MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites hosting other PDF files. This suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier strongly indicated maliciousness, and the presence of multiple external links on disposable or compromised hosting supports a malicious intent to redirect users to further harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://coretry.ru/uplcv?utm_term=qr+scanner+for+pc+download PDF link annotation
- https://rdsdealers.com/ckfinder/userfiles/files/noxelaxutotaloseber.pdfIn PDF document text
- http://puebloexec.com/userfiles/file/papumiketoxoxerawiwesofo.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/0uliop95699d7k9lhvhmbckhq0/zifofegelorakurabaj.pdfIn PDF document text
- http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/nefafemebimovove.pdfIn PDF document text
- https://valve-toho.com/userfiles/file/92840749468.pdfIn PDF document text
- https://ladangmimpi2.com/contents/files/xugepesafuxepusano.pdfIn PDF document text
- https://www.channeloflove.com/ckfinder/userfiles/files/95126187943.pdfIn PDF document text
- https://rafaellopezehijo.com/upload/files/soxofenivifite.pdfIn PDF document text
- http://lamgi.pl/ckfinder/userfiles/files/puwut.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612f35d87e54b---xixojogitipilanadedep.pdfIn PDF document text
- http://giaydantuongphongngudep.com/images/news/file/16703418803.pdfIn PDF document text
- http://siamsankyo.com/Uploads/file/65485570505.pdfIn PDF document text
- http://rpsbchamber.org/editorData/file/damel.pdfIn PDF document text
- http://pwmtqatar.net/userfiles/file/gimajezewuxemodefesinuv.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/f6a05e862f6417a95c62b5209a82c54f/36495236533.pdfIn PDF document text
- https://ksdc.in/userfiles/file/83713282441.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/7df7d88b353fd463dcb30dd61fcebe5b/88007882621.pdfIn PDF document text
- http://kfnmsz.com/upfolder/e/files/20210910120400.pdfIn PDF document text
- https://flyags.com/editorResources/file///sonejume.pdfIn PDF document text
- https://mlspoland.co/files/file/8025290626.pdfIn PDF document text
- https://weyergans-hcc.lv/userfiles/file/62780082173.pdfIn PDF document text
- http://dental-forum.ru/userfiles/file/vumabegoxidisikorijigi.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_off0000c6b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6B9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000decb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDECB | 17604 bytes |
SHA-256: 97320a1b9180d3e0ad8e0deaad7679074f7e8b71a7fe15f4cdf10799a74faa41 |
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font_02_sfnt_off00010cc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CC3 | 10568 bytes |
SHA-256: 47702262a031782593240a13c84db4e99a9daad8995497577a9319b3e67ee4c6 |
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