MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to potentially harmful content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. While no scripts were explicitly extracted, the nature of the embedded links and the overall structure point towards a phishing or SEO manipulation attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606c928141d2a---21251645469.pdf
- http://www.cddfct.com/up_files/file/9218985070.pdf
- https://hyosungulf.com/uploads/file/joraputuze.pdf
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/cf924ffcddd84eae7acc5081623b23f4/roxodimuxagofudu.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bbb9a1a9d54---91770048286.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8f34e5baf---lajesabufaludofasuw.pdf
- https://silga.ca/userfiles/file/42555204361.pdf
- http://ghioroiu.ro/sites/default/files/file/90942265431.pdf
- http://tuzvedo.hu/elemek/file/22605784110.pdf
- https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/0v4gkas8ce6mh6ert9k51427pk/20145983652.pdf
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/284fe72307696c8cd94a12812655718c/nibegebekegunubetonipo.pdf
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606d610f8233a---58077946163.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608b93d10e914---42111894442.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/2c1e971ecaf3081300a2cea27cad3a59/86483176779.pdf
- http://asupuro.com/user_data/image//file/89211709082.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160990b622089c---80287434911.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a167cc4a76b---17023141520.pdf
- http://renovator.cz/files/file/nosujusosogunixudi.pdf
- http://wooshin.kr/uploaded/file/79587875360a66c58dd2e2.pdf
- https://marblobaths.com/app/webroot/img/files/94431667394.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+remove+open+pores+on+face+naturally
- 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_off0000ec4e.bin61962e62a2862ccbb0401966124641b12851b77a94a0711cd338c2cecb379c8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC4E | 16888 bytes |
font_01_sfnt_off00011841.bin43204d10af37b1d3eb69c902ec09a1332ec784696daa5a6374b1360aee461b6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11841 | 10904 bytes |
font_02_sfnt_off0001319c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1319C | 16792 bytes |
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