MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, while some are marked benign, are part of a larger pattern of redirection to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/rj80ukvfgv8ruh7pgjtuhlfof4/bipokedakirivofinu.pdf In PDF document text
- https://avflash.nl/upload/files/mesojasuwasijotalabope.pdfIn PDF document text
- https://bilalyapidekorasyon.com/userfiles/file/91567659948.pdfIn PDF document text
- https://cls-toronto.com/wp-content/plugins/super-forms/uploads/php/files/f85543c794d97fd5e8150fe47390fb16/lowebukelupaweleti.pdfIn PDF document text
- https://bd-sokolovska.eu/userfiles/file/kutitegajuwaxijoniro.pdfIn PDF document text
- http://www.css-jp.com/upfile/files/2021/08/13/14504948446.pdfIn PDF document text
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/69c5e634e462b67fe78840fcb7c201b3/82547185474.pdfIn PDF document text
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/6n6q4iavv922ubnr7dvc6t2uge/zadidawovuwotezaf.pdfIn PDF document text
- http://mobilesamara.com/img/files/file/fovavoxujaru.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a8505a36287---8752251030.pdfIn PDF document text
- http://bronia.org/userfiles/file/32581315690.pdfIn PDF document text
- http://teleserviciomalaga.com/ckfinder/userfiles/files/xizofilavebegaw.pdfIn PDF document text
- http://sahrugs.com/userfiles/file/69527042497.pdfIn PDF document text
- http://bannails.com/fckeditor_userfiles/file/52491538617.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/tuq1kgposfd8ka8rqb8k60fahh/bujugezoxujivaka.pdfIn PDF document text
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609debd67a365---tibigopedawogis.pdfIn PDF document text
- https://tekdalyapi.com/upload/ckfinder/files/rolawenijefupemun.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609bdd86b8b23---dejuzatikigitiloxel.pdfIn PDF document text
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1610300ef0bf2a---kizepenifugabijis.pdfIn PDF document text
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/7n6b4urm99h8s77k7lm8a51uje/vopixunorozu.pdfIn PDF document text
- http://fabriziocar.it/userfiles/files/javit.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/1sltvjeu7hd7lcu92ftiphb2l7/15694547158.pdfIn PDF document text
- https://keramnsk.ru/files/uploads/files/bitekomogene.pdfIn PDF document text
- http://barudan.hk/UploadFile/file/20210823233443300.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=oil+and+gas+productionPDF 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_off0000db04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB04 | 10684 bytes |
SHA-256: c39fd6154f781b7907e096cb2a5883c366f5080ea74c4531ad7e7f50207e25e7 |
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font_01_sfnt_off0000f36d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF36D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010b7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B7F | 17172 bytes |
SHA-256: 221761907f7dbff9d3f8829b386eb48f0cf6ba525fa9438abf8455029555d247 |
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