MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple embedded URLs that lead to known malicious redirectors and link farms, indicating a phishing or credential harvesting attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically brand-impersonation phishing targeting Chase customers. The document body, though heavily obfuscated, contains URLs that are consistent with the phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://pewovorawegoxuv.weebly.com/uploads/1/3/4/3/134351704/4308454.pdf.
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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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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://dafemum.ru/wix?keyword=platyrrhines+vs+catarrhines In PDF document text
- http://connexion-amelii.xyz/facebook_marketplace_mobile_phonesnneih.pdfIn PDF document text
- http://ita-fitness.fun/terjemahan_lagu_answer_love_myself7mzah.pdfIn PDF document text
- https://cdn.sqhk.co/lexuxeza/fQghgiA/ribadiponusunizogukapen.pdfIn PDF document text
- https://cdn.sqhk.co/gorokipo/j9Hiiah/space_racing_2_mod_apk_revdl.pdfIn PDF document text
- http://zijafanovidiz.sportsontheweb.net/la_riqueza_de_las_naciones_resumen.pdfIn PDF document text
- http://juponuziwotaga.mywebcommunity.org/73176713.pdfIn PDF document text
- http://baranaydin.org/hsbc_digital_secure_key_reviewswqgvu.pdfIn PDF document text
- https://pewovorawegoxuv.weebly.com/uploads/1/3/4/3/134351704/4308454.pdfIn PDF document text
- https://genezekanoz.weebly.com/uploads/1/3/1/4/131413678/fa65ede1f1070.pdfIn PDF document text
- http://xoroketogejuxe.mywebcommunity.org/94307913178.pdfIn PDF document text
- https://cdn.sqhk.co/fusexabuvej/igwjcCU/marvel_unlimited_plus_collectible_kit.pdfIn PDF document text
- https://cdn.sqhk.co/bebomopakax/igwFZjc/30598472697.pdfIn PDF document text
- http://mitatizizuje.mypressonline.com/9350016995.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://24a70dd4-b549-4b9e-9c0a-6eea45ab85ad.filesusr.com/ugd/ab0c63_f9495341932949d48497a6d6b7306f41.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/godewumazek/is_scrying_sheets_worth_it.pdfIn PDF document text
- https://2b08c346-38d8-4763-b559-bb9d4fff2313.filesusr.com/ugd/40c9d6_f4474b6adfbf45fb9373c7a71bb24fae.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lorifawuvawot/macbook_air_spreadsheet_free.pdfIn PDF document text
- https://917ed8d3-8a9f-4c5c-a3ad-554e533308ad.filesusr.com/ugd/a4e402_8f2e22ab883741349a47c104ae040331.pdf?index=trueIn PDF document text
- https://6cbe2f5c-748b-4bc6-b691-25a968a47885.filesusr.com/ugd/d6b5da_20167381646746a8a28b66bb63ba012a.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000135e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135E2 | 5052 bytes |
SHA-256: ece6a6c223142f002ddbea17c8eba46bb518fc1c176888839e18b86d5d7d5a76 |
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font_01_sfnt_off00014716.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14716 | 10656 bytes |
SHA-256: 7187ec2f871d66412822fb6d142c8b86342bf66ea68d3faf64e92b62b205a284 |
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