MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains a link farm with numerous URLs pointing to PDF files, many hosted on compromised CMS upload directories. While no scripts were directly extracted, the nature of the links suggests a phishing or malicious content distribution scheme, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://barcelonacentromedico.es/files/galeria/files/27863062920.pdf In PDF document text
- http://aweibel.com/Photo/file/bixupajigefojujibeju.pdfIn PDF document text
- http://planao.com/ckfinder/userfiles/files/29074283533.pdfIn PDF document text
- http://mai-colle.jp/userfiles/file/34945933318.pdfIn PDF document text
- http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1606efc1895c2b---fuzotajovevo.pdfIn PDF document text
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083b2dd4b6d5---vebovuzeluzupowa.pdfIn PDF document text
- https://agrilaui.com/userfiles/file/53872477339.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/716aa95406a7162880924531f4d7d132/58404734371.pdfIn PDF document text
- http://ohana1bbq.com/uploads/files/13820260445.pdfIn PDF document text
- https://infotechloyalty.com/bot/ckfinder/uf/files/68452960948.pdfIn PDF document text
- http://stonestudio.pl/files/upload/file/52903288903.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16095c4cb486dc---misetexabeponesus.pdfIn PDF document text
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/oclvkrsjc54tntirk83nefr504/44438090009.pdfIn PDF document text
- https://247christianity.org/fckeditor/userfiles/file/695097908691621076189.pdfIn PDF document text
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16094a45f915c8---delubofaxudotedudevifis.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160e1336b77a19---52387102855.pdfIn PDF document text
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/8437c368a3f56b70fc1ea197149e1d70/buginuzimixe.pdfIn PDF document text
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/3ce6017f218e52edc30c7d982234bdd5/98434407182.pdfIn PDF document text
- http://csss77.com/clients/d/df/df7f2fdc42e243c7a03c192a8228c0be/File/13439353479.pdfIn PDF document text
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16086cd6fe6f39---19896329588.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160878d0eb410e---fikewofatolobelawu.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e386472ce---32962105775.pdfIn PDF document text
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb0ba94f1e6---46330683414.pdfIn PDF document text
- https://bandai-k.com/userfiles/file/84722470781.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=direct+vs+indirect+semiconductorPDF 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_off0000d66f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD66F | 10488 bytes |
SHA-256: fb365025d936cc3f3566bef42a36911720cc5fb264bfdcc1138727017b8c920c |
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font_01_sfnt_off0000ee55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE55 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010667.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10667 | 17452 bytes |
SHA-256: 924bbb51bc122ab55be92f80e06723fedee5e3c25c8fc552d54089a988a95788 |
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