MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. The document contains a large number of embedded URLs, many pointing to compromised WordPress sites or disposable domains, characteristic of a link farm or phishing campaign. The primary purpose appears to be directing users to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://queure.ru/uplcv?utm_term=moldes+de+letras+cursivas+para+imprimir+y+recortar+individuales+pdf PDF link annotation
- http://ck-tct.ru/userfiles/file/tofomeliwugizuvizodit.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b78b6675196---kitivax.pdfIn PDF document text
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/51a8b028c1de6c23a5f53c34d75e8beb/roledebofaxerexu.pdfIn PDF document text
- http://simonhoirup.dk/userfiles/file/80807057319.pdfIn PDF document text
- https://ozmutludokum.com/userfiles/file/22605922865.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4866b3df93---66384252264.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607da69064f46---fesajewenewapiw.pdfIn PDF document text
- http://amandamaitland.com/images/file/fuwokijetoxi.pdfIn PDF document text
- http://karpatskiles.ru/store/file/legofimoxojafokizas.pdfIn PDF document text
- https://www.rosebankprimary.co.za/inc/ckfinder/userfiles/files/2392596075.pdfIn PDF document text
- http://mn-print.ru/ckfinder/userfiles/files/93656005429.pdfIn PDF document text
- http://szjglaw.com/uploadfile/file/2021071923453673499.pdfIn PDF document text
- https://cfi-registration.org/buzzboxgift/img/userfiles/files/bokiguzawoz.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c5552ea72c9---jikasit.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff95ab854a---13161674460.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dfe683a8fc---majemoluzisi.pdfIn PDF document text
- https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/hm0fr9a3fkqpuerh1qjq394t00/91987809487.pdfIn PDF document text
- http://lacyfamilyunity.com/clients/2/20/203fd950dafdada58ea32e7b96f0d147/File/xodabu.pdfIn PDF document text
- http://dolphinegypt.net/userfiles/file/xozenebigin.pdfIn PDF document text
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/5632788aa4eddb1b3891af2177eb7d18/vefuzomorugudizawu.pdfIn PDF document text
- http://project-lovcen.me/userfiles/file/jeberarijexakim.pdfIn PDF document text
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160703992b47b1---83555149521.pdfIn PDF document text
- https://skyzoan.com/cake/beta/userfiles/file/16226053798.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_off0000e8e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8E7 | 17784 bytes |
SHA-256: 476148d5a4e776ffe18e9af634907694e7811bb43c1c0d25d30ff33568ba75d4 |
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font_01_sfnt_off000114c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114C0 | 11056 bytes |
SHA-256: 4db56c78e02acc17b933791c3ae3229ffa4c1b14876deba530952a47e07b0ad6 |
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font_02_sfnt_off00012e83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E83 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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