MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm. The ML classifier strongly indicated maliciousness, and the structure aligns with SEO spam or phishing lures. No scripts were extracted, but the presence of numerous external links is a primary indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://oniceh.ru/uplcv?utm_term=baixar+apk+free+fire+advance PDF link annotation
- http://longruiglass.com/ckfinder/userfiles/files/20210905_035330.pdfIn PDF document text
- https://needlugs.com/userfiles/files/budediga.pdfIn PDF document text
- https://spacio.hk/attachment/file/wejagiwajebunuxi.pdfIn PDF document text
- https://fundacjaartfreeart.pl/userfiles/file/xawenosuzo.pdfIn PDF document text
- http://xn--82ca1bkibi6eufn5bh1b7i3e.com/UserFiles/File/99069638485.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/8946c46cafd89a016e80142535663740/tedetun.pdfIn PDF document text
- https://cafesca.info/ckfinder/userfiles/files/dibixiveromopiwe.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/0604c381e921e6529e24786a50c866a5/82506100416.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c3a925121---juloraral.pdfIn PDF document text
- http://dogable.de/userfiles/file/12928027322.pdfIn PDF document text
- http://apexnepaltravel.com/userfiles/file/61390772405.pdfIn PDF document text
- http://edukoc.net/userData/ebizro_board/file/tewapadezu.pdfIn PDF document text
- http://szhlfz.net/upload/1315999774.pdfIn PDF document text
- http://lex-ter.ru/admin/ckfinder/userfiles/files/53450384878.pdfIn PDF document text
- https://konzolstudio.ro/uploaded_files/file/6959107052.pdfIn PDF document text
- https://tapetcenter.ro/app/webroot/files/userfiles/files/91013165422.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612efca2659b5---5990115750.pdfIn PDF document text
- http://shrlie.com/upload_fck/file/2021-9-7/20210907060657908085.pdfIn PDF document text
- http://ap116.ru/userfiles/file/78948892885.pdfIn PDF document text
- https://gaadalagi.com/contents/files/dopipeziwudajivedalozogax.pdfIn PDF document text
- http://inistor.com/ufiles/files/mumewaxodexutob.pdfIn PDF document text
- https://kingwaterpure.com/ckfinder/userfiles/files/80820003693.pdfIn PDF document text
- https://rabudiagnostic.com/userfiles/files/4200126826.pdfIn PDF document text
- http://cassotech.nl/site/data/ws/files/63661360624.pdfIn PDF document text
- https://buffinvestment.com/upload/ckfinder/files/jasoneruwaxetugig.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_off0000cc6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC6B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e482.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE482 | 10492 bytes |
SHA-256: 1e9e92b93d0dee827dd60321b4a55a00de2a5dc78e5052b8655db30967e3e520 |
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font_02_sfnt_off0000fc7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC7D | 16356 bytes |
SHA-256: 03b0c23a98a559f5a90a5980ec623171e40f8d1bb5984e2b6669a916eb8c887b |
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