MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1190 Exploit Public-Facing Application
The PDF contains embedded JavaScript and multiple external URIs, indicating it is designed to interact with external resources. The 'SE_MFA_LURE' heuristic strongly suggests a credential harvesting attempt, likely by tricking the user into approving a one-time code or MFA prompt. The ML classifier and ClamAV detection further support its malicious nature, classifying it as a phishing trojan.
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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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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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://infrive.ru/uplcv?utm_term=how+do+you+connect+a+tablet+to+a+printer PDF link annotation
- http://100tmt.com/uploadimage/files/20210905081705.pdfIn PDF document text
- https://kamwalibais.com/userfiles/file/viwotopagubejenaloxetese.pdfIn PDF document text
- http://bangdinhphucat.com/quangbasanpham/app/webroot/upload/image/files/26863768920.pdfIn PDF document text
- http://eurolocal.info/sites/default/files/images/file/47627166218.pdfIn PDF document text
- https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/14419277842.pdfIn PDF document text
- http://thuonghieutoancau.vn/uploads/files/69797845049.pdfIn PDF document text
- http://zenobiacultura.it/userfiles/file///16933365459.pdfIn PDF document text
- http://sadiqandsons.com/userfiles/files/54390368065.pdfIn PDF document text
- http://ddaengshop.com/ckupload/files/83586165428.pdfIn PDF document text
- http://vuoncotichdep.com/upload/files/disovipiremojaxafolefaxuf.pdfIn PDF document text
- https://toptenstudy.com/upload/files/BodyFile__613B5E5D1B1BD.pdfIn PDF document text
- http://sprinter-lab.ru/content/File/51496302353.pdfIn PDF document text
- http://e-motyle.natura2000.pl/imgturysta/files/fatavuxererezifate.pdfIn PDF document text
- http://mn-print.ru/ckfinder/userfiles/files/5927831183.pdfIn PDF document text
- https://ebooksweb.net/files/file/sodoviguzelek.pdfIn PDF document text
- http://magic-mugs-factory.com/uploadfile/files/2338749535.pdfIn PDF document text
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/5f94b58e72744366c47bd95594d47ed3/17295679879.pdfIn PDF document text
- http://iccjsc.vn/images/uploads/files/xumesudezididi.pdfIn PDF document text
- https://www.renfrewareahealthvillage.ca/ckfinder/userfiles/files/23177905633.pdfIn PDF document text
- http://saveursetsavoirs.fr/image/file/20086237458.pdfIn PDF document text
- http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/toviwoluvafonota.pdfIn PDF document text
- http://sunpix.ru/img/lib/file/41412168125.pdfIn PDF document text
- http://szkolaprywatnaleszno.pl/userfiles/file/jakevixulewekibatezezo.pdfIn PDF document text
- https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/15721045254.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_off0000d613.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD613 | 16556 bytes |
SHA-256: cfe31bd731325eb1836d01ffc3a076ad5531c947386cc75e6291d0772e07ea10 |
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font_01_sfnt_off0001010a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1010A | 10772 bytes |
SHA-256: 9ee821d3d55d2e8bdea9bd0e631d12dad07acdb0ceca4df002c24c5321f7a299 |
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font_02_sfnt_off000119bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119BD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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