MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by an ML classifier as malicious. It contains a large number of external links, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to distribute malicious content or manipulate search engine results. The presence of these links indicates a potential for users to be redirected to malicious sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://synerhu.ru/uplcv?utm_term=download+mercy+chinwo+latest+song PDF link annotation
- http://moscowprice.com/content/xuploadimages/file/92608357995.pdfIn PDF document text
- https://dermatologie-chamonix.com/userfiles/file/88426782145.pdfIn PDF document text
- http://cesnek-vysocina.cz/UserFiles/File/38411335546.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161347f2df2b09---zigupuvajudopa.pdfIn PDF document text
- http://chunmianxian.com/upfolder/e/files/20210909201908.pdfIn PDF document text
- http://conganbacgiang.vn/app/webroot/uploads/files/sojubepoxik.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/309b190b67e58d8330641fcb22722cca/84645868044.pdfIn PDF document text
- http://sky1981.com/asset/uploads/files/mawumezasubavegerum.pdfIn PDF document text
- https://aljuboori.com/userfiles/files/95519159700.pdfIn PDF document text
- https://sindonis.com/userfiles/file/74055723546.pdfIn PDF document text
- http://spharma.ua/files/file/87403240465.pdfIn PDF document text
- http://studiotecnicolari.it/userfiles/files/84666528565.pdfIn PDF document text
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/o1t1ugknr6vsgdhcpje72pbks4/sanegeguxiwupotijumuk.pdfIn PDF document text
- http://controldellaves.com/app/webroot/arxius/file/sopewajaxasomowafovopopa.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/636f5d209c031067d3220f1e99bb0a41/lomurutidedileni.pdfIn PDF document text
- http://a-pluset.com/userfiles/witefixitazazodomazilo.pdfIn PDF document text
- https://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/zezezamulatigadisipe.pdfIn PDF document text
- https://illinoisfiscalpolicycouncil.org/app/webroot/userfiles/file/pewatisodejadazofoka.pdfIn PDF document text
- http://mikllc.mn/uploads/files/61381018947.pdfIn PDF document text
- http://thebeautyofdesign.nl/ckfinder/userfiles/files/neduxejatisofujagage.pdfIn PDF document text
- https://tommytest.dish1314.com/data/html_editor/files/43090129115.pdfIn PDF document text
- http://miet-boot.ch/images/uploadedimages/file/82686756887.pdfIn PDF document text
- http://marmaraisg.com/images_upload/files/guwulatoxasi.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613656152a981---maripivigugenevunipo.pdfIn PDF document text
- http://microsolder.hu/userfiles/files/2459260905.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_off0000d198.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD198 | 16964 bytes |
SHA-256: e76bdef7dda57d641810a5ed02d1d79bc0c757e0c865d5e8ef8a2854283c45c6 |
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font_01_sfnt_off0000fdc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC3 | 11016 bytes |
SHA-256: ba0229225a137baa878c8343ae5a0af37c985e5659022754514f06add0d2ca81 |
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font_02_sfnt_off00011705.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11705 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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