MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm with numerous external URLs, many of which point to compromised CMS upload directories. The ML classifier strongly indicates maliciousness. The primary attack pattern observed is the use of a link farm to direct users to potentially malicious content hosted on compromised websites.
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://pharma-tools.eu/galeria/file/lonitilazefo.pdf In PDF document text
- http://caryhigh1987.com/clients/41333/File/votak.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/puou0r6opq3jvj9iok15okbm74/mevonadazezemuzi.pdfIn PDF document text
- http://maristaslardero.es/userfiles/file/rosademiwamut.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/nowawozuganaririwe.pdfIn PDF document text
- http://bakineshr.az/ckfinder/userfiles/files/10420724475.pdfIn PDF document text
- http://bezpiecznamlodosc.org/files/file/23762622062.pdfIn PDF document text
- http://apsencollege.org/test/fckeditor/file/7054984722.pdfIn PDF document text
- http://cnkls.com/userfiles/file/1625468059.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a80eafa9e89---powasokoxoxe.pdfIn PDF document text
- https://www.ojchamber.com/ckfinder/userfiles/files/lupozudojibinepa.pdfIn PDF document text
- http://eurogeographyjournal.eu/admin/fckfiles/file/ronorazegepixo.pdfIn PDF document text
- http://zjhywt.com/images/upload/File/kilifirejuz.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/1binrhm2sj2f3junen02fhie35/lasenojelukuruluruses.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608cd33829290---wixizapiwak.pdfIn PDF document text
- http://kennycojewelry.com/userfiles/files/202106/1624050420.pdfIn PDF document text
- http://mexvp.com/ckfinder/userfiles/files/41532303260.pdfIn PDF document text
- https://banderlogclub.ru/Files/file/23317309633.pdfIn PDF document text
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/16086d928ca653---jifufiz.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/6d7295087e8302c0de31533fa6db5eb1/81762830294.pdfIn PDF document text
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/59a6163cdbd06170e8290764138a4166/mugifiduneri.pdfIn PDF document text
- https://www.stjohnhomelessshelter.org/wp-content/plugins/super-forms/uploads/php/files/6ae222ee21141e8e4dbd3d15ddedbc7d/daroz.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be48eb752bd---82732827855.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb09d45987d---74770694701.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=basic+english+grammar+4th+edition+answer+keyPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off0000e3ed.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xE3ED | 24164 bytes |
SHA-256: 712b2f07d89fba9fc3edbefdce14fdd596279ed57e46b503757953466471a0de |
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font_00_sfnt_off0000cbdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBDC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010e83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E83 | 11240 bytes |
SHA-256: 85479e7ff2c7d42120ba9011ba5b60d6454ebbf0b95828eda8b2f8c587f76ed2 |
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font_03_sfnt_off0001289d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1289D | 17456 bytes |
SHA-256: 1933fc6c3a7f3b2df98a6d52a17a798fd476b93df28fa98ba1a52ef881ce94dd |
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