MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous URLs pointing to potentially compromised WordPress sites and disposable hosting, suggesting an attempt to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://ketchas.ru/uplcv?utm_term=all+sports+gh+apk PDF link annotation
- https://usgcambodia.com/userfiles/file/tevigagazaluvelesifujuvi.pdfIn PDF document text
- http://parikshitconstruction.com/uploads/tozetigawuz.pdfIn PDF document text
- http://mrukseo.pl/userfiles/file/4734067281.pdfIn PDF document text
- http://laboratoriodiprogettazione-ve.it/userfiles/files/62994785327.pdfIn PDF document text
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613312c8ea477---jofivaxibopu.pdfIn PDF document text
- http://wmc21.com/ckupload/files/wazazeku.pdfIn PDF document text
- http://csc0516.com/userfiles/file/20210907052756_ei0065.pdfIn PDF document text
- http://www.bluewhaleline.com/image/upload/File/bovitu.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///13454844433.pdfIn PDF document text
- http://ambvetbrashersclavoghisu.eu/userfiles/files/kofugurodagawupazozusegoz.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0e9488e66---94428341634.pdfIn PDF document text
- http://gtlmarinefuel.com/userfiles/file/dasef.pdfIn PDF document text
- http://rioairporttransfer.com/ckfinder/userfiles/files/41165782440.pdfIn PDF document text
- http://zoncmswebsitebeheer.nl/files/editor/file/xevisamemexabo.pdfIn PDF document text
- https://blokhol.com/upload/files/fonijexujij.pdfIn PDF document text
- http://schule.havonix.com/ckfinder/userfiles/files/wifidonulod.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613badd46cab1---96686726154.pdfIn PDF document text
- https://office-agglo-larochelle.fr/userfiles/file/2424555744.pdfIn PDF document text
- http://cy2hand.com/userfiles/duxazikabagivo.pdfIn PDF document text
- http://thekitchendesignstudio.org/uploads/files/20660123041.pdfIn PDF document text
- http://altus.pl/userfiles/file/damesagofebulakiz.pdfIn PDF document text
- http://mwbright.com/upload_fck/file/2021-9-7/20210907210055868475.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_off0000ac75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC75 | 10276 bytes |
SHA-256: 4609410b37cf22fa5ff908feb1e521af761b47b8e08e34a0b5170512e67ccc79 |
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font_01_sfnt_off0000c3ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3CA | 14560 bytes |
SHA-256: d0e7237dafe159ce314d91c0d21c9467cf905bfc24b901dd30749eb2fc5e9fc1 |
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font_02_sfnt_off0000e82a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE82A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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