MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains numerous links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content or conduct phishing. No scripts were extracted from this sample, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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 http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc45e4774b---34277484879.pdf In PDF document text
- http://michianaorchidsociety.org/clients/2/28/2832e32407c795c8d28ffe68102aa18e/File/36894688152.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/13ce9581a4cda19e3b71afb15ef7b3c9/15027406603.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/77631529516.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/0dl4in9rngcshc9tiiad8i0o4a/vosotirul.pdfIn PDF document text
- http://xn--49s538bo8ux8c.net/userfiles/file/42394846674.pdfIn PDF document text
- http://designpavelzapletal.cz/files/file/56588856230.pdfIn PDF document text
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/4knlpk3oqf6pvhjr8np0vkrjbf/76863117440.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d020b8b52e2---16738754646.pdfIn PDF document text
- http://synowka.pl/galeria/file/22214185764.pdfIn PDF document text
- http://didopack.com/files/xidebetesaw.pdfIn PDF document text
- http://fszhenjia.com/upfolder/e/files/20210701200145.pdfIn PDF document text
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5ee785c0e---59297638851.pdfIn PDF document text
- https://irantruck.ir/data/file/zuvopageto.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d1aced4bec2---90630857892.pdfIn PDF document text
- http://huucodatlanh.com/userfiles/file/50479628741.pdfIn PDF document text
- http://bangtaisay.com/uploads/userfiles/file/nizofamekomuxosowesajido.pdfIn PDF document text
- http://csc0451.com/userfiles/file/20210703134535_3wtjn5.pdfIn PDF document text
- http://pphjako.pl/userfiles/file/mopogodi.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/59748961356.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/31eeb2e4d85bb98fc2a6836fc518e1c4/gajaroko.pdfIn PDF document text
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/e4cac4faded797e29036645e16816d46/fomexarexejemepimin.pdfIn PDF document text
- https://yingzhaoliuart.com/upload/file/37811476253.pdfIn PDF document text
- https://listapp.in/ci/userfiles/files/xoranevufolopetarip.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077d8bcc0c06---vegawanolodonimikuvokeni.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=example+of+anchoring+and+adjustment+heuristicPDF 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_off000105c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105C4 | 17976 bytes |
SHA-256: c45b591500e797d5f487113f979e1e7a4659df8f40d8013a6295fa281881ed55 |
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font_01_sfnt_off00013548.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13548 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014d5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D5F | 11384 bytes |
SHA-256: 88b878804b08b9a790332a50a5a8d3f4a25f1ca66dbbb6de1262b6bf18bff5cb |
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