MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious or phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://philabc.ru/uplcv?utm_term=the+nutcracker+and+the+four+realms+full+movie+eng+sub PDF link annotation
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c618756e99a---sagotulugif.pdfIn PDF document text
- https://astek-telem.fr/userfiles/file/dolupesonumubemak.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/gm344f2ugb6pitq6r6nhrivtee/wuvoxisuko.pdfIn PDF document text
- https://takipcisec.com/calisma2/files/uploads/lubuxumefarokeluzug.pdfIn PDF document text
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc0a7e7930---35274692821.pdfIn PDF document text
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac620bbde6---kuxupukebowobubajapuduseg.pdfIn PDF document text
- http://studiogiovannone.com/userfiles/files/ganidogotamunoki.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c1a1b32aca6---94889568147.pdfIn PDF document text
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/2c12f0235bfb9269a5f40fd019c1d8a5/55669982578.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1608e422204dec---gixosaxiweveragu.pdfIn PDF document text
- https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/12556937477.pdfIn PDF document text
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/7827f7659b997e11eb09c6824fc07137/67449715896.pdfIn PDF document text
- http://bona-agra.pl/Upload/file/berokuwatukunolase.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/02rne9vsmplkuisljotb0rchfk/9628596129.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082e3f4d8216---womodobesasekawog.pdfIn PDF document text
- http://iphonedown.com/ckfinder/userfiles/files/vazanonakav.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/r70gno655smjpbo67j3uuaudiq/18470261281.pdfIn PDF document text
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609374ff39145---8680692824.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/8v0lfeku5dmc6mveltrqn61h6a/85390134497.pdfIn PDF document text
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16071a5bf691c6---23161514393.pdfIn PDF document text
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210613071456341790xgcbua.pdfIn PDF document text
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/ae5d3a273498af3edd9b0fbf199f6527/batuxubo.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609422f23beaa---52239112185.pdfIn PDF document text
- http://ronniejoymemorialfund.com/clients/1/1a/1a75100f29d804137a154ca93ef51a80/File/8748680620.pdfIn PDF document text
- http://hosungtour.com/FileData/ckfinder/files/20210529_27780A0824A1E51C.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad969700355---lopolokijijobidapi.pdfIn PDF document text
- https://investmentskillsgroup.com/images/userfiles/file/ponojaso.pdfIn PDF document text
- 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_off00010258.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10258 | 17928 bytes |
SHA-256: 2c0faedb53e226f5287b8afc34d4aaccadef29c765237a4e75f017c230008fd1 |
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font_01_sfnt_off00013115.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13115 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001492c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1492C | 11284 bytes |
SHA-256: b8befc4e02ab50b6992ba0d4a3ee14669bdae1851c5c7fc657ef537cef606bd8 |
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