MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm strategy, and the 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' firings strongly suggest malicious intent. The document body is heavily obfuscated and unreadable, but the presence of external URIs and the link farm structure point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://laborke.ru/uplcv?utm_term=lewis+structure+so42
- https://ip-kamera-rendszer.hu/ckfinder/userfiles/files/fimopifuwawipumuxelose.pdf
- http://dermalab.pl/userfiles/file/48120916010.pdf
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/a3c0510f60c54a3a8aecc8b5496b4b23/lerasofupamenidoguxaluko.pdf
- https://secolink.sk/userfiles/file/59679158095.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607991d257f16---99297406228.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/07014dbc71a65e3bb8a92677761ab811/67740417929.pdf
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/b604823d49d4d1d19cdc279a35425f9c/40783088541.pdf
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/dc9c6e9910550119fe01944b693d003c/40268334660.pdf
- http://www.houstonorientalrug.com/ckfinder/userfiles/files/33009773263.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/is0gro90blsjbrir9kjo7teb41/jatemovifexakisazox.pdf
- http://ixtvs.de/_upload_bilder/_filemanager/file/79439944542.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1bbe9ff38---39555679631.pdf
- https://eslms.com/userfiles/file/timurekurilabituraxen.pdf
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/77086741560a8e188ee2b0.pdf
- http://studiospazioambiente.it/userfiles/files/nufisumefasusaxerizubisal.pdf
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/c750f3ad8fab59bcc2396b295df2e88c/49319444628.pdf
- http://changrung.com/ckfinder/userfiles/files/povetukokewejizoli.pdf
- http://samrayburnclassof1980reunion.com/clients/873185/File/gemakawifugafadowimos.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086dd4125223---56994317832.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/aa43534deffaa68e2ea63d9619b7c893/wobakovazesulewati.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160c74a8f02776---3174826381.pdf
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091bfc750ced---dowajegalovazovoke.pdf
- http://alexlunacoach.com/img/editor/file/61114264746.pdf
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/7a57cc705491535c339bdfdc68e48156/78856415349.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_off0000c18b.bin1e283be799e35985349533d1efe57da517427d0be26eb9f3158f5075a6642e42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC18B | 16852 bytes |
font_01_sfnt_off0000edac.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDAC | 16792 bytes |
font_02_sfnt_off000105c3.bin5fe7862a42d49a9473e29b5d3a02d43dc84e6b5b15adfb2d9f5f7ce629f4498f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105C3 | 10252 bytes |
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