MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to other PDF files hosted on various domains. Several heuristics indicate this is a link farm, with some links pointing to compromised CMS upload storage. The ML classifier strongly suggests maliciousness. While no scripts were directly extracted, the structure and embedded URLs indicate a likely intent to redirect users to potentially malicious content or for SEO poisoning.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://www.advokat.com/app/webroot/img/fck/file/fofitisewazabuludepoxa.pdf In PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd3f91bef3---35507617707.pdfIn PDF document text
- https://actor-conseil.com/files/file/womimilamaronakulovaf.pdfIn PDF document text
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/8afdi0dspfqh195a0uo8th1evf/pabifozep.pdfIn PDF document text
- http://urbanconstructions.org/images/uploadedimages/file/1026195532.pdfIn PDF document text
- http://dui-antidote.com/images/userfiles/file/xapirojaxidawaxi.pdfIn PDF document text
- http://locthanhwindow.com/img_duhoc/files/wijumetimenazuzev.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5170f9c1c5---duratezirapijemedokawa.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/4e82c0669549a91d6637d97e3801efcb/lujamobozitawerat.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b72a52f0329---35567532952.pdfIn PDF document text
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/8a15cf5ec66dfd3468a3683418b46da4/97669941514.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/sng169inctnbl1hvov4c4dep11/58274356485.pdfIn PDF document text
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608551e4b776b---23344138611.pdfIn PDF document text
- http://domholidays.com/userfiles/file/gazexuno.pdfIn PDF document text
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e6969f9266d---59785905745.pdfIn PDF document text
- http://adveotec.com/img/file/24486871042.pdfIn PDF document text
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/72c60e6e8c56d87fd37d72d52c497208/90764512013.pdfIn PDF document text
- https://karapinarinsaat.net/userfiles/upload/file/tevera.pdfIn PDF document text
- http://quaint-house.com/rubedur.pdfIn PDF document text
- http://naturallabs.de/userfiles/file/vabezajopetedujiwu.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/d52d56c73d0ebf42086d1d0cf2d8c04f/31993921742.pdfIn PDF document text
- https://theshamrockpublecco.it/file/83044047522.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=amines+as+nucleophilesPDF 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_off0001096a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1096A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012181.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12181 | 10520 bytes |
SHA-256: 526cd5a2e64a91f0ed3f0b517ed2b43272123ad2f91640d2037b35e65c6320ca |
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font_02_sfnt_off00013933.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13933 | 17020 bytes |
SHA-256: cbd40b056e89f51151d2aff0944f57cd37c85377d43d8d9f29629fffcbebc9a6 |
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