MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external URIs and link farms pointing to potentially compromised or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a malicious link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://ketchas.ru/uplcv?utm_term=all+apps+keep+crashing PDF link annotation
- http://opsir.eu/files/file/38585904459.pdfIn PDF document text
- https://iphastkala.com/userfiles/file/69981660256.pdfIn PDF document text
- http://chinalabware.es/d/files/wepasarivama.pdfIn PDF document text
- http://gammatradings.com/userfiles/file/zamivuvopak.pdfIn PDF document text
- http://gma.ge/admin/ckeditor/ckfinder/userfiles/files/19947721816.pdfIn PDF document text
- https://efficimm.fr/userfiles/files/sizugupujodaneliw.pdfIn PDF document text
- https://condicionamentofisico.com/arquivos/file/50431330580.pdfIn PDF document text
- http://centromedicoveterinarioadda.com/userfiles/files/gafenuligarejeririwokaxi.pdfIn PDF document text
- http://gugugroup.com/userfiles/33574491010.pdfIn PDF document text
- https://iqrainternationalschool.org/_assets/files/23715843763.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16134e1a0bfd68---novosaja.pdfIn PDF document text
- http://bibrka-school.org.ua/ckfinder/userfiles/files/xinewoxaf.pdfIn PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16130c97721727---22283595208.pdfIn PDF document text
- https://pirkitpadangas.lt/ckfinder/userfiles/files/rowulim.pdfIn PDF document text
- http://www.yoko-ono.be/images/userfiles/file/58311281038.pdfIn PDF document text
- http://bjaimama.com/data/upload/2021/09/file/202109190736097505.pdfIn PDF document text
- https://vidaleve.ind.br/ckfinder/userfiles/files/wirixeda.pdfIn PDF document text
- http://mynotary.ca/sites/all/sites/mynotary.ca/files/59359147250.pdfIn PDF document text
- http://kasaitogo.com/uploads/files/gatalonepesaroluwawanaxax.pdfIn PDF document text
- http://sanfrancescovet.com/userfiles/files/sibalerusa.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/0c7e2c4b13e2f97819a3f443961c27c0/zepidirevujeditekiwidis.pdfIn PDF document text
- http://www.florentmaussion.net/userfiles/File/38629219636.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_off0000d377.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD377 | 17016 bytes |
SHA-256: e1f98801e0d5328de18a7adfb04e83e15d7ad27fdbac8caa9620a809f0424577 |
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font_01_sfnt_off0000ff8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF8F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000117a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117A6 | 10508 bytes |
SHA-256: e48a98f0de13e4adb2237af172f1bda2f7e4b2f7d7cb24392a4720b20afa2378 |
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