MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent. No scripts were extracted, and the document body was unreadable, so the primary attack vector appears to be social engineering through link redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://cesiedizioni.com/userfiles/file/4396630311.pdf In PDF document text
- http://assytekservizi.com/userfiles/files/94735210732.pdfIn PDF document text
- http://jinsonmetal.com/Upload/file/nivibunubigasimadafavunu.pdfIn PDF document text
- https://coverline.ro/userfiles/file/38424302730.pdfIn PDF document text
- http://abwalabamaave.com/uploads/files/16392812503.pdfIn PDF document text
- http://www.americaninvest.net/upls/files/xuxet.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411494845e9---mazifanasilem.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613754a4eed73---lepigiwivesogiwik.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/voxafogemetiwefurepaniwab.pdfIn PDF document text
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613990e1638cb---levori.pdfIn PDF document text
- http://netcentricnj.com/ckfinder/userfiles/files/negixunumuron.pdfIn PDF document text
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/9a485ef0f6bca3881ab2a32c30a7718e/81100083905.pdfIn PDF document text
- https://triatlonshop.cz/userfiles/file/mofodeguzetapigezazajaje.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/9e85fef7f252579c6d66132679d65c39/67729902855.pdfIn PDF document text
- https://grandhotelushba.com/userfiles/file/zitididodifomesep.pdfIn PDF document text
- http://cafehinglung.com/uploads/files/gigowipube.pdfIn PDF document text
- http://formpart.com/upload/ckfinder/files/89611097359.pdfIn PDF document text
- http://nbc.com.vn/ckfinder/userfiles/files/25981326854.pdfIn PDF document text
- http://balbu.hu/uploads/news/file/31335648282.pdfIn PDF document text
- http://sosonomo.com/ckfinder/userfiles/files/8934084489.pdfIn PDF document text
- http://drkoopman.nl/cmsimages/file/52700714229.pdfIn PDF document text
- http://word.mn/uploads/assets/54935904145.pdfIn PDF document text
- http://www.binghan.my/userfiles/file/kofemarakuxikisoxitudumet.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=android+torrent+search+appPDF 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_off0000bca7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCA7 | 16640 bytes |
SHA-256: 16a561598c5190acd7a14f571d2b8c75f22150c7cbc4ecdb725e14407ee2bf52 |
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font_01_sfnt_off0000e7e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7E4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fffb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFB | 10544 bytes |
SHA-256: 4db78e2fb4f16ce94cf0bd6e008fc66f5e364bfb7fc14ba4bfc0a84bf284a72d |
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