MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing lure. It contains numerous links to external PDFs hosted on compromised websites, suggesting an attempt to redirect users to malicious content. The presence of embedded URLs and the 'SE_INVOICE_LURE' heuristic further support the phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/d0574a096fcc4fe7bf041424186bcb94/tipajiromep.pdf In PDF document text
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0f22a0202---97520496305.pdfIn PDF document text
- http://pajurioverslas.lt/ckfinder/userfiles/files/78356446219.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210625094513773399453.pdfIn PDF document text
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160835c6c4d132---wazunafuje.pdfIn PDF document text
- https://karinbentum.nl/uploads/file/lejunidofakuj.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081bd4a811ce---28253569964.pdfIn PDF document text
- http://rltclassof1970.com/clients/8/8f/8ff9f19c840b982a6efda18ba8bb483c/File/jivotinalupinovukutesav.pdfIn PDF document text
- http://simonkuehner.de/gfx/userfiles/files/98047843728.pdfIn PDF document text
- http://emailreceptionist.net/userfiles/file/jukaxojesemolewemisuleg.pdfIn PDF document text
- https://pensionradvanice.cz/res/file/86443857565.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/45814a53ca91f415d35406dfbad6bdb7/47577032630.pdfIn PDF document text
- http://www.plain-pied.com/editeur/ckfinder/userfiles/files/tunamogalabanufuzu.pdfIn PDF document text
- https://aashianarealty.com/file/86880853757.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/i6lur47tjepb46ehgprqeu732n/98512827021.pdfIn PDF document text
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/p797ib8tl69230fqt52240a0tt/vikunuporas.pdfIn PDF document text
- https://zoorichi.com/temp/fckeditor/file/11910504733.pdfIn PDF document text
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/19e361e7f52fea7ce7003b649a040237/xoribebosesoka.pdfIn PDF document text
- https://eatorhours.org/e-bussiness/fckimages/file/14172488.pdfIn PDF document text
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/m3ejqesc5ps68p9bi4e5pe75qo/61195209221.pdfIn PDF document text
- http://acutecardio.ru/sadm_files/renijipilimemofo.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/279c989d36e74520bf5779d99800dd47/49988111028.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=tally+erp+9+full+entries+pdfPDF 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_off00010922.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10922 | 10716 bytes |
SHA-256: 8530f553c2e01af5b5631e66ecd7b45a586d73ae4bb325dc9933dbf811e2c7b7 |
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font_01_sfnt_off000121e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121E7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000139f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139F9 | 18028 bytes |
SHA-256: 248b3621e0dceda2c51350f21d9c10add5209806de0111b1227d4be002b58ab8 |
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