MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple compromised CMS upload directories, which in turn host other PDF files. The ML classifier strongly indicates maliciousness. This pattern suggests the document is part of a phishing or malware distribution campaign, using a network of compromised sites to host and redirect to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://billedbutikken.dk/articlefiles/file/80198739850.pdf In PDF document text
- https://stradatextiles.com/upload/ckfinder/files/18499399519.pdfIn PDF document text
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a943ef145f---wipobajedovolaraxaza.pdfIn PDF document text
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/p48fq9khgeqjdgu8tc0m60blu3/sizana.pdfIn PDF document text
- http://abnicum.com/files/file/93337161569.pdfIn PDF document text
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/8947336399.pdfIn PDF document text
- http://interwork.sk/userfiles/file/167247360.pdfIn PDF document text
- http://gibisch.biz/files/files/79398413340.pdfIn PDF document text
- http://brukbet.com/user_images/file/41243994174.pdfIn PDF document text
- https://upbfassadenbau.com/upload/file/24615764377.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f96c65076---77487297095.pdfIn PDF document text
- http://tachikawa-derma.biz/ckfinder/userfiles/files/xumevinakadikabinotojifot.pdfIn PDF document text
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/4c61e1827615549818f788a90a4cd17e/91052633594.pdfIn PDF document text
- https://audreyheselmans.com/_files/file/wozubogofojadaxizinam.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612b2823a3974---rodufedikaromazenafad.pdfIn PDF document text
- http://ahchala.com/img/file/salabetosot.pdfIn PDF document text
- http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/37054012255.pdfIn PDF document text
- http://huichem.com/ckfinder/userfiles/files/xilagamezodazotovu.pdfIn PDF document text
- https://groupburuemas2.com/contents//files/movarojuwuw.pdfIn PDF document text
- http://akkoryazilim.com/userfiles/file/14039411959.pdfIn PDF document text
- http://kapelski.pl/userfiles/file/mesitejelapufik.pdfIn PDF document text
- https://yar-net.ru/userfiles/file/30918568510.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=recruitment+process+in+hrm+pdfPDF 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_off0000bed9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBED9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d6eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6EB | 16116 bytes |
SHA-256: d3143b7a853d93e8bbfe82d3946323455bde103fd93cda6cb03555fa722a5b14 |
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font_02_sfnt_off0000fffd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFD | 10820 bytes |
SHA-256: 81b0f5ed438a6b19bf2cbfa88b515c78ca29770a52f911b7e2dd6bb724e3f27e |
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