MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating the PDF acts as a link farm to potentially malicious or compromised domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://synerhu.ru/uplcv?utm_term=calories+in+one+egg PDF link annotation
- https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/8e09eb01adfdbb86897a9adb840b94c6/61190123441.pdfIn PDF document text
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/ec1954fb8a5f205478de2bfb6e36a5ba/jepomumusafozosawununi.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/b60hrbm3spmg5dir4e4gtpd7d2/46295638627.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/8r3junuu8pu1qqu83vnj3v1si4/depiwebetowozafukerag.pdfIn PDF document text
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d581097745---mesox.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160cb213b7a339---359585049.pdfIn PDF document text
- https://securityguardsupply.org/php/uploads/file/7824201093.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/35f5b325fe566a6bc21544464d8e8fab/duzapudoj.pdfIn PDF document text
- http://sunjewelsonline.com/userfiles/file/57956092827.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607853eae928a---xupipipomefaneditisoku.pdfIn PDF document text
- https://bdcomunicazione.it/file/92462113915.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e7a1b90f107---85876797675.pdfIn PDF document text
- http://bukharageorgia.com/sites/default/files/file/2694562485.pdfIn PDF document text
- https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/664c3c8c2df259cc17e32a00233c8c12/66356957541.pdfIn PDF document text
- https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/81971a32d1bfe41ce24d103ffcdafbd3/45563141222.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c5831802fec---gukevok.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e1ee4a8cb---2968462870.pdfIn PDF document text
- http://c-amc.com/upload/files/67790932780.pdfIn PDF document text
- http://galsabino.it/userfiles/files/8865387088.pdfIn PDF document text
- http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609acd9b33c82---32074579416.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bdcb0b2e817---midasabemijot.pdfIn PDF document text
- http://rotarylaspalmas.org/documentos/file/buwawezofog.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089c65614ace---kemobul.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a82fa1ad678---guzuxujiva.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/wupesapijupurif.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0f081a4ae---27559871681.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_off0000f65d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF65D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E6F | 16556 bytes |
SHA-256: 079cefd5b07ada2ca6fef0fcb0deba2aad83bf4aa134919ddcdab296d9629ac8 |
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font_02_sfnt_off00013986.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13986 | 10216 bytes |
SHA-256: fbb89a257533f9fefb46f68e857bdebc3e3df1fe10d8fc760ce39f7a0bd0b1f1 |
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