MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URLs, many hosted on compromised WordPress sites, suggesting it functions as a link farm or redirection mechanism. The PDF structure and embedded URLs point towards a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://irlanc.ru/uplcv?utm_term=diagrama+de+arbol+ejemplos+y+ejercicios PDF link annotation
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f129ec39a---1802679982.pdfIn PDF document text
- https://gulceoyunlar.com/calisma2/files/uploads/4959485604.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16088daf80fc75---zelewex.pdfIn PDF document text
- http://lakehighlandsrw.org/clients/863582/File/8943370676.pdfIn PDF document text
- http://caffepontoni.com/uploads/file/xixinolegalarana.pdfIn PDF document text
- http://plastikacz.cz/soubory/files/fubopijafibebi.pdfIn PDF document text
- http://perseverance.cyou/updatefiles/file/44866831628.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160862d3ee3940---tilazamev.pdfIn PDF document text
- http://jjmcp.jp/userfiles/Image/file/96332403771.pdfIn PDF document text
- http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/4c30enc26emj9tiiiesgsb87b5/73078696452.pdfIn PDF document text
- http://burchiellati.com/file_fck/file/nifov.pdfIn PDF document text
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610da0140e8ba---51086370426.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5bd6250ed---zurisukupefotegig.pdfIn PDF document text
- http://liveranigioielli.it/userfiles/files/miboxefojakopozexokok.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a785760e29d---62540970669.pdfIn PDF document text
- https://noblacklist.pro/web/img/podborky/files/20483534390.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a422c1d8fe9---21479217875.pdfIn PDF document text
- https://fontaine-eva.fr/userfiles/files/80669699918.pdfIn PDF document text
- http://phamtrangia.com/upload/files/35713195888.pdfIn PDF document text
- https://menu2uplus.com/images/file/51480406793.pdfIn PDF document text
- https://secolink.sk/userfiles/file/92364194804.pdfIn PDF document text
- http://northcity.rs/slike/files/busitup.pdfIn PDF document text
- http://nuitsdartistes.eu/images/file/80792481618.pdfIn PDF document text
- https://lecormier-menuiserie.com/www/upload/files/14708616710.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_off0000e086.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE086 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f898.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF898 | 17652 bytes |
SHA-256: 25c39db59da1a0a9b36bc8e869c875c508d3bb4825fa3a927cc565a3627e222d |
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font_02_sfnt_off00012553.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12553 | 11040 bytes |
SHA-256: 59681e274d6b8a37f74ee57d10df6da9f01a485f40fe3a7fb21665e6dc73b2cc |
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