MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for delivering malicious content. The ML classifier strongly indicated maliciousness, and several heuristics point to the PDF acting as a link farm hosted on compromised WordPress sites. The embedded JavaScript likely redirects the user to one of the listed malicious URLs, potentially for phishing or to download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9842
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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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://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/6fea1476cfa306aa473f659e77215a08/pomotadek.pdf In PDF document text
- https://volgogradexpo.ru/ckfinder/userfiles/files/difibiguf.pdfIn PDF document text
- http://podlahypilat.cz/admin/file/36679753222.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/bb483150793eeb1e428cb92d3fb83bef/lesafufamilubatofoxuve.pdfIn PDF document text
- https://pensiunea-escape.ro/ckfinder/userfiles/files/runonegetiju.pdfIn PDF document text
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/pr9ib0cjipmcel2rbm4lnuk0m0/rerodagufolenolefadagaj.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092044908637---90948565931.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7240a61b9---giwib.pdfIn PDF document text
- http://nceed.kr/pds/userfiles/files/jigisunujofelok.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/af6e99ac86c513304071c9f416a7ac70/tixetemotujumudataj.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160c6facbdd857---41033304193.pdfIn PDF document text
- http://gute-reise.ru/i/files/files/24476840087.pdfIn PDF document text
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/ed84f7c983860e6c7995487b785a4635/wanalabuwinisekojavob.pdfIn PDF document text
- https://amthanhanhsangchinhhang.vn/upload/files/balobegikuxunilojubupiwa.pdfIn PDF document text
- http://qytbearing.com/upfile/file/belogemixamukixe.pdfIn PDF document text
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/4migbkfsbcma7gmaqtmdp18j1p/sijofakavezivupitotomener.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/dc84eb0a0cbbca27c9bb3105d3a1d449/91837727724.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a8ecb784bcd---vusanavumelujomav.pdfIn PDF document text
- http://prociweb.hu/sites/files/file/gogekufoluzuxuv.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c74ec3aaed1---11351731339.pdfIn PDF document text
- http://lawngo.net/fckfiles/xomiriwopepifisiwu.pdfIn PDF document text
- http://kurumakaitori-one.com/js/upload/files/tivesuvujewipok.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6a61485fd---togeromagivevajimuve.pdfIn PDF document text
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9c64c65fe0---pasiziz.pdfIn PDF document text
- http://texmet.pl/userimages/file/lelemuwasonoxitate.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=college+physics+seventh+edition+answersPDF 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_off0001b013.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B013 | 18812 bytes |
SHA-256: e2a9a81c0a52c5bf73ec155411d3b228f8adfb04c6a6905483a623e3e729a3e5 |
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font_01_sfnt_off0001e190.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E190 | 11092 bytes |
SHA-256: a0d1987b5de3495ad3923bc79a9d8850e2f63a09ec5a6bee16718b89aee2e9d7 |
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font_02_sfnt_off0001fb50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FB50 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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