MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious content. The presence of a 'free pdf download for window 7' UTM term in one of the URLs indicates a lure to trick users into downloading the malicious file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a30ee6d8be7---perinol.pdf In PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/kiocf6nl945b86uccd8kiprgf6/72620123649.pdfIn PDF document text
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/s8asf0k08377bscmsnhvfuih97/papatatewomiv.pdfIn PDF document text
- http://3qbuy.com/CKEdit/upload/files/87151552053.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/ed5721f4a21a378462976d1030f2eab7/5193320220.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/ecoico1i8bv5o45pls8njjhil5/19215965448.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160940bb81c564---dodomumipesibujob.pdfIn PDF document text
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcb4ff48aa7---11380773592.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/66271f8ec563bd8d302059d5809e9961/12391843125.pdfIn PDF document text
- https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/4774b83a0c6ea72932b3e89cae15d218/16147341980.pdfIn PDF document text
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/a3edb5b1f3322db8f56f99b36d009c54/fetiv.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16082299580739---20890538059.pdfIn PDF document text
- https://zlatartopalovic.rs//files/14605636445.pdfIn PDF document text
- http://preserveproperties.com/userfiles/files/jigenip.pdfIn PDF document text
- https://pet-fashion.ro/mm/file/45328815624.pdfIn PDF document text
- https://ppuhperspektywa.pl/files/edytor/file/noxopil.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b285cc0d88f---65729621371.pdfIn PDF document text
- http://bitite.lv/media/txt/122/file/37631434597.pdfIn PDF document text
- https://artlabjo.com/userfiles/file/9015320912.pdfIn PDF document text
- http://drironcat.com/images/file/45433442969.pdfIn PDF document text
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/91d67a03130e43655cae386bdc127808/9436035307.pdfIn PDF document text
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/9fbaeefa354fb76656d44411ea17a606/4579529418.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/sugupugimifarikukotono.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=free+pdf+download+for+window+7PDF 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_off0000e574.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE574 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fd8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD8B | 10336 bytes |
SHA-256: 3d0bed8a2049b76b3acde640cd03061bbf3ffa2bf3961516ab45a5a8e912d017 |
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font_02_sfnt_off000114fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114FC | 16404 bytes |
SHA-256: ee6b3e63dc2558feb5f79dccb32064ff96420bea3c562a6e344bc62df08b4a4b |
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