MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous links, many pointing to compromised WordPress upload directories and disposable hosting, suggesting it functions as a link farm. While no scripts were explicitly extracted, the presence of external URIs and the overall structure strongly indicate a phishing or malicious redirection attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 http://nnrhc.com/clients/9/98/980d61ede38c9a35fe3396fb65651545/File/34565968195.pdf
- http://nanumed.ro/uploads/files/nitojebijoximujut.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ro4esshtijk4q731b8rpakjf55/95097366085.pdf
- http://camionespanamericana.com/userfiles/file/32036053978.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160876e3a51413---8922183873.pdf
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075794aaac72---xobelivopamafita.pdf
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c40e21d071a---movenexozipupepi.pdf
- http://51-lq.com/userfiles/file///tuferinomatogijivowopifi.pdf
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1609619157483e---kiganorawise.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609688d0f311c---tusonetonedimudiwezosul.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16076496d2f608---3030843646.pdf
- https://ises.ca/phpsites/vertical_living/uploads/file/rigekemufusa.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/f89401edeeb36e1a96cff106ed815daf/nekofun.pdf
- https://queensflower.nl/clientfiles/nunog.pdf
- http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5c1baed40---99752978729.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/849f09930d4327bd24d6e75e8853c761/59735308545.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160800c433130d---kokime.pdf
- https://kogan-photo.ru/wp-content/plugins/super-forms/uploads/php/files/81765346b3ca0d6c810bc2a719ff1eee/vawogizazifuverolive.pdf
- https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/16081335fbdb3e---panigunewirewor.pdf
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/8709c19b4f3afeb525a163f0a6507edd/zipiduw.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/tatugikusemivelemovepiweg.pdf
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/c8f16c01a14aea2e44d9d8ece827bcbe/wekavovuwatepixurudidad.pdf
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160959e0d71a1a---55756029063.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+find+the+missing+side+of+a+triangle
- 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_off0001668b.bincfdfa16b087ae3f86c660ba825b97bd8ddb8263ce09864ad711ff76fc0558175 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1668B | 10880 bytes |
font_01_sfnt_off00017f46.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17F46 | 16792 bytes |
font_02_sfnt_off00019758.bin74fce57f52fd8e4c8fd052e6ef74305a792bfb993a5aaa011b0d547773e1eda9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19758 | 19024 bytes |
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