MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the document is designed to farm links for SEO manipulation or to host malicious content. No scripts were extracted, but the overall structure points to a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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 https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1607306220db0f---sogudafonefemujomitisijox.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a849bec25db---69735200269.pdf
- https://noddy.nu/images/file/bakomozub.pdf
- http://usaoxin.com/userfiles/2021-5/file/mowoj.pdf
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16093046b614ce---nugoganad.pdf
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/3749b540c7f8c2ecbacaa21eb4334085/nagixonuvirelu.pdf
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/c835b937cbb62a0ff510be0ac963ee8e/roxagujukadevorigam.pdf
- http://freehajjandumrah.com/admin/admin/uploadfiles/file/65400454023.pdf
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab73576fbf---53651871195.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba13df9a4e1---nejenekadakonosadi.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb942a5328---lotepo.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c8dbc141f7a---93750922060.pdf
- http://traiteur-ribot.fr/userfiles/file/lezedozabola.pdf
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5a5cb7ae9---vejimanejerowutuxil.pdf
- http://irinaburmistrova.ru/files/lunonapivaregow.pdf
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/107694ae0b15ec38706874aa8160aef1/13143454123.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16092bfeba21e5---kugimitixojeb.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160920f2e0d812---fuwebojebosupivi.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=prius+c+service+manual
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bfef.bin5370671f09bb8453f4d0ed5b1c1b978ec8591f0e2ffd9430e3b3f00c98bc31a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFEF | 10340 bytes |
font_01_sfnt_off0000d740.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD740 | 16792 bytes |
font_02_sfnt_off0000ef52.bina5a278d878fa16612161359d2e7aba053c972235aeee5e5489715649dd4efbc2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF52 | 17032 bytes |
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