MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample contains embedded JavaScript, a common technique for exploiting PDF vulnerabilities and executing malicious code. It also features a link farm pointing to compromised WordPress upload storage and other disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://cngwalk.com/fckeditor/userfiles/image/suzizuvetuxusovimuru.pdf In PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c12431d9bf4---32151061418.pdfIn PDF document text
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/32c1348a43bf06c42fd241668364839e/88051685393.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b22a8b57e0c---71392666111.pdfIn PDF document text
- http://pizzeria-millemiglia.de/app/webroot/img/editor/file/kogubabevozufis.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/60cd37394132b5e71d46ab8afc2ba17a/61154008937.pdfIn PDF document text
- http://webdulich.com/js/ckfinder/userfiles/files/nosilerokagovimiduxut.pdfIn PDF document text
- http://softwarefactory.nl/images/file/lunujuwe.pdfIn PDF document text
- https://chauphongasia.com/wp-content/plugins/super-forms/uploads/php/files/a3ngqdvem0bmth7rl0nmhjtnmt/47775698307.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/3c7b389271c5d714a621c7c6bc020589/bogofakowalupozizubovopi.pdfIn PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4a4eae1077---zujimidafigufavef.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a7bbf77309f---wajuw.pdfIn PDF document text
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/a1f0addc537a3ec421f630a01effa146/robimuxufa.pdfIn PDF document text
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/28165597126.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a68227bee25---xewenawujokige.pdfIn PDF document text
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160a2700bc2bc1---fawusosogu.pdfIn PDF document text
- http://hotechike.com/files/files/mugotapevedewemovokefepim.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a91e418ec8d---5767355704.pdfIn PDF document text
- https://hotellemaritime.com/hotel/upload/files/62817477737.pdfIn PDF document text
- http://presssimayeshahr.ir/pic/file/wenurobiwapotumum.pdfIn PDF document text
- http://reicar.dk/userfiles/file/82183896204.pdfIn PDF document text
- https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/c8ff0a5b886b769905148c74e1b75770/narorawi.pdfIn PDF document text
- http://bartuceviri.com/userfiles/file/futipufupelofodajet.pdfIn PDF document text
- https://kildevangen.dk/files/xokagelezezukoxa.pdfIn PDF document text
- http://southfieldhigh1973.com/clients/2/27/27a5067865c8334ad4a5a1fd7642c928/File/27429862549.pdfIn PDF document text
- http://www.yoko-ono.be/images/userfiles/file/5539408135.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=can+you+refreeze+steak+after+thawingPDF 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_off0000f345.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF345 | 10928 bytes |
SHA-256: 8b6ac6d2a118922d5d5fdd77c9d479630e312d0afb493852f6628413bb459b2b |
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font_01_sfnt_off00010cbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CBF | 17112 bytes |
SHA-256: ed1249992aa6717fa87e3d75abb13f7de5b1a49696df96bc1078a1329a64dc90 |
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font_02_sfnt_off000139a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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