MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to disposable domains and appear to be part of a link farm. The ML classifier strongly indicated maliciousness, and the presence of compromised CMS upload links further supports a malicious intent. The primary goal appears to be SEO poisoning or directing users to potentially harmful content through a series of redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://modaxch.com/userfiles/files/69940625871.pdf In PDF document text
- http://shanghaiqingchen.com/upload/files/xevulisivuzuvufil.pdfIn PDF document text
- http://fzcce.com/aimgs/uload/files/fofunapokutozosuvolupopes.pdfIn PDF document text
- https://jagamimpi.info/contents/files/wezulitatam.pdfIn PDF document text
- http://sevinctekstil.com/resimler/files/masofimexa.pdfIn PDF document text
- http://zkmeiqi.com/admin/ckfinder/upfile/files/nusepinuku.pdfIn PDF document text
- https://venusnvs.com/userfiles/file/latutijozem.pdfIn PDF document text
- https://brihat-group.com/assets/userfiles/files/xinujaxogemize.pdfIn PDF document text
- http://herve-coiffure.ci/files/48312961037.pdfIn PDF document text
- http://tecnoservizi.com/userfiles/files/70314879754.pdfIn PDF document text
- https://un7un9b3rl1pa7-99.com/contents/files/wijewonatofatoxifarek.pdfIn PDF document text
- http://abcbyspu.com/ckfinder/images_store/files/zovov.pdfIn PDF document text
- http://wonsakai.com/uploads/files/1220079092.pdfIn PDF document text
- http://oroblupiscine.it/userfiles/files/39425325655.pdfIn PDF document text
- http://ivankotov.ru/img/lib/file/66992659190.pdfIn PDF document text
- http://zlhk.ru/upload_picture/file/88986017625.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1613d03d19fbfd---jozaxexomarisumukasixamu.pdfIn PDF document text
- http://hengtaixin.com/HangShun/ckfinder/userfiles/files/53394181392.pdfIn PDF document text
- http://bangdinhphucat.com/quangbasanpham/app/webroot/upload/image/files/12723007792.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16147e74974135---kawewifokojuzagogi.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a810a20f37---7258696226.pdfIn PDF document text
- http://xn--9i1b14l32gg2dsybq3b.com/upload/fckeditor/file/97834056090.pdfIn PDF document text
- https://foursservices.com/nbloom/fckuploads/file/gikuvexof.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=recover+deleted+videos+android+redditPDF 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_off0000bfb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFB3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d7ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7CA | 10472 bytes |
SHA-256: a45f0fe5c01a46c0323e570d9a8dd3f31b7233b6c55a8cf0a0c4e3ae443e29d0 |
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font_02_sfnt_off0000efb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFB5 | 16096 bytes |
SHA-256: 76dce4a4ba5a2be8a5afc6c7ddda7670e15d99e0329e669403e04c30b3423538 |
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