MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous links pointing to websites that appear to be compromised WordPress installations, serving PDF files. This suggests a phishing or malware distribution campaign leveraging a link farm hosted on potentially compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9738
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095cbf8e67ea---nubadevin.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d734f334041---bolil.pdf
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/9140b7f75be41496c8f5b2a0201c4c3e/widapegagofipozinarip.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/qjobn94tn623klmhk36trg5ppl/xexutazunegubidijowagodex.pdf
- http://legalinet.eu/userfiles/files/nexir.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3c1100364---foratoruvukuviwa.pdf
- http://cdwy028.com/uploadfile/file/20210624032553.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f4803c8538---sotovumelotinifakorikisos.pdf
- http://anandtouristcorporation.com/uploads/mimixipo.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cda18079154---6608753220.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833c34397ea---45387336408.pdf
- http://douzonebnf.com/upload/file///17195138344.pdf
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/8076a82484266056e9732c6e90d5a0f3/rijanazawebiwamopo.pdf
- https://asiajitutop.com/contents//files/23218822904.pdf
- http://doks-films.com/pcms/content/file/gipitifubudulat.pdf
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16079baa070a71---3769020423.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16074c6fc759a4---68202672433.pdf
- http://mamnonlittlesun.com/upload/files/8988666105.pdf
- http://healingpawswisconsin.org/clients/a/a9/a991db820639e3552774ed9a746c1e3b/File/feduluruzibesutigu.pdf
- http://hengtaixin.com/HangShun/ckfinder/userfiles/files/namitejiwadijiw.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/2850c13170d0b6b4b314e5697e8a47d5/kiviponamerara.pdf
- https://accesoriosalmayor.com/images/userfiles/file/75458698466.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/3isd3q5rmprrr0q2ilpljm2on2/linukuwakir.pdf
- https://terlickodds.cz/www/www/fckphotos/file/bodajapatad.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/f9f33053e3f501bbcd4757ebc0bc1c72/mizavel.pdf
- http://xn--aknmedikal-yub.com/uploads/file/gatobarivejajo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=what+is+god%27s+judgement
- 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_off00025100.bin2afbf6875747629e1f9c137ce9aa68734a0fadebe999e22a70c46ea4ebb055b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x25100 | 17888 bytes |
font_01_sfnt_off00027fa2.bin6931ddd207ceb9417aaa5848c181dfe41bcd2fe97d056c792d6930ceb3d5ae8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x27FA2 | 10804 bytes |
font_02_sfnt_off0002983a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2983A | 16792 bytes |
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