MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links to external resources, many hosted on compromised websites, suggesting it functions as a link farm or part of a phishing campaign. The presence of invoice-related language further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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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://flyags.com/editorResources/file///nifubadibarujudelilenuba.pdf In PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ed3fdaef6c.pdfIn PDF document text
- http://bajcsidavidfoto.com/_user/file/zufatanumepulitedisixiki.pdfIn PDF document text
- https://karapinarinsaat.net/userfiles/upload/file/gupabuxezipobogafubow.pdfIn PDF document text
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/sji2mblntqnf9t8t9mjk7l12ej/jujepejawerusegedemena.pdfIn PDF document text
- http://dxczx.com/ckfinder/userfiles/files/20210617_151958.pdfIn PDF document text
- http://biotop-zamosc.pl/userfiles/file/83850544624.pdfIn PDF document text
- http://tecresconsolidamentorestauro.it/fck_data/file/58058727262.pdfIn PDF document text
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/2c04a0dffc22312b35128e23755c79a2/vunomasovato.pdfIn PDF document text
- https://bda.ch/ckfinder/userfiles/files/dozup.pdfIn PDF document text
- https://zlatartopalovic.rs//files/47983596849.pdfIn PDF document text
- http://kasaitogo.com/uploads/files/9022613234.pdfIn PDF document text
- http://harc-ias.vn/Images_upload/files/wakuboladasugukajof.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a67258df4f6---89659888870.pdfIn PDF document text
- http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080603d5d4b6---73833743867.pdfIn PDF document text
- http://st-communications.com/ckfinder/userfiles/files/wapededigodineb.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608528d5d5788---62428239433.pdfIn PDF document text
- https://calmoinc.com/upload/editor/file/69468525478.pdfIn PDF document text
- http://aquatherm-graz.at/files/71697320554.pdfIn PDF document text
- http://ural-kip.ru/admin/ckfinder/userfiles/files/lipuxazobelumijimu.pdfIn PDF document text
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/86us26bfgro35f7bnvtipaj0ul/fomekid.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9f01fb540f---42503851465.pdfIn PDF document text
- http://jagodkaprzedszkole.pl/userfiles/file/82392351255.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=freelancer+exams+answersPDF 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_off0000fd7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD7B | 10244 bytes |
SHA-256: f4ca8fedcf98b40b7a8a472aea35821a27baac28b74c6efd94e02facaa199880 |
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font_01_sfnt_off00011482.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11482 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012c94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C94 | 17868 bytes |
SHA-256: e98071e3f1a2dab89756d88410031d6c0b66600438aff6d708fceb451cd6b610 |
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