MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable domains. This behavior is characteristic of a link farm designed to manipulate search engine rankings or distribute malicious payloads. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 5
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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://pk.mo/userfiles/file/59686536734.pdf In PDF document text
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/1c63c8b98b50687baadb85472c86d17d/gojenesikituvijeripo.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ea8ea4f429---zotatixapasenatinonopam.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/f3arjl2rouaqfcfvr7f5gfijg4/xikigew.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/5dc1bade38c29e85ad1dd23e5d2499d2/ravigudezetorusorawi.pdfIn PDF document text
- https://vandolderskb.com/images/usr/55742762619.pdfIn PDF document text
- http://hrt-foto.hu/_user/file/fogoniwumokemavepujenuw.pdfIn PDF document text
- https://alice-immo.com/userfiles/file/79070433547.pdfIn PDF document text
- http://ronaldtan.nl/images/photo/dedoguwijopu.pdfIn PDF document text
- http://nfc.soo.jp/file/makemidimita.pdfIn PDF document text
- http://www.alexgis.com/siteuploads/editorimg/file/vasusidefizorebov.pdfIn PDF document text
- https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608493d9dadca---56200700094.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/f67243cb0ff285fd61b3f69f67793919/vujan.pdfIn PDF document text
- https://weddingitaly.jp/images/file/31274471412.pdfIn PDF document text
- https://marblobaths.ph/app/webroot/img/files/83535732305.pdfIn PDF document text
- https://mongolia-volkslift.com/uploads/files/temibaler.pdfIn PDF document text
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/2da22f648bd6667425e8eef28952de9b/24091216045.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f121e7595d---91924050899.pdfIn PDF document text
- http://kup-vino.cz/web/ckfinder/userfiles/files/69045513477.pdfIn PDF document text
- http://nfc.soo.jp/file/43117463730.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e56ad2e521c---wibutinuxoni.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608012b7d4de0---fofetomulan.pdfIn PDF document text
- http://udmvdpo.ru/images/files/dokaxikatonibam.pdfIn PDF document text
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a16f37e2020---43405006373.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=business+statistics+in+practice+8th+edition+pdf+bowermanPDF 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_off00015fc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15FC4 | 17568 bytes |
SHA-256: f4e3127e67d0c8f194a84712ea3cc42fe8b0e79bebb6f534ab9f524854bb4725 |
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font_01_sfnt_off00018e2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18E2B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001a642.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A642 | 11424 bytes |
SHA-256: 718a0f93cc0606f5aa11534cbcc5d4711409270766868dae08742485ef6b444c |
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