MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites hosting other PDF files. The ML classifier strongly indicates maliciousness, and the structure suggests a link farm designed to distribute further malicious content. The presence of multiple compromised CMS upload links reinforces the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16090c33b8055f---60288760918.pdf In PDF document text
- http://hncastlecable.com/d/files/fozopunuxe.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c4370fb4f50---xusoxebawimuzip.pdfIn PDF document text
- http://morard-mcf.fr/data/Files/7984954164.pdfIn PDF document text
- http://meble-tk.pl/userfiles/file/ronutefodudibujep.pdfIn PDF document text
- http://cautrucpalang.vn/webroot/img/files/satisizadawizeju.pdfIn PDF document text
- http://goldway.jp/upload/board/file/74916313947.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607aebec883f1---75606095346.pdfIn PDF document text
- https://wineuniverse.us/userfiles/file/fifibefokolopedoma.pdfIn PDF document text
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/23852fb4e0cadd78490494640448d1ef/62368664382.pdfIn PDF document text
- http://xn----8sbfeahwarn6ac1adp3fb2p.xn--p1ai/userfiles/file/sirumevo.pdfIn PDF document text
- https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/af6782bc6fc96954c2a662b5f5e02418/nazuzitixiramapiki.pdfIn PDF document text
- http://abwferrellpkwy.com/uploads/files/sitivuxozibazab.pdfIn PDF document text
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609dca37618d1---15068985221.pdfIn PDF document text
- http://flexa.cz/docs/file/zubidawukape.pdfIn PDF document text
- http://merwepizza.com/upload/file/96311829893.pdfIn PDF document text
- http://chamdure.com/DATA/files/vebezibexutose.pdfIn PDF document text
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076fa644e99a---51703631390.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a115d671380---bodumogevinerin.pdfIn PDF document text
- http://s-privod.ru/userfiles/file/70284911271.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=convert+lat+and+long+to+northing+and+eastingPDF 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_off0000f5a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5A2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010db4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DB4 | 18144 bytes |
SHA-256: 4002611f17a83eb029552f7447f83a1cf2c8dc1d072d1df3558bc8a1bd5fdb0c |
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font_02_sfnt_off00013d5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D5D | 10624 bytes |
SHA-256: 78d07f7c1b5ef30b51a75f10d1c94c81a2f15e77e1c8dc0756a0d4d40e4e45a0 |
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