MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm for SEO poisoning or phishing. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/jubikiwajiva.pdf In PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aac38231e1---gibimifovuz.pdfIn PDF document text
- http://music-summer-courses.eu/upload/files/56575721061.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a3611a8e8c---jojidasufi.pdfIn PDF document text
- http://uniontsg96.ru/admin/ckfinder/userfiles/files/xabupivixutonanikixub.pdfIn PDF document text
- https://pypconsultores.mx/userfiles/file/33901221225.pdfIn PDF document text
- http://kpotplace.com/uploads/files/74784189880.pdfIn PDF document text
- http://grafitym.kz/files/file/95646284989.pdfIn PDF document text
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/161380a4f5d65d---peletopimok.pdfIn PDF document text
- http://soluzionebenessere.eu/userfiles/files/guxazu.pdfIn PDF document text
- http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/katerebekafavuliserug.pdfIn PDF document text
- http://phulieumaymacbaoco.com/hinhanh_fckeditor/file/27140861284.pdfIn PDF document text
- http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/lunarinawefinalisijap.pdfIn PDF document text
- http://matsusushionline.com/uploads/files/14190034273.pdfIn PDF document text
- http://longarmquiltacademy.net/fckeditor/userfiles/file/nokesevovebuge.pdfIn PDF document text
- http://gernano.eu/gfx/userfiles/files/28549755516.pdfIn PDF document text
- https://rh-h1tapi-turbo.com/contents/files/domevejanokofopijagugekab.pdfIn PDF document text
- http://scvumaichiramen.com/uploads/files/lokosizozov.pdfIn PDF document text
- http://a-xian-coat.com/uploads/files/202109071047383159.pdfIn PDF document text
- http://giasuthienphuc.com/Images_upload/files/mipekovipi.pdfIn PDF document text
- http://ck-tct.ru/userfiles/file/bovekiwowoxosutajebera.pdfIn PDF document text
- http://originalbau.hu/imagesfiles/20213928194.pdfIn PDF document text
- https://unibel.pl/pliki/upload/file/bofupopifugij.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=financial+mathematics+lenin+jothi+pdfPDF 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_off0000dbbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBBC | 19232 bytes |
SHA-256: 6f7ee5bb24407a88c2cc4f782760ea808293eb9f0774f9d0356d6be4404e2388 |
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font_01_sfnt_off00010dd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000125ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125EF | 10892 bytes |
SHA-256: dfdded0600af1f3ee40f9f0196cd97edaf751488323b01797c372f6fedc3bdd9 |
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