MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites. The ML classifier strongly indicated maliciousness, and the structure suggests it's designed as a link farm to distribute malicious content or phish users. No scripts were extracted, but the primary attack pattern involves directing users to external, potentially compromised, resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 5
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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://crewmak.ru/uplcv?utm_term=forces+worksheet+grade+6 PDF link annotation
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/f07e53ae0f5daa4fccacacfcd5f2ab57/73833531953.pdfIn PDF document text
- https://circolodelpistone.ch/userfiles/file/42966142680.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/toninutumifomugo.pdfIn PDF document text
- http://nextgenship.net/upload/file/20210519162138620672.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/fef29a4ef9e8cfadbab041195a16ef4e/87230790165.pdfIn PDF document text
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/j9eddovt3502fj7041h4p19mln/vujoxutuwuvapuzuguxateso.pdfIn PDF document text
- http://aloeverajuice.cz/files/file/sofirufufanexazataderuwo.pdfIn PDF document text
- https://akproauto.com/nbloom/fckuploads/file/lijuvagewibufaxed.pdfIn PDF document text
- https://idosekotthonaveresegyhaz.hu/files/files/86101768888.pdfIn PDF document text
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/537daa282fd7c326b294cbef3e780349/somadabawadutusubu.pdfIn PDF document text
- https://emmaushuis.org/pages/56625525609.pdfIn PDF document text
- http://www.srijonihealinghome.com/fckimages/file/75576651735.pdfIn PDF document text
- https://alubiasdetolosa.com/files/galeria/files/rivin.pdfIn PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3c0fb58b58---19102595127.pdfIn PDF document text
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/jb0gr257qgrob9lksocbetuau1/jifodo.pdfIn PDF document text
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077187b6534d---gapubinajurid.pdfIn PDF document text
- http://biomisszio.hu/tmp/27088152664.pdfIn PDF document text
- http://verduciautodemolizioni.it/userfiles/file/61779707843.pdfIn PDF document text
- https://ipic.vn/userfiles/file/pozokaxokivazovuku.pdfIn PDF document text
- http://westernmaki.com/uploads/files/19508425623.pdfIn PDF document text
- http://abacusnancy.com/userfiles/file/pukomuwulizisop.pdfIn PDF document text
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b06f7ba2e55---46674637356.pdfIn PDF document text
- http://amy-tsai.com/images_express/userfiles/files/sikirogolulakijikuram.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_off0000c0fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0FA | 16552 bytes |
SHA-256: 5082d91c00074f817bca799999f8b4ce3ba7ac7e04894a4b762dd90d4ea48985 |
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font_01_sfnt_off0000ebff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBFF | 10732 bytes |
SHA-256: 4b403d3c6bd6c7022815746618b363ec43268666eb38d85cb317b25add1fd09a |
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font_02_sfnt_off000104be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104BE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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