MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to compromised websites, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and heuristics identified it as a link farm on disposable hosting. While no scripts were explicitly extracted, the nature of the embedded links suggests an attempt to exploit vulnerabilities or deliver further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://medvor.ru/uplcv?utm_term=cow+ran+away+with+the+spoon
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/p2mvos1u1m734sg64npuli8dn8/75201563730.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/33b74ca3d8221d804830a8bf8eb6e9ba/tunepakitijijafiluranor.pdf
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d40316125a---xutamapis.pdf
- http://ehsclassof64.com/clients/b/bf/bfa5c4411462ceee4a19e543862d902c/File/gajikejirekezuxiwinafeza.pdf
- http://hndgyl.com/v15/Upload/file/2021626227313547.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba9a487b31---varezubusuxusedogani.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089b86c57440---tifofuzuza.pdf
- https://glbtrader.com/userfiles/file/4651735273.pdf
- http://mhs69indians.com/clients/864804/File/27973643608.pdf
- http://topas.lt/userfiles/file/dilokumuvoviboluvofoxuwe.pdf
- http://auksozvynas.lt/userfiles/file/93727099828.pdf
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d027852caf6---jebaje.pdf
- http://ukrainski-rosyjski.pl/userfiles/file/vobazikikarutexawivufa.pdf
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9f1fe8b40---redaxesopexutuvaleb.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f440caacc---loxideramosovaxile.pdf
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/1e2ef2fe683cae5422f5f494880c6291/27175777346.pdf
- http://backkwang.com/userData/board/file/62245882463.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/1d17b0a4f3681156de4f93475cc439af/bikezemuzegubugofibi.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b5a5c487b46---84496778343.pdf
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/a3b3eba78859f177f4acd8643e690ad0/90742314988.pdf
- http://akicgiyim.com/userfiles/file/36754749838.pdf
- http://aczelzalog.hu/tmp/fukixotaruvoxasawunufe.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd8946bf1e1---vuturisezudobejozilasafu.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b0240bfc4---50691318387.pdf
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab5cbc89360---sesasizozitak.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e44c.bin6650154a074c99887b9643cc33354b425582f5c4263bce59ac212d7d05e4a457 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44C | 10532 bytes |
font_01_sfnt_off0000fc55.bincadb5081fb23af6bffbce005f0648dca2acc13f9647e6961528333429e0d112f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC55 | 18544 bytes |
font_02_sfnt_off00012b16.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B16 | 16792 bytes |
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