MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or are hosted on disposable domains, suggesting a link farm designed to distribute malicious content or phish users. The ML classifier strongly flagged this PDF as malicious, and the heuristic firings indicate it's a link farm potentially leveraging compromised WordPress uploads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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=streaming+the+walking+dead+season+8 PDF link annotation
- http://bjjiffy.com/upload/vunulesuwumaserafuvug.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/6ju4sfkn6tgllpuhdgrgoeead1/1953514292.pdfIn PDF document text
- https://mayxaydunghoangphuc.com/userfiles/files/fupugadurobulimige.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/161364b2e020eb---65759563242.pdfIn PDF document text
- http://smartwealthhk.com/userfiles/nazaxixaririz.pdfIn PDF document text
- http://madmojo.com/fckupload/file/89585699448.pdfIn PDF document text
- http://szentimresiklos.hu/upload/file/gefelaxi.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16141e07b6b412---wigevemeruxozarim.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131f6ccc206e---47987977134.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/14e605f00a85cddfe2b079d551341e36/rogitazub.pdfIn PDF document text
- http://printific.com/images/contentimages/files/xevoxuri.pdfIn PDF document text
- https://dukra.sk/editor_uploads/files/98434419083.pdfIn PDF document text
- https://kurishupally.org/userfiles/file/12464467921.pdfIn PDF document text
- https://cottonweb.net/userfiles/file/25197563247.pdfIn PDF document text
- http://angelcabrera.com/FCKfiles/file/jubejag.pdfIn PDF document text
- http://energo-winstal.pl/userfiles/file/2013409257.pdfIn PDF document text
- https://imagebuzz.net/ckfinder/userfiles/files/dovubuzolanamidefow.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614766aa9c2b4---41849466900.pdfIn PDF document text
- https://33mobility.net/uploads/files/rilezibinu.pdfIn PDF document text
- http://storemisr.com/uploads/files/topefe.pdfIn PDF document text
- http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/73898830484.pdfIn PDF document text
- https://techlan.pl/files/file/vegizarinikoxigo.pdfIn PDF document text
- http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/tuzexopumosuxato.pdfIn PDF document text
- http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/tadalogeluwano.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_off0000de84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE84 | 17956 bytes |
SHA-256: 9598636e02185c53c85ee9006782799fb9a110cd46a603f99201100f4b17db64 |
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font_01_sfnt_off00010cf4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CF4 | 11156 bytes |
SHA-256: bad589d6bc3a33001847b61cd98b467b3aa4ba52184d01a81b6981fd0c308ed6 |
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font_02_sfnt_off000126a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126A6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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