MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to potentially compromised WordPress upload directories and other disposable hosting, suggesting it is part of a link farm designed to distribute malicious files. The 'SE_INVOICE_LURE' heuristic indicates the document's content is intended to deceive users into downloading a payload, likely a trojan as detected by ClamAV. No scripts were extracted, but the PDF structure and URL patterns strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://short-story.ru/upload/file/72553587725.pdf
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/17e43bace8c66e8bd2638e469b5934cc/6939142745.pdf
- https://cristalensi.com/public/File/86606967893.pdf
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/12f8c30c7883d6b393ad7efc8e894819/13318793721.pdf
- https://glbtrader.com/userfiles/file/pisipifu.pdf
- http://benhvientantao.com/img_duhoc/files/dadibovegufekavujijaxumo.pdf
- http://mertlakustika.cz/images/pages/file/bukimogisiwigogej.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16079cfbf6a9c9---wivetesonowewurewobe.pdf
- https://burragebrothers.com/demo/jolie/beta/userfiles/files/80039499844.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16088558457bbd---22148871600.pdf
- http://greaterdeliveranceministries1.com/clients/61527/File/lewudazuzozisaf.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/137c4f21eb0596883742754e7000ab8c/35672400774.pdf
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a431d7614eb---wevedaxoxevegasugomekiz.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/8e43a210fb43a9d6c4433bacdae6f9b3/kuxara.pdf
- http://alfavit.tv/userfiles/file/29060709647.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/hfj8hl9ajmk3fmhodnnclvg3m4/fovoziroduvufoloxi.pdf
- https://fleuriste79.fr/ckfinder/userfiles/files/75944900973.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c664c57ffe---66434745009.pdf
- http://chsbicentennialclassof1976.com/clients/c/c2/c283bfa2537a82fb79a670aa087b4bd4/File/ropipi.pdf
- https://tekartltd.com/upload/files/46133859619.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c674be72cc3---98627071687.pdf
- https://bazab.ru/ckfinder/userfiles/files/tenunifujofowaxadiseb.pdf
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcd35216970---kobuwupa.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+write+a+personal+history+statement
- 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_off0000ffa7.binee5b27651ea4d5212a687c3344c189e39dd40d0c6337cb599daab84f5b8f20e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA7 | 10708 bytes |
font_01_sfnt_off0001180b.binaabfe63702163dc278a7f8a38465ac5d41263cdce5fd7806ce501466053473a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1180B | 17344 bytes |
font_02_sfnt_off000145c1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145C1 | 16792 bytes |
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