MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://cructi.ru/uplcv?utm_term=judge+a+fish+by+its+ability+to+climb+a+tree+quote PDF link annotation
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/7300e8bed92f5f34627c0addf8e58870/38028138210.pdfIn PDF document text
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/160afc1baea86a---59907726496.pdfIn PDF document text
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095f541b0c47---valixinimisosi.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160746e7ee8896---ruzifekikixegedexobasoler.pdfIn PDF document text
- https://e-uchebnici.com/img/file/86919464144.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c8be8d59b97---37686572425.pdfIn PDF document text
- https://store-connector.com/_upload_bilder/_filemanager/file/13332038165.pdfIn PDF document text
- http://forter.vn/hinhanh/file/67713603724.pdfIn PDF document text
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160c3040a7fc89---36572601904.pdfIn PDF document text
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609e21d75c982---23370280892.pdfIn PDF document text
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/rds8i4rcd8sivh7ir2ebgfshe1/vigewari.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/cad9mdlqnqks6vkuf4bs9u2c3a/55728697025.pdfIn PDF document text
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a512a7e7624---jerosezafebubasirig.pdfIn PDF document text
- http://www.buildingmalawi.com/images/uploaded/documents/74964368792.pdfIn PDF document text
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cdb9170c588---74674436642.pdfIn PDF document text
- https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607db07003037---88964904016.pdfIn PDF document text
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/adpr7cfjo098n186mh6dsl9vc6/lofegitulufemanadibaf.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c1c0fca794e---54031953599.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/u0nmjh6sj4lhocaf5u97aifd52/surizij.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6355b9e56---23826602132.pdfIn PDF document text
- http://precedent.by/_newsite/images_from_html_editor/file/69190922536.pdfIn PDF document text
- http://www.celso.org/download/dakeresikimobid.pdfIn PDF document text
- http://madmojo.com/fckupload/file/69497843826.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021060712123345.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_off0000d85f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD85F | 11308 bytes |
SHA-256: 37a3dd506e12b6f68a852ffdf2820c7777c0fcf8cd7700a8338aeb19a62ac0b6 |
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font_01_sfnt_off0000f275.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF275 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A87 | 17488 bytes |
SHA-256: 700728d2de30b30e6aea8a89d172bb68c5f879089cad19e5c8706c7d9935e7b9 |
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