MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains a large number of embedded URLs, many of which point to compromised WordPress sites. This structure is indicative of a link farm, a common technique used to distribute phishing lures or redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier suspicious score 0.2805
Heuristics 5
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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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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://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073610f238b7---7214341094.pdf In PDF document text
- http://romanakladatelstvi.cz/userfiles/file/ruzasefego.pdfIn PDF document text
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/75f90a25a3f533130888ac78bf252c1f/rofowibesodarowokuj.pdfIn PDF document text
- https://bustotoronto.com/userfiles/file/5187935774.pdfIn PDF document text
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160949f0a71e57---12143558918.pdfIn PDF document text
- http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vodepega.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e0301ba6ecd---tavilepabisazo.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/p5h097lguv8nn5sct6dhl0fl4a/nobuseledatadalewekewuj.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/97245381f50564b413d98bd862b40f26/wuzozokaxufebugopabab.pdfIn PDF document text
- http://uk-finansist.ru/userfiles/file/nivapojivadulisuxuka.pdfIn PDF document text
- http://train-in-japan.com/images/blog//file/zutifujilulexesopesejitok.pdfIn PDF document text
- http://silesiacapital.eu/data/file/11108837942.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160b7297718908---vufunimejibixeraze.pdfIn PDF document text
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16087cf2a121ea---66101363829.pdfIn PDF document text
- http://prime-standard.com/piceditor/file/7269848737.pdfIn PDF document text
- http://americansemitruckparts.com/d/files/dawowufedefibut.pdfIn PDF document text
- http://ufnk.fr/app/webroot/files/file/70455207610.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/sufuto.pdfIn PDF document text
- https://kermiradiatoriai.lt/images/files/fepisaxerajonoximof.pdfIn PDF document text
- http://ohmamakitchen.com/uploads/files/67463822517.pdfIn PDF document text
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/795c9e1671470bdaad6ed13a0e2d5d9f/ruranezudelo.pdfIn PDF document text
- https://heritagecambodiatravel.com/userfiles/file/6959456950.pdfIn PDF document text
- http://wsp.pl/userfiles/file/koxadaxudisinajuze.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=first+day+of+school+hillsborough+countyPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000145fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145FA | 10952 bytes |
SHA-256: 8990bf0b04f8ef91f111d269916bbb69f0934d4f20997b2a55a5a4e140c279a6 |
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font_01_sfnt_off00015f13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15F13 | 17192 bytes |
SHA-256: 736bad5b1f990d62aed4ecf6620ce51020afb900679dca4ee8c145c7c85029fb |
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