MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, and exhibits characteristics of a phishing lure. It contains numerous embedded URLs pointing to potentially compromised websites, suggesting an attempt to redirect users to malicious content. The presence of these links and the 'invoice/payment lure' heuristic indicate a phishing attack, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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 http://fratellilongoni.com/userfiles/files/lemakexofuza.pdf In PDF document text
- http://www.contal-farmer.com/uploads/files/gevodu.pdfIn PDF document text
- http://weifong.tw/fckimages/file/tigidewotapezodigisusos.pdfIn PDF document text
- http://occahomesearch.com/userfiles/files/93912392992.pdfIn PDF document text
- http://say-international.eu/userfiles/file/18857054494.pdfIn PDF document text
- http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/fegiwogovalagogufo.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/9c1ac76f49d5980851a49212745e7661/jerosuwokigesigozuxab.pdfIn PDF document text
- http://www.dawnrotaryclub.tw/UserFiles/files/bunega.pdfIn PDF document text
- http://sendedianqi.com/upload_fck/file/2021-9-3/20210903215838430620.pdfIn PDF document text
- http://erex.hu/upload/file/mufosokaxizimuz.pdfIn PDF document text
- https://madeirashopping.com/userfiles/file/19739136655.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613154bf8d4b2---ravodewuvegovajijor.pdfIn PDF document text
- http://dooroc.com/tk/upload/file/33627646754.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/sexutetuvisumesaji.pdfIn PDF document text
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137955be9c74---69551733082.pdfIn PDF document text
- https://unovosti.tv/ckfinder/userfiles/files/betekenejaxazani.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613adbc4911e4---31501876643.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614125dd89827---dewesogarolulazeremoriv.pdfIn PDF document text
- http://coomargroup.com/ckfinder/userfiles/files/26313734002.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=access+to+private+account+instagramPDF 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_off0000d8c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C5 | 18764 bytes |
SHA-256: c074bf9bd30feafb84a724e53b9e731bbbb49eba7e34d3a62232693b979a9e1f |
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font_01_sfnt_off0001092e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1092E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012145.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12145 | 10816 bytes |
SHA-256: 4a0f467c97b728256be72f571e5cca0633c83d83facfb7d81c56de2339d76bc0 |
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