MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a PDF containing embedded JavaScript and multiple external URIs, flagged by ML classifiers and ClamAV as malicious. The heuristics indicate it functions as a link farm and a callback phishing lure, directing users to potentially malicious websites. The presence of embedded JavaScript suggests an attempt to exploit vulnerabilities or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://philabc.ru/uplcv?utm_term=password+manager+reviews+android PDF link annotation
- https://indicaperu.com/userfiles/file/tuguzapoxifovaxuveb.pdfIn PDF document text
- http://caydinhlang.net/userfiles/image/file/16278367947.pdfIn PDF document text
- http://alrabbancapital.com/file/files/71975710435.pdfIn PDF document text
- http://buydecor.ru/uploads/files/36924136593.pdfIn PDF document text
- http://www.jacenter.org/js/ckfinder/userfiles/files/2201388594.pdfIn PDF document text
- https://sklepbonus.pl/userfiles/file/guvefuxozelasexe.pdfIn PDF document text
- https://bfull.ru/uploads/files/455765181.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/10185159190.pdfIn PDF document text
- http://electronicaindex.nl/images/uploads/1298985828.pdfIn PDF document text
- https://piauiaqui.com/ckfinder/files/78157382978.pdfIn PDF document text
- http://azbuka-d.ru/ckfinder/userfiles/files/79267573752.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16142133f9085e---29612628048.pdfIn PDF document text
- http://daedukgs.com/admin/fckeditor/data/file/20210908004942.pdfIn PDF document text
- https://photojet.net/userfiles/file/kefedasifapigogegalev.pdfIn PDF document text
- https://democv.associasuite.com/imagenes/contenidos/files/51557374591.pdfIn PDF document text
- http://china-baby-clothes.com/d/files/81811739792.pdfIn PDF document text
- https://pingthye.com/userfiles/files/xarelodara.pdfIn PDF document text
- https://drgcode.managenet.ro/images/file/gakaguzaseketugobimu.pdfIn PDF document text
- http://alhouti.com/userfiles/file/mujegosiriju.pdfIn PDF document text
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612f3ec59b554---72651649747.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_off0000ed53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED53 | 10600 bytes |
SHA-256: 3936e20cd847ed344c05055e79f70e91981f28516c0a67f56282a4e8ae09d924 |
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font_01_sfnt_off00010560.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10560 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011d72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D72 | 17956 bytes |
SHA-256: 93a959938ab7c4a757bf6add0ebd2cbfa3bb3f91fbb63f57d642c63f72ef8fb2 |
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