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 CMS upload directories or are hosted on disposable domains, indicating a link farm designed to distribute malicious content or engage in SEO poisoning. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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 https://accounting789.com/ThImg/file/noximodixixulupoxapomiz.pdf In PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/7b5c5ab83ba6c6ac2227e72fc1f0ea78/vobowupile.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160806c8ee3091---kofukonasiro.pdfIn PDF document text
- http://elcampoeco.org/FCKeditor/file/77226030136.pdfIn PDF document text
- https://fulzugaskozpont.hu/files/19819136166.pdfIn PDF document text
- http://aucoindeshalles.fr/menu/file/79624814388.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/acf8379ff70b074a63db05a2c420bc4a/wimalifof.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e000dc1ad0---37833235976.pdfIn PDF document text
- https://nestuby.com/userfiles/file/70345754121.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/i79ieasraouhclkt7u9t61gk31/raxugagawojug.pdfIn PDF document text
- https://menlopark.com/wysiwygfiles/file/vozuzevup.pdfIn PDF document text
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160922871a720a---88170880248.pdfIn PDF document text
- http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160781234dde56---puwalojipugapoxode.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee82003a71---sugejotaloxivozebisas.pdfIn PDF document text
- http://accronline.com/userfiles/file/pewojekomeni.pdfIn PDF document text
- http://winfielddeli.com/ckfinder/userfiles/files/nesoxirozatebuxojaxoj.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5d012dfb1---73919265878.pdfIn PDF document text
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/16080ddcea616f---75536017480.pdfIn PDF document text
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/edab245531619e64e3dfbc8cb0685e58/14169685433.pdfIn PDF document text
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cca72d09527---lomorixuxopes.pdfIn PDF document text
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608b4c01cd6b1---50628928010.pdfIn PDF document text
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/160965a582ad2a---46651838389.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071bd0f0b08c---koxitisezoxazar.pdfIn PDF document text
- http://kengosushionlineorder.com/uploads/files/1360264757.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=icse+total+english+language+class+10+solutionsPDF 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_off00013c3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C3E | 17312 bytes |
SHA-256: 55382e671b81932c1262f1c6fb25bac0bc71fed29d6ff116124b3efb30eb74f4 |
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font_01_sfnt_off00016953.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16953 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001816a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1816A | 10632 bytes |
SHA-256: 51d36b6b3c9f6c7e172f919dcaa015966f41dec52ba1cbd088a9f94f614afc5f |
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