MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised websites and hosting further PDF files, indicating a link farm designed to distribute malicious content. The ML classifier strongly flagged this PDF as malicious, and heuristics identified it as a link farm on disposable hosting and pointing to compromised CMS uploads. The primary attack pattern involves luring users to click on these links, likely leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://apartmaji-zunicmile.com/uporabnik/file/vopun.pdf In PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16070529ab8b2a---60943387350.pdfIn PDF document text
- http://www.mezmat.ru/ckfinder/userfiles/files/gopijafudovupoxujivev.pdfIn PDF document text
- https://www.rockfallco.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070fc751850d---xilefibefer.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/b2b7f13906a5ada519fdd4dbd8f1c5d1/xifebatijofag.pdfIn PDF document text
- https://gabinetpro.pl/kosmetyczka/krakow/files/ganazerewimabowaniwu.pdfIn PDF document text
- http://gernano.eu/gfx/userfiles/files/betofagosemotebefem.pdfIn PDF document text
- http://mousike.it/img_ins/files/74141462919.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/32980446427.pdfIn PDF document text
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c9a3132d5d7---bomelizanu.pdfIn PDF document text
- http://keacg.com/upload/files/religojivob.pdfIn PDF document text
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076733337a7a---25603638410.pdfIn PDF document text
- https://soudurelauziere.ca/upload/editor/file/56745328938.pdfIn PDF document text
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081848e24e6a---41707557626.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/rergeo09rvb2m5hco611n8tg75/4541949519.pdfIn PDF document text
- http://olgapolyakova.com/files/files/fujewanexudedewazumesex.pdfIn PDF document text
- http://sumtinathholidays.com/admin/uploadfiles/file/99472639445.pdfIn PDF document text
- http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/sujubilituvudakuvedew.pdfIn PDF document text
- http://arlingtonhigh1961.com/clients/e/ef/ef36f0800c0a5d5a0b00d5ecc8c3c6da/File/28515706060.pdfIn PDF document text
- http://venusland.vn/app/webroot/img/files/gadukux.pdfIn PDF document text
- http://namlongprojects.com/images/uploads/files/48990787359.pdfIn PDF document text
- http://orderleesushi.com/uploads/files/fifupademo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=what+shaft+in+the+manual+transmission+does+the+clutch+operate+onPDF 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_off00010ffc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FFC | 10976 bytes |
SHA-256: de20e339f3064feda76b87796c7dfb562e95e546c93859f301396465ced20af7 |
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font_01_sfnt_off00012944.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12944 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014156.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14156 | 17172 bytes |
SHA-256: 83aae812948ee6b6d7e358b8539577ac2d427e7525c1d6889d39499bd3ea283c |
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