MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external URIs, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm. The primary purpose appears to be redirecting users to potentially malicious content or for SEO manipulation, rather than executing a direct payload from the PDF itself.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://infrive.ru/uplcv?utm_term=definition+of+the+word+compelling
- http://akcjonariusz.com/UserFiles/file/jorasowowixewalim.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16082adacc0ff9---suxokigenagosodu.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/sb90c3q4tub347t6emisbuahed/dameruvikuxisenalupogova.pdf
- http://3bbb.fr/ckeditor/upload/files/5766344553.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/b34a584f31fe423aad14e73f82c18461/29996479376.pdf
- https://growyourmoney.in/userfiles/files/32912637974.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/079d79a91bc8911779c12ed6c5cff433/17087577630.pdf
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/1fe6ea8cf9955422191eb87562f15a9c/lunujerinas.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16079888811b56---veditarus.pdf
- http://cs-web-design.de/ablage/userfiles/files/galomof.pdf
- http://cephedanismani.com/images/pages/file/46110574073.pdf
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed8dd43740---72343714073.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a28334e2790---8423875167.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/8kejn7lmlc8mi9vpg515m8vbsl/vadiluguvalapigazujixore.pdf
- http://revucue.com/ckfinder/userfiles/files/mofesofoz.pdf
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/584e035bd402e9cc4e0e6a8849a945c9/4527538213.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/c9ef2ef55c6b64c57cfe462c7893c06a/58939702261.pdf
- http://sam-global.ch/files/file/sozikegawazibawekaz.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609b35045dc5b---75395328217.pdf
- https://alshaabcoop.com/userfiles/file/34338924090.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080958d7c1f7---romisomajifegu.pdf
- http://king-ber.com/UploadFiles/file/20210609070011142.pdf
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9fd9a54db1---79406902579.pdf
- 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_off0000ef36.bin2834a397d345b5cbc7b8bc891c84d8639c9dccd6c0c654e110860e11f03ea67d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF36 | 17340 bytes |
font_01_sfnt_off00011c25.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C25 | 16792 bytes |
font_02_sfnt_off0001343c.binbb6a9ff72942c41b0b2f5649ac6d0234f5e645818b013824da2c3f6dafcce434 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1343C | 10824 bytes |
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