MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, with a high ML classifier score and ClamAV detection indicating malicious intent. The 'SE_CALLBACK_LURE' heuristic specifically points to a callback phishing or tech-support scam pattern, where the document likely prompts the user to call a number. The presence of embedded JavaScript suggests it may be used to exploit vulnerabilities or further facilitate the scam.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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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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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 http://huichem.com/ckfinder/userfiles/files/69452383832.pdf In PDF document text
- https://coaching-jk-academic.com/ckfinder/userfiles/files/70546996874.pdfIn PDF document text
- https://ourlady-schools2.com/userfiles/files/dijegosapadibobepulasiw.pdfIn PDF document text
- http://jatyn.cn/upfiles/202109/file/1630808835.pdfIn PDF document text
- https://butzbacher.turnpoint.jo/app/webroot/upload/files/migogibamanobajekezobufaj.pdfIn PDF document text
- http://gomientrung.vn/uploads/image/files/xavoxegugutixagizopidut.pdfIn PDF document text
- https://elitstroycraft.ru/source/file/43972875729.pdfIn PDF document text
- http://kiuanai.com/userfiles/file/denoxok.pdfIn PDF document text
- http://titadoorbinhduong.com/upload/files/potubosemitolivibinokilu.pdfIn PDF document text
- http://rosg.net/sa_upload/userfiles/file/20210913111956.pdfIn PDF document text
- http://scuderia512.com/js/upload/files/1560668050.pdfIn PDF document text
- http://ubytovani-budejovice.cz/picture/vtextu/file/59142342277.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ba498b102---tilizesisigujawasinubu.pdfIn PDF document text
- http://studiopol.it/userfiles/files/tagefowinigafo.pdfIn PDF document text
- http://tlw.ro/UserFiles/file/27393410065.pdfIn PDF document text
- http://5percent-design-action.com/upload/users/files/lupikibokel.pdfIn PDF document text
- http://gespk.com/userfiles/file/patuvawomuzepugo.pdfIn PDF document text
- https://tasleemdubai.com/userfiles/files/63847547980.pdfIn PDF document text
- http://www.ez4parcel.net/upfile/files/2021/09/09/57821573209.pdfIn PDF document text
- https://b2bircruise.travflex.com/bot/ckfinder/uf/files/xenipulixenapewuwijo.pdfIn PDF document text
- http://proallprint.com/userfiles/files/kamevuderowinatevisuwup.pdfIn PDF document text
- https://uclerbaklava.com/resources/file/gufepivitekesixaxozone.pdfIn PDF document text
- http://nelly-design.ru/upload/files/54150829881.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=shared+mailbox+outlook+androidPDF 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_off0000c409.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC409 | 10856 bytes |
SHA-256: 5238ff4f3a57eb4116a78bd480515fc6380bebc791c54176b7edd925a5403949 |
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font_01_sfnt_off0000dcdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCDF | 17380 bytes |
SHA-256: 81cabdbe26bab4b6b03d3da9d7ddfa8d1804385550ca3fe4baf564d2347a8476 |
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font_02_sfnt_off00010a38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A38 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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