MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to compromised WordPress sites, identified by heuristics as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically a phishing or trojan distribution campaign. The document body was unreadable, but the presence of multiple external links to potentially malicious content is the primary indicator of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609442a45c30f---42342100061.pdf In PDF document text
- http://verduciautodemolizioni.it/userfiles/file/88532336085.pdfIn PDF document text
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/bc5utcl5hnb2c74p05pm8urvco/gizefatabepaxosofelup.pdfIn PDF document text
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/d1f6b7230d0bd27cbd899d3e1ce0a460/vajanuwakiwinirog.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/f1d1427ffa02be6b95d27111a4ecba9d/82554355719.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a32cbc3f86---30405772348.pdfIn PDF document text
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c51c5825f8d---muzabekigenitinixod.pdfIn PDF document text
- http://dostavkaturov.ru/files/file/lakefurina.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/ul02acah8h7isrp6ev16kqadtv/xizijomof.pdfIn PDF document text
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/b78ebbe6e33fb3e87789267ca936c223/45555202759.pdfIn PDF document text
- http://timebank.ru/sites/default/files/photos/pagefile/gavufinilevageborek.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160ac9fb867da4---76200439165.pdfIn PDF document text
- http://www.alfapilates.pl/upload/file/63469600508.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160874d828381e---momerezimo.pdfIn PDF document text
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/ufari2vq0gibbsc6nvolocji7o/dojasafukivuditowarejevo.pdfIn PDF document text
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/41li8oc6sgi3editelbt61qkn9/tivavusovo.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f074aa2dea---butaninodijiwowusarake.pdfIn PDF document text
- http://ciaooo.ru/uploades/userfiles/file/vujenanajukeroter.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=on+the+dullPDF link annotation
- 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_off0000f0bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BF | 18020 bytes |
SHA-256: 730c2a8d330d6fd7f29ff45ff6317391ea48de136a9c7c8f27cbff2a7385603a |
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font_01_sfnt_off000120f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001390b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1390B | 9828 bytes |
SHA-256: 229a0eb17ed650365d39d547e0923ae19be42e05ab2d13482bd45011f9a089f1 |
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