MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing users to multiple compromised WordPress upload directories, each hosting another PDF. This suggests a phishing or redirection campaign aiming to lead users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9934
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 http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160d445cecf555---wimemijilufib.pdf In PDF document text
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944c30e3a63---ganizepitik.pdfIn PDF document text
- http://i-harmonics.com/upload/files/9803652777.pdfIn PDF document text
- https://taechoclub.com/FileData/ckfinder/files/20210604_2D794F3669E6643E.pdfIn PDF document text
- http://angelescare.com/userfiles/file/jixup.pdfIn PDF document text
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5e5b27d09---16253970679.pdfIn PDF document text
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ab364d738---gipidujeboxuvazi.pdfIn PDF document text
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/e52e31e59da47d033bf7bce6fe7a6c49/78539096461.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/junitomisibigalefufona.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16096170fbbb0b---zokomufazo.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c27ef2ccb56---kotokazasenozobopavik.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608cac91bf291---91326310127.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/ktatlona2k9tirf70rg2v81nn4/gogupexogilujemenow.pdfIn PDF document text
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870cee4999a---zasanuderejunig.pdfIn PDF document text
- http://kagoshimakojintaxi.com/userfiles/file/zisaxagobosanowe.pdfIn PDF document text
- http://mahlkoenig.nl/app/webroot/files/userfiles/files/97368159858.pdfIn PDF document text
- http://winkeleninzundert.nl/uploadimages/files/49753959129.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609bbd7f0fed2---butemugofalavowuvikexared.pdfIn PDF document text
- http://thaiboxes.com/piceditor/file/45427474108.pdfIn PDF document text
- http://sirmamedia.com/ckfinder/userfiles/files/tewizilusodak.pdfIn PDF document text
- http://myucmas.com/userfiles/file/79050534228.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16071f92ead307---samevofojuvodukalexoxo.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/f936251741c5420ef9f2317ff5a1894c/zajavafi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=variety+principle+of+designPDF 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_off0001308e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1308E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000148a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148A0 | 16756 bytes |
SHA-256: 3218ae9ae19cf5c8d6611d78043436ed28bbb52d03e7542f184565e1f19348a5 |
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font_02_sfnt_off00017444.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17444 | 10880 bytes |
SHA-256: 1738bb867fb57455d6859ebb367b31b84342c049c7537c789805ffe81c9b6574 |
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