF document text
- http://pozitron-s.ru/userfiles/file/54536119321.pdfIn PDF document text
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bacb83f9b7---9290364803.pdfIn PDF document text
- http://kanchanaspa.com/ckfinder/userfiles/files/13078601132.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/ejaeh67c7iic3l6iacuu7pp953/borot.pdfIn PDF document text
- http://ip-golubev.ru/ckfinder/userfiles/files/wuzivovewej.pdfIn PDF document text
- http://d4sontario.ca/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/23782405393.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16083eea7d868d---99099905042.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607402edd1871---kavoliwafagisomugokiv.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_off0000ec22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010434.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10434 | 17540 bytes |
SHA-256: bff6c2af672d7c2375d46cc5aec774a23689349c8409cb7d40e2cb6012f47ed7 |
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font_02_sfnt_off00013231.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13231 | 11240 bytes |
SHA-256: 79e9cd43d7778a79bacd8e423bf78b1d8d7af2ecba9339b43f38ba6d21eea149 |
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