MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document functions as a link farm, directing users to multiple external websites. Several of these links point to compromised WordPress upload storage, indicating a potential attempt to host malicious content or redirect users to phishing sites. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://catherine-massage.com/ckfinder/userfiles/files/mobumudaxuwufamot.pdf In PDF document text
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/292c862d70060fd02e49fdc48e6cfb8f/81854472678.pdfIn PDF document text
- http://3e3i.com/UserFiles/file///35567823168.pdfIn PDF document text
- http://yangpupark.com/uploadfile/files/lavokifa.pdfIn PDF document text
- http://agnieszkapawlik.com/userfiles/file/50182991061.pdfIn PDF document text
- https://ruiguoex.com/upfile/files/2021/09/17/17108792829.pdfIn PDF document text
- http://asiavent.com/UserFiles/file///37963142195.pdfIn PDF document text
- https://doanandieuduong295doson.vn/namthuan/images/news/files/tubutimozexefivokukipu.pdfIn PDF document text
- http://saiprogetti.net/userfiles/files/penezupoxamunopuzizefale.pdfIn PDF document text
- http://eichler-kammerer.de/14236871962.pdfIn PDF document text
- http://janjoling.com/public/ckfinder/userfiles/files/rufetomag.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/a010ea8bddc6b46df48cd852883cda3f/resufuluvajenafufomew.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/kufotew.pdfIn PDF document text
- http://preprod.app-nomads.com/ugecam/admin/ckfinder/userfiles/files/89694126758.pdfIn PDF document text
- http://newdimension.su/userfiles/file/gixinojopuribevikig.pdfIn PDF document text
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/2a89ad0ccf19bffd320de3089c56b128/23358994224.pdfIn PDF document text
- https://littleitalypizzany.com/nbloom/fckuploads/file/23272400812.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/u6h52j2ngf0gs764emnh425duq/18544096328.pdfIn PDF document text
- https://sentralperdana.com/file/dafilokonajetevakuwisuvu.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-17/20210917122641478131.pdfIn PDF document text
- https://leganordavigliana.com/uploads/file/48073174407.pdfIn PDF document text
- http://metalzilembo.it/userfiles/files/58400226447.pdfIn PDF document text
- https://bazk.info/public_htmluploads/file/14545846129.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=big+words+that+start+with+aPDF 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_off0000b9c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9C3 | 16444 bytes |
SHA-256: b022257c0272a36cc996f47050b2ddbb664be3eb08f777e6bd632e0e87f3b98a |
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font_01_sfnt_off0000e39d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE39D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_02_sfnt_off0000fbb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBB4 | 10384 bytes |
SHA-256: 16d0c251e56967baba745a7caae485de2cb63e6fd032f17625e18508e487ce88 |
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