MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of links, many of which point to compromised WordPress sites. This structure is indicative of a link farm designed to distribute malicious content or lead users to phishing pages. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c7919b99f7b---soxujopojudobavivef.pdf In PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/vs23gq8lkc03b5m4nr1llgej82/bipejutosobesuguvuvanejox.pdfIn PDF document text
- http://velapower.com/glwh/UploadFile/file/2021072914430973499.pdfIn PDF document text
- http://neoneofitou.com/ckfinder/userfiles/files/degidenuwaliletusapam.pdfIn PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081b69bc2f5d---33832522104.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611370204f03d---jomusezonomabezogudumumu.pdfIn PDF document text
- http://jrmhandling.nl/upload/file/lerorixugara.pdfIn PDF document text
- http://klick-tipp.at/ckfinder/userfiles/publics/files/baribananonif.pdfIn PDF document text
- http://nuitsdartistes.eu/images/file/80792481618.pdfIn PDF document text
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161095ec95aa1d---75151421566.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/fo142l1ksfq4lbkauskjco5k81/49734059131.pdfIn PDF document text
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a102524c29---wolunakuwilagixujevixi.pdfIn PDF document text
- http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/87700500630.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/b770ee96a55281f3262e0646c116b64a/togixipup.pdfIn PDF document text
- http://rolmech-strzelno.pl/Upload/file/ruxupemunujel.pdfIn PDF document text
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/edda6d40a433d7d1d6815087bc688358/68423489701.pdfIn PDF document text
- http://psychologyforeverybody.com/ckfinder/userfiles/files/57469815451.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a24c4b083a9---najug.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c91965d662---41766493715.pdfIn PDF document text
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/85226870f4ccec6d62c34c52fa975193/nirifovopifisiwiwefojow.pdfIn PDF document text
- http://dailygiasi.com/uploads/userfiles/file/81757806158.pdfIn PDF document text
- http://giadinhlaurenso.org/upload/files/96226855569.pdfIn PDF document text
- http://architettoannalisatinelli.it/userfiles/files/49532936913.pdfIn PDF document text
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/5cf2cc5c89ccb2961a360626f5967baa/duxofowawuzamogav.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=which+is+the+official+language+of+singaporePDF 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_off0000ddb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDB6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f5cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5CD | 10852 bytes |
SHA-256: 86ebb9f07386996d20e0c13bf14d313af475e723bd31487904e8e0807d702516 |
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font_02_sfnt_off00010eda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EDA | 17736 bytes |
SHA-256: c789548af2ba34406168f8b093dfcc54bdaf20747db151b069fb4d2a6c231117 |
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