MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs, many of which point to compromised CMS upload directories. Heuristics indicate this is a link farm designed to direct users to potentially malicious content. ClamAV detection and ML classification confirm its malicious nature, likely as a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c62a3551f4c---sojofexajelafaxidejet.pdf In PDF document text
- http://assessmentinsight.com/ckfinder/userfiles/files/43241657520.pdfIn PDF document text
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/kofazot.pdfIn PDF document text
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/36036791235.pdfIn PDF document text
- http://teaandtiarasottawa.com/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/93162578089.pdfIn PDF document text
- http://atol-res.pl/uploads/file/92348116178.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/ba0cc476c9f42cde7b97b396de6abb30/sunutujadolitaditune.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160914e7368547---jawekanisekarekufitixed.pdfIn PDF document text
- https://avenue102.com/uploads/file/zovilije.pdfIn PDF document text
- http://colleges-in-tamilnadu.com/FCKeditor/userfiles/file/fidosavetososif.pdfIn PDF document text
- http://sapaethnic.com/webroot/img/files/86343371818.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ff0968e5562---74553562074.pdfIn PDF document text
- https://shop-ecobati.com/medias/upload/files/17039552530.pdfIn PDF document text
- https://nidi.mk/ckfinder/userfiles/files/nanuvekemuxonuw.pdfIn PDF document text
- https://juniorclublivorno.com/sitonews/images_upload/files/43830215992.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/9d76795f1390933f790d423f1fa65804/64701313375.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/52736039553.pdfIn PDF document text
- http://quetthe.com/upload/files/dolopumovo.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160a7bb14eba45---74590760204.pdfIn PDF document text
- http://datavincity.com/uploads/ckfinder/files/90908121311.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=drill+tap+size+chart+metric+pdfPDF 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_off0000cf1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF1B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e72d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE72D | 17480 bytes |
SHA-256: cb246af375d0c7dff2c4398e7e5b378b8f2db64927c4e521f85defb6db5589a8 |
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font_02_sfnt_off00011449.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11449 | 10720 bytes |
SHA-256: ff3af2d9f4cee0a206376b825dc74d48940f30e20b852d8f6ab342e9189f3dbe |
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