MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests an attempt to redirect the user to a malicious site. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 https://laborke.ru/uplcv?utm_term=best+sharing+app+like+xender PDF link annotation
- https://www.lire-les-notes.com/ckfinder/userfiles/files/berivawekekonaroluturatu.pdfIn PDF document text
- https://steammining.com/userfiles/file/83632997981.pdfIn PDF document text
- https://iskoruma.com/upload/ckfinder/files/31971592162.pdfIn PDF document text
- https://floridainvestment.cz/files/file/83776978865.pdfIn PDF document text
- http://templeton.sk/userfiles/file/96706421494.pdfIn PDF document text
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/385c1fb8c62d4d928c8b258ee472f5a1/dufibimufap.pdfIn PDF document text
- http://888spirits.com/userfiles/file/nukup.pdfIn PDF document text
- http://adas-muko.pl/photo/file/mupirezugopudinosutose.pdfIn PDF document text
- http://tumwebthailand.com/ckfinder/userfiles/files/gemotaz.pdfIn PDF document text
- http://apluskleaning.com/admin/images/file/jebifixolosepikuzedazorax.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136a2d673536---80195334655.pdfIn PDF document text
- http://dichvugiayphep.net/hinhanh_fckeditor/file/febativen.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613daa92b0b68---rakegaxanagokeji.pdfIn PDF document text
- https://habrit.tw/ckfinder/userfiles/files/68810401386.pdfIn PDF document text
- https://rtquery.reitoken.org/Coaching123/images/files/zalizinunosugurudimut.pdfIn PDF document text
- http://lapmaymn.samdigroup.vn/app/webroot/upload/files/wogexim.pdfIn PDF document text
- http://tasteofruraleurope.eu/upload/File/kakonom.pdfIn PDF document text
- http://xn--72c7caerxx0d3a9eve.com/UserFiles/File/18929999212.pdfIn PDF document text
- https://n-vv.dk/userfiles/file/lozometiketulabus.pdfIn PDF document text
- http://naturalmis.com/userfiles/file/nobilosobizenexut.pdfIn PDF document text
- http://boschvietnam.vn/files/usersfiles/files/xulegijazir.pdfIn PDF document text
- http://www.extramas.com/userfiles/files/nafikesoxaxefapufagow.pdfIn PDF document text
- https://www.vignolaweb.it/ckfinder/userfiles/files/523988373.pdfIn PDF document text
- https://samsungdvm.net/upload/ckfinder/files/73718590815.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_off0000c62a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC62A | 16852 bytes |
SHA-256: 52066d8b01a4b5e09deafb2e91b8d285ee119597f35f148348c798019ee4a791 |
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font_01_sfnt_off0000f200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF200 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A17 | 10796 bytes |
SHA-256: 6d88803c03d099840b13a7fa97dce91df41b718ed52182b601dea6d6f09dcd89 |
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