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 other PDF files hosted on various domains, including one identified as a compromised CMS upload. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary function appears to be acting as a link farm, potentially for SEO poisoning or distributing further malware, rather than containing a direct exploit.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://cet.sk/res/file/faluzotaxawe.pdf In PDF document text
- http://hebakotb.net/userfiles/file/fadedosepewiromeni.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135c3b0adea2---37462593476.pdfIn PDF document text
- http://travelport.pl/userfiles/file/49937890427.pdfIn PDF document text
- https://biharlokmanch.org/userfiles/file/kizop.pdfIn PDF document text
- http://luchetti.it/userfiles/files/bubekoduwebara.pdfIn PDF document text
- https://minhgianggroup.vn/upload/files/5872580286.pdfIn PDF document text
- https://comobrew.com/newsite/images/user_uploads/file/zijuxukuviwudaxajaguf.pdfIn PDF document text
- https://apc-algercentre.dz/ckfinder/userfiles/files/wisaferuxamajo.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/tabibadapovoxosu.pdfIn PDF document text
- http://www.nachtruhe.info/up/files/nutokidonavonawu.pdfIn PDF document text
- http://contua.org/userfiles/file/33596588761.pdfIn PDF document text
- http://kpghomerepairs.com/uploads/image/files/60057981250.pdfIn PDF document text
- http://www.biogreeno.com/cms/ckfinder/userfiles/files/mifelijajagapu.pdfIn PDF document text
- http://biosurfest.com/userfiles/files/jomilusexor.pdfIn PDF document text
- http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/81171485046.pdfIn PDF document text
- http://blessingsngo.in/userfiles/files/16398052724.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7301cb92e---33824276171.pdfIn PDF document text
- https://imagebrandstudio.com/userfiles/file/76400364405.pdfIn PDF document text
- https://rjpexport.com/files/80094714049.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161339dcd52868---mezuril.pdfIn PDF document text
- http://cnsgafgl.netsociality.com/upload/files/rinegesofaxenawizotuvoze.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=the+queen+2006+online+freePDF 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_off0000ced5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCED5 | 18000 bytes |
SHA-256: b71e4f55f9148117d5ba8fa814efa95e0668148182ea5b29372ec9c7c9c3f334 |
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font_01_sfnt_off0000fdb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000115cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115CD | 10504 bytes |
SHA-256: e5c1c6891cf1e9e58f1421ee817c675be61dff2879227e55e27ce1d662e1e830 |
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