MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. The presence of embedded JavaScript and external URIs suggests an attempt to download and execute further malicious content. The 'SE_CALLBACK_LURE' heuristic strongly indicates a callback phishing or tech-support scam, where the user is prompted to call a number for a fake issue.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 https://allytemp.ru/uplcv?utm_term=learn+english+speaking+android+app PDF link annotation
- https://ta-taiwan.com/app/webroot/userfiles/files/rubarulenupoxu.pdfIn PDF document text
- http://crmrealty360degree.in/ci/userfiles/files/71383469959.pdfIn PDF document text
- http://khiconghoixuancong.com/Khicong/admin/userfiles/file/davizaxikofelosiz.pdfIn PDF document text
- http://1day2night.com/UserFiles/file/90680842796.pdfIn PDF document text
- http://chronocertif.com/userfiles/file/xukabetomuboki.pdfIn PDF document text
- https://almondzwealth.com/administrator/imagetemp/file/9930654686.pdfIn PDF document text
- http://apsencollege.org/test/fckeditor/file/20222188421.pdfIn PDF document text
- http://shiinamotors.com/js/upload/files/pilokena.pdfIn PDF document text
- http://gramercygrand.ru/files/file/9201589984.pdfIn PDF document text
- http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/29338723891.pdfIn PDF document text
- http://thermcom.cz/userfiles/file/vevufawuvu.pdfIn PDF document text
- http://www.impactit.in/ckfinder/userfiles/files/43377766315.pdfIn PDF document text
- http://fotografiafrancescosomma.com/userfiles/files/15521112920.pdfIn PDF document text
- http://actybrain-consult.com/Upload/files/feratu.pdfIn PDF document text
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/sejevekujawozabi.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613f83cc36148---ligevezeb.pdfIn PDF document text
- http://dabaizhongxue.com/upload_fck/file/2021-9-4/20210904183435734564.pdfIn PDF document text
- http://bennett-legal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kuwuti.pdfIn PDF document text
- http://muszempilla.com/files/file/lebof.pdfIn PDF document text
- http://glamour-nsk.ru/ckfinder/userfiles/files/botixaduzazi.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c968edd590---dugomijinipovazux.pdfIn PDF document text
- http://lnshiyue.com/userfiles/file/20210912140118_1450833552.pdfIn PDF document text
- http://wildpflanzen-planung.de/file/mujupexutil.pdfIn PDF document text
- https://chiataiec.com/userfiles/Proj_Name/files/72589177060.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_off0000be66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE66 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d67d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD67D | 10624 bytes |
SHA-256: b358bb554c7b07bf4b7edb733cdcf739112c718aa3f74c12e06724b2a4da9306 |
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font_02_sfnt_off0000ee66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE66 | 15916 bytes |
SHA-256: 5631f246b155d2b1f09589563ed6e8a06640c9bd12111b12a432e994c433344d |
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