MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically a phishing trojan. It contains numerous links pointing to compromised WordPress sites and other domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the heuristics indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://archism.ru/uplcv?utm_term=removal+of+appendix PDF link annotation
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/qr6mmifsg4gipgbrgbu1j7cc17/zezubimazalosu.pdfIn PDF document text
- https://theatresaucinema.fr/uploads/file/saveluvulolefi.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/fae80e5c2d9a46c793ed7373c245218f/karetovupefugipedezulati.pdfIn PDF document text
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/hq50fd7qegiorafslt9jjq8vdk/36030711390.pdfIn PDF document text
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/1jbko6g0h7hd1qc685gq42se95/85224002673.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b652e875752---jepewadajaxovipepav.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/16077a9be8e5f0---paviwibefaziluzuzof.pdfIn PDF document text
- http://grafiport.com/userfiles/file/kosekefob.pdfIn PDF document text
- http://kondicionery-dolgoprudny.ru/upload_picture/file/60057547145.pdfIn PDF document text
- https://bhandarisurgical.com/ckfinder/userfiles/files/69370930229.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b1c94c3e274---loxamijiroramuk.pdfIn PDF document text
- http://hitecds.com/userfiles/file/30721542743.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607604ac4b972---gexamoromutosisa.pdfIn PDF document text
- http://prattsofdouds.com/clients/d/d8/d85aab9f4bcbae69c8358f7a9990a0b1/File/sugesivusunitujosano.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16076a456ab665---35803451650.pdfIn PDF document text
- https://airshow-bg.com/file/sufowuzakefaw.pdfIn PDF document text
- http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/19f2m3ikoc82l7no1252o8bug0/39334482750.pdfIn PDF document text
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/plbn4iqtjnbglbr3gkrc72omku/66404433276.pdfIn PDF document text
- http://magogaralbamoble.com/galeria/files/63459204405.pdfIn PDF document text
- http://fritz-fahrlaender.ch/download/xoruwezitosisubipis.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff6e5d5f88---39924493312.pdfIn PDF document text
- http://whs1963.com/clients/7/75/758a827d59fb1c2827eec60421ffdc22/File/jujowapakibawapizig.pdfIn PDF document text
- https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/3ab4373ec014bb33c4231c21b137e0de/9840678832.pdfIn PDF document text
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9663a1a60---xolurugodofogabinawej.pdfIn PDF document text
- 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_off0000ee31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE31 | 10504 bytes |
SHA-256: bd8282a389e10121d3e9f9a38ee26f70cf222bddb489c19fcb0e0a75e7323e40 |
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font_01_sfnt_off00010606.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10606 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E18 | 16764 bytes |
SHA-256: 6d55e2af62e36a02ac7553eb9de687a50cd76477563ea08b05a3f57fde6c5ef3 |
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