MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute malicious content or engage in SEO poisoning. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent. No scripts were extracted, and the document body was unreadable, so the primary evidence comes from the URL heuristics and the ML model.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://dtpokebar.com/uploads/files/nazixinuzavigasolelodu.pdf In PDF document text
- https://khotelmarket.com/FileData/ckfinder/files/20210903_1904ED83DCDE1B6E.pdfIn PDF document text
- http://dpnovelty.com/upload/files/67912637285.pdfIn PDF document text
- https://synodradomski.pl/userfiles/file/bolanixudibobeje.pdfIn PDF document text
- https://alasclub.gr/neuro/ckfinder/userfiles/files/pajim.pdfIn PDF document text
- http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/76154081585.pdfIn PDF document text
- http://fsgpj.com/upfolder/e/files/20210916190500.pdfIn PDF document text
- http://zeroseistudio.eu/userfiles/files/19756259193.pdfIn PDF document text
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/e2a555706e7c492fa3173c6cdf7177b3/kiliveselunu.pdfIn PDF document text
- https://millvalley.com/wysiwygfiles/file/taloveveditevenuvedoki.pdfIn PDF document text
- http://niengrangchuyensau.com/upload/contentFile/file/33223127689.pdfIn PDF document text
- http://baocaosudanang24h.com/uploads/image/files/tusezafu.pdfIn PDF document text
- http://hasyo.net/files/file/90834203883.pdfIn PDF document text
- https://goodnest.info/tctt/sites/aaa/file/50023771193.pdfIn PDF document text
- https://songhong-thudo.com/img/files/61898791546.pdfIn PDF document text
- https://mabuksusu.com/contents/files/begulozexetipixiworer.pdfIn PDF document text
- http://cichanski.com/Upload/file/najimu.pdfIn PDF document text
- http://heibldr.hu/FCKfeltoltott/file/36140565380.pdfIn PDF document text
- http://matonaklawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lilekapobafusipazixukos.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613b159e8e140---90014022949.pdfIn PDF document text
- https://songiadahoaian.com/upload/ck/files/vidifimatu.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161304cf816239---63654156063.pdfIn PDF document text
- https://uleiuri.ro/userfiles/file/pureruwesubajo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=clouds+and+sheep+apkPDF 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_off0000d0c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0C4 | 19072 bytes |
SHA-256: 551e948728f411d255d3610f0eab070721d44eca198f53045b7d580098ee803c |
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font_01_sfnt_off00010174.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10174 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001198b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1198B | 10424 bytes |
SHA-256: 2347ffe2d1bd3797396763f92932a98875a5ae9c19173de7e4f1b5acdb8809ce |
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