MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and is flagged by ML classifiers and ClamAV as malicious. It also exhibits characteristics of a link farm, with numerous external URIs pointing to various domains, suggesting an attempt to direct users to potentially harmful sites. The presence of embedded JavaScript indicates a potential for exploitation or further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
Heuristics 7
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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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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://s-serviss.lv/userfiles/file/86150107757.pdf In PDF document text
- https://siltri.com/fck_upload/file/powulibidupimipipasakufa.pdfIn PDF document text
- http://sayarbobinaj.com/file/nidem.pdfIn PDF document text
- http://ideviceplus.be/app/webroot/files/userfiles/files/zawasi.pdfIn PDF document text
- http://open.ua/uploads/ckeditor/files/23174029417.pdfIn PDF document text
- http://registermycompany.in/admin/userfiles/file/26632211819.pdfIn PDF document text
- http://videlec.be/ressource/file/nejawopadunitej.pdfIn PDF document text
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/47462272717.pdfIn PDF document text
- https://eccdc.org/application/webroot/userfiles/file/35618743875.pdfIn PDF document text
- http://worshipedia.net/sites/default/files/file/wowuziti.pdfIn PDF document text
- http://muszempilla.com/files/file/11137638732.pdfIn PDF document text
- http://kuryakyn.ru/userfiles/file/dewamumezajo.pdfIn PDF document text
- http://otoform.com/upload/ckfinder/files/28652740835.pdfIn PDF document text
- http://rld-carbon.ru/file/71406835414.pdfIn PDF document text
- http://5m-tti.com/uploads/image/files/zoximotitezowovurozewoj.pdfIn PDF document text
- https://ofly.om-digitalsolutions.cn/upload/files/84337985043.pdfIn PDF document text
- http://paintmaster.hu/js/ckfinder/userfiles/files/gawab.pdfIn PDF document text
- http://christopherdallo.com/file/49552785971.pdfIn PDF document text
- http://lev-steklo.ru/userfiles/file/44502325605.pdfIn PDF document text
- http://partnercable.hu/files/22615144525.pdfIn PDF document text
- http://chayka-svg.ru/files/31716612323.pdfIn PDF document text
- https://xn--80aggmy8c6c.net/UserFiles/File/53811037610.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615d415019a88---68517094511.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=how+many+eyes+have+a+spiderPDF 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_off000110a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110A5 | 10768 bytes |
SHA-256: 8c8ff2a89dc50b85ae8de1fa65f428fdced8f9a4abab0e97c53df649088b2357 |
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font_01_sfnt_off00012935.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12935 | 19164 bytes |
SHA-256: 9a8f7ed1b5ab71f7ff75f267d4b29ac770b78fa56796d225ff1b5ac01ac0948e |
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font_02_sfnt_off00015a6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15A6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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