MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple compromised WordPress sites, which in turn host other malicious PDFs. This suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for initial access via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/21337caecd8270cf18a70608bd8e74b9/kokoji.pdf In PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6e3149999---bamarominafetuseliden.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-5-2/20210502092606605742.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bac894bcabb---2781969815.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/39427416e847f7783788dd3424f9af5f/fafanugezewokege.pdfIn PDF document text
- http://rainesclassof1980.com/clients/3/31/314d3ac3c31ee16cfc8f78d457af0ebc/File/gilakipilatofuvowema.pdfIn PDF document text
- http://intemhathanh.com/img_duhoc/files/78497478333.pdfIn PDF document text
- https://aldurra.ly/images-editeur/img/file/61333812569.pdfIn PDF document text
- http://cezanart.com/userfiles/file/29821553209.pdfIn PDF document text
- http://phuongdonggolf.vn/app/webroot/uploads/files/sujegudazirajafunekiwo.pdfIn PDF document text
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/a662n6h2ubd1ar8eo1dkshi7gc/52598911789.pdfIn PDF document text
- https://atlaskvartir.ua/data/uploads/files/12375967865.pdfIn PDF document text
- http://agrostroi-proekt.ru/ckfinder/userfiles/files/22230441857.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021072704373573499.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/480fc719181f6937f1311a6c646a9fc3/kawufomapabiru.pdfIn PDF document text
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/161030af304c45---32449031694.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160d2db72e4bba---81514323779.pdfIn PDF document text
- https://xn----7sbbjg7ctfs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f2c2609026fb96a61e13052608f249cc/7483560005.pdfIn PDF document text
- http://uleshuzatshop.hu/files/file/gojumofifokirujip.pdfIn PDF document text
- https://mujeresenmovimientoplus.com/userfiles/file/67218705601.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/8e6c6c0d4c341c44c62a1fd11a2dbd99/satipupevubel.pdfIn PDF document text
- https://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/gerawovuwotajekedizivov.pdfIn PDF document text
- https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/9f14bde91e62c087b2c8911668672f71/45351201945.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=what+size+bat+is+used+for+tee+ballPDF 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_off0000f0e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0E2 | 10640 bytes |
SHA-256: 7dc6f11461d5eac1ada8693bf49ce02162ad8a99b4f522a8283c92d41dd10b9f |
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font_01_sfnt_off00010964.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10964 | 16996 bytes |
SHA-256: 5c1747e681aa1ce8b78140488a4df6b5efeb385ff1a0343a97eca98e98ae28b9 |
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font_02_sfnt_off00013529.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13529 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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