MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm hosted on compromised CMS upload storage, suggesting it directs users to potentially harmful websites. The document body was unreadable, but the presence of numerous unknown URLs points towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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 http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613882e01a4ac---taxonejebowagag.pdf In PDF document text
- http://bagiez.de/userfiles/file/sonifuf.pdfIn PDF document text
- http://myflora888.com/ck_files/files/37338024852.pdfIn PDF document text
- https://ikansambel.com/contents/files/wajerabunovexol.pdfIn PDF document text
- http://zygzak.eu/foto_dane/wysiwyg/File/25502056383.pdfIn PDF document text
- http://hawaiisushi.iorderfoods.com/uploads/files/sokujagak.pdfIn PDF document text
- https://eventaipei.com/upload/files/57757078893.pdfIn PDF document text
- http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/202127186.pdfIn PDF document text
- https://equinox-e.com/upload/files/69601341473.pdfIn PDF document text
- http://e2ingenieros.com/ckfinder/userfiles/files/vixodemowozugimuxifilek.pdfIn PDF document text
- https://ycb.one/pro_pic/files/voser.pdfIn PDF document text
- http://world-green-hope.com/uploads/files/vusaremulevizugaro.pdfIn PDF document text
- https://h1t-urlaurora1-turbo.com/contents/files/sebijipufof.pdfIn PDF document text
- http://h-p-n.fr/catalogue_dynamique/file/jekexemapeza.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614bc94446449---46340292190.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614fa2adf0c11---32619239384.pdfIn PDF document text
- https://adium.ru/userfiles/file/74499741482.pdfIn PDF document text
- http://heldermusic.nl/ckfinder/userfiles/files/22716446662.pdfIn PDF document text
- http://orthocarecentroortopedico.it/userfiles/files/bogaxewizoxut.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136a415d8700---fanubilopud.pdfIn PDF document text
- https://venus-forever.com/image/files/ganisoxiwapulujowo.pdfIn PDF document text
- http://cn-biyoute.com/d/files/27263093865.pdfIn PDF document text
- http://fpempresa.cen.es/userfiles/files/22511734045.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=kant%27s+categorical+imperative+principlePDF 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_off000187f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x187F1 | 10808 bytes |
SHA-256: b7006030ff72a262e63810be386fab28584b6944eae1324cca4812d4425b07fb |
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font_01_sfnt_off0001a0e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A0E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001b8fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B8FB | 21068 bytes |
SHA-256: 851f71ecc93d05eba274a39783abd9e515a13ff354ab1f398735dae3b88af059 |
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