MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. Heuristics identified it as a callback phishing lure, suggesting the document prompts users to call a phone number for fraudulent purposes. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://gruppopolidori.com/upload/image/file/756488925.pdf In PDF document text
- http://enotecagaribaldi.it/userfiles/files/vometufe.pdfIn PDF document text
- https://tomclarkvoiceovers.com/userfiles/files/likosedawemoleb.pdfIn PDF document text
- http://skncn.com/u/files/sosulokavuronobebefe.pdfIn PDF document text
- https://anpheatingandac.com/nbloom/fckuploads/file/36797929438.pdfIn PDF document text
- http://4bx.pl/public/file/gukefuvilalapuwuwunizon.pdfIn PDF document text
- http://baraanduliaptti.org/userfiles/file/12857996012.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/kavaxuwipetemeziwaponad.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16140c42f178a2---10312663101.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/d327c210463959a59de71cca0d706e4b/36141630129.pdfIn PDF document text
- http://caratow.nl/userfiles/file/zavopuk.pdfIn PDF document text
- http://uni-farm.pl/ckfinder/userfiles/files/66361790086.pdfIn PDF document text
- http://adirondackseafood.com/ckfinder/userfiles/files/xudizeviwi.pdfIn PDF document text
- http://archiw.gbpopatowiec.pl/img/upload/files/bewevatesebasixura.pdfIn PDF document text
- http://deleersnijder-bocaege.be/images/file/pijal.pdfIn PDF document text
- https://myclubowners.travelenvogue.com/userfiles/files/46333873832.pdfIn PDF document text
- http://irvine.songhakbbq.com/uploads/files/43605106389.pdfIn PDF document text
- https://iva-vietnam.com/userfiles/file/85910796033.pdfIn PDF document text
- http://robalton.es/Albums/images/file///pofakewode.pdfIn PDF document text
- http://swotaweb.com/img/upload/file/43228401404.pdfIn PDF document text
- http://houtackers.nl/userfiles/file/45568152675.pdfIn PDF document text
- http://sooam.com/files/fckeditor/file/49381079614978d62f2ca.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+get+extra+space+on+your+phonePDF 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_off0000b662.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB662 | 15496 bytes |
SHA-256: 236795cd064cafbbae4bd53207e320d00e4ae7dba252df1d340d1e944cff4158 |
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font_01_sfnt_off0000dd91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD91 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f5a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5A8 | 10908 bytes |
SHA-256: 73e6fd5b4d5f8a0cdd7fa899c6f7f44d5789ba3c761a2c3db7452b52232a6860 |
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