MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress sites, suggesting a phishing or exploit delivery mechanism. The embedded URLs, while numerous, are primarily used to redirect to these compromised hosts, which likely serve further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/e01ab0a427af60519b74cbfc8e1b0b23/jujugofezusijerimuwuk.pdf In PDF document text
- http://hocikto.info/userfiles/file/11594641453.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/f95eeb874bba39ad347740c5d735ac02/deposez.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/5lu289gfts67l73muadlsoliq6/wuxuwurokaxogazisasi.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6e5366b11---382272843.pdfIn PDF document text
- https://chupwo.com/editor_upload/file/49831047484.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d202df98ef6---nenutodokuporuxiwix.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/ef8e3f227d6cc2485e912bdf17e71599/92041151440.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/30bde4f1b8cb8323a234145ea43ae94e/96861338066.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607b95fc0f86d---tomexadidusikulaxolus.pdfIn PDF document text
- http://szao-spb.ru/images/news/file/xexakefuzibufu.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/6ja66gvhu50o1kepnpjn6hofj3/89719428743.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ba675f0a5---dexof.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d619ec653---sajonab.pdfIn PDF document text
- https://fundreamz.com/ckfinder/userfiles/files/tixujaputo.pdfIn PDF document text
- http://bisenzia.it/userfiles/files/74913941050.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608674d45e85a---34248210913.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607518654b201---xenuzelonitipiw.pdfIn PDF document text
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/c67c1e1b456702c01f2d8d35237d74e8/80588830050.pdfIn PDF document text
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/5e2ad47942fc9b08f1c18758cf8e35ca/89753914972.pdfIn PDF document text
- https://pioneerlift.com/upfiles/editor/files/xinirutal.pdfIn PDF document text
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/1658b8b468666ae54d3b533c3c6ffc08/nupazomakefi.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/57927218535.pdfIn PDF document text
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160703f477c901---19359670409.pdfIn PDF document text
- http://huh.hu/UserFiles/File/zozomufuluwifemexixu.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/db85fd6b29a7e11ecc2e56dc13063a8b/53719451968.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=songtext+mistletoe+and+winePDF 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_off0000ece4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE4 | 10756 bytes |
SHA-256: 429af60040af63901f190d13a66e16fc7633bc031a8d654b08d376a834ecdd29 |
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font_01_sfnt_off0001057d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1057D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011d8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D8F | 19884 bytes |
SHA-256: 0d582e4ca5834515b3a3d23db5573b1fc771ff729378bc01932861298d2574eb |
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