MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the assessment of a malicious link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://rbc-bezorgdiensten.nl/upload/penepunu.pdf In PDF document text
- http://clarklawtexas.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/luwulodusi.pdfIn PDF document text
- https://dazhonghua1688.com/ckfinder/userfiles/files/mepimibogog.pdfIn PDF document text
- http://puebloexec.com/userfiles/file/11129737472.pdfIn PDF document text
- https://www.rapn.ru/ckfinder/userfiles/files/86514109007.pdfIn PDF document text
- https://glamweddingdesign.com/userfiles/file/62643072677.pdfIn PDF document text
- https://bahispesinde.com/gnc/veri/_files/xoxizemomenarako.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614058513b33c---73432034686.pdfIn PDF document text
- http://yacpa.org/yacpafiles/file/56833464365.pdfIn PDF document text
- https://poojaindiangrill.com/nbloom/fckuploads/file/37361602464.pdfIn PDF document text
- https://everywheregenes.com/uploadfile/qu26_qu106_com/files/pidiwegukukem.pdfIn PDF document text
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/6871766dc212fde808a6e6ae20746f4c/jenezivugaxovawuf.pdfIn PDF document text
- http://metallpress.ru/files/58919336755.pdfIn PDF document text
- http://asacnfservices.com/ckfinder/userfiles/files/jetekikubulugotagupuli.pdfIn PDF document text
- http://thermogroup.ru/uploads/files/41151515621.pdfIn PDF document text
- https://vildmarksjagt.dk/userfiles/file/59067093527.pdfIn PDF document text
- http://hindel-relax.ch/ckfinder/userfiles/files/xisenomodupafoz.pdfIn PDF document text
- https://buonoantonio.it/userfiles/file/1556515464.pdfIn PDF document text
- https://boyanbolyarski.com/userfiles/file/74596797777.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613946ab63361---fimodiniliwupok.pdfIn PDF document text
- http://mfahk.com/upload/files/ripokivuvulogufabum.pdfIn PDF document text
- http://xn--80aaaaadfwa5aftjhxrkcrg8iwc.xn--p1ai/pict/file/50259490241.pdfIn PDF document text
- https://bela.geekers.tw/upload/file_folder/file/45864963251.pdfIn PDF document text
- https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/afed3395f2bc937e421d190014d11403/58463570267.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=family+guy+jesus+gifPDF 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_off0000b62f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB62F | 15732 bytes |
SHA-256: 77adf9845748bcb948808a820126777a27c73da620d3c9c688e95ca5af023bf8 |
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font_01_sfnt_off0000de93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE93 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f6aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6AA | 10456 bytes |
SHA-256: 6f704a2c927a1737f83d91348c731aa581b230baabefb652e3576860dbc3e546 |
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