MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised websites or disposable hosting, indicating a link farm for SEO poisoning or phishing. The ML classifier also flagged this PDF as malicious. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.6359
Heuristics 6
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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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://archism.ru/uplcv?utm_term=easy+jazz+christmas+piano+pdf PDF link annotation
- https://motodubai.com/uploaded_images/files/706423592.pdfIn PDF document text
- http://amoy-art.com/Upload/file/65779833208.pdfIn PDF document text
- http://toshiba-center.ru/uploads/files/61848878582.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baeb22c6e76---11807328001.pdfIn PDF document text
- http://lukoilmarine.com/ckfinder/userfiles/files/ketutoxelawegiworemale.pdfIn PDF document text
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/2ea4c96ce155ff0b940c689ab9e58a45/68813926092.pdfIn PDF document text
- http://veszpremkosar.hu/_user/file/saminesatupudofus.pdfIn PDF document text
- http://inezorviskids.com/clients/37546/File/vowonemeseg.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b17725aa78---mibine.pdfIn PDF document text
- http://djarkitek.com/temp/vinney/HTML/userfiles/file/bexajagida.pdfIn PDF document text
- https://implant-drill.com/userfiles/file/22091655705.pdfIn PDF document text
- https://ccskin.com/geektic/files/24051122045.pdfIn PDF document text
- http://standardamulet.com/files/files/rekuxiposupizame.pdfIn PDF document text
- http://accessibilite-salle-eau.com/ckfinder/userfiles/files/delajemifosokik.pdfIn PDF document text
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/bcc4d0ad5b42867461f1fc5967eb9127/geban.pdfIn PDF document text
- http://www.jacenter.org/js/ckfinder/userfiles/files/49454181401.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d0cc1d95c75---73453278172.pdfIn PDF document text
- http://dh-cell.com/ckfinder/userfiles/files/76322965555.pdfIn PDF document text
- http://vitajeans.com/ckfinder/userfiles/files/56992401042.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/0b71545b014a7572ec4ed4be7f7dde3a/wikotobuzibufejodoxut.pdfIn PDF document text
- http://bygreenpure.com/userfiles/file/1731012132.pdfIn PDF document text
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092d373a0db1---65198124396.pdfIn PDF document text
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4bca29845---81230611053.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6b895865c---lajaso.pdfIn 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_off0000d95c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD95C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f173.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF173 | 10992 bytes |
SHA-256: 3e5218023b27f8075c9f2906ab1ca20f00b4b1392e67fc7ddf5582e0622b5a47 |
|||
font_02_sfnt_off00010ad6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AD6 | 16840 bytes |
SHA-256: 0fa2cc70c6e16a329ddf56d5ca4071c89fd34101e68ede5fc3878f4e260ece43 |
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