MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites utilizing the 'super-forms' plugin. Heuristics indicate this is a link farm, with a high ML score and ClamAV detection confirming malicious intent. The primary purpose appears to be directing users to potentially malicious content hosted on these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://primax.fr/wp-content/plugins/super-forms/uploads/php/files/l5ukpb74ap1rab9p6hnnreru34/34584287989.pdf In PDF document text
- https://atpl.aero/ckfinder/userfiles/files/72122152145.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/fk7pr2hi0p4qsnh0tpp1cnnvbr/15581853718.pdfIn PDF document text
- https://derechosenred.org/aym_image/files/pexidagilirifor.pdfIn PDF document text
- http://romangruszecki.com/uploaded/file/fapokanup.pdfIn PDF document text
- https://binarbaidequipment.com/public_html/userfiles/file/84128181183.pdfIn PDF document text
- https://xn--nmqu14inmf.com/upload/files/zepid.pdfIn PDF document text
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/4205c423355b25cb8ef02247fa66566b/gutegapabuperopadefepafun.pdfIn PDF document text
- https://davidfauquemberg.com/home/fauquemb/david/bbdg_site/userfiles/file/65613684922.pdfIn PDF document text
- http://japan-railpass.info/images/blog/file/jejij.pdfIn PDF document text
- http://t-cso.com/upload/file_folder/file/75940616984.pdfIn PDF document text
- http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210915191139.pdfIn PDF document text
- https://actaviaserica.org/board/file/files/93566786496.pdfIn PDF document text
- http://clingac.es/d/files/sakojikivobepewozatub.pdfIn PDF document text
- https://madame-tina.com/ckfinder/userfiles/files/1360536889.pdfIn PDF document text
- https://trungtamgiasuhcmmq.com/uplaod/quangtri/files/kabis.pdfIn PDF document text
- https://solener.info/ckfinder/userfiles/files/87677177280.pdfIn PDF document text
- http://birdwatching.sk/media/file/xoluroreniwa.pdfIn PDF document text
- http://realestatespoznan.com/uploads/65549960659.pdfIn PDF document text
- https://shoppe.everybodyisnotdoingit.org/gift/userfiles/files/birowutut.pdfIn PDF document text
- http://dongzzang.com/userfiles/file///zufewajejewovofewagisu.pdfIn PDF document text
- https://novahealthclinic.ca/userfiles/file/52275950436.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=tiger+salamander+life+cyclePDF 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_off0000d66a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD66A | 17996 bytes |
SHA-256: f739a5e5eb4ff7fa0cb7f81cc4019ec258018e2b22875a2b8116c877796ddd12 |
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font_01_sfnt_off000104ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011cd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CD1 | 10680 bytes |
SHA-256: 702f76f926829fb1b2cba3b7dc21d4144c6969ec1d03680f568ab6825333469c |
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