MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating it is a link farm and a callback phishing lure. The document body is heavily obfuscated, but the presence of embedded URLs and the 'SE_CALLBACK_LURE' heuristic strongly suggest a phishing attempt. No scripts were extracted, but the PDF structure itself likely facilitates the phishing lure by presenting links or content that prompts the user to call a number.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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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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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://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161391e5857250---54086733732.pdf In PDF document text
- https://nawaasha.org/userfiles/file/pugob.pdfIn PDF document text
- https://produse-zilan.ro/files/rugumirirevut.pdfIn PDF document text
- https://people11people.gr/uploads/File/lonebetoximidexokuzan.pdfIn PDF document text
- https://baoyi-chuck.com/ckfinder/userfiles/files/15594951653.pdfIn PDF document text
- https://healthresearchinstitute.net/userfiles/file/salopibozuvomikaso.pdfIn PDF document text
- http://rubivina.com/Images_upload/files/51424363733.pdfIn PDF document text
- https://rowanmkt.com/Uploads/ckfinder/userfiles/files/39502152798.pdfIn PDF document text
- https://proxus.nl/file/loluzesuvi.pdfIn PDF document text
- http://goforthegreengolfpools.com/userfiles/file/salugibotejukeretumot.pdfIn PDF document text
- http://tahi.hu/ckfinder/userfiles/files/pedixabegananuzawuwuz.pdfIn PDF document text
- http://asr-net.ru/uploads/files/soran.pdfIn PDF document text
- http://chiari-web.com/ckfinder/optimist/files/pawirisul.pdfIn PDF document text
- https://cncunse.com/d/files/51867741259.pdfIn PDF document text
- https://bliznacite.dvsportbg.com/files/wunojekativamo.pdfIn PDF document text
- http://krakow4you.pl/krakow/files/zijamegatomatixomido.pdfIn PDF document text
- http://ky-auto.com/uploadfile/files/xegubaxi.pdfIn PDF document text
- https://worldmedglobal.com/userfiles/files/81662595978.pdfIn PDF document text
- https://tierlistei.ch/downloads/97758072731.pdfIn PDF document text
- http://glavis.biz/userfiles/file/677937835.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16144dfe59619f---dojewoviluduguxipozi.pdfIn PDF document text
- http://topbondtape.com/uploadss/file/regujiwiv.pdfIn PDF document text
- http://self119.net/upload/userfiles/2021/09/files/210919230736.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=48+acres+to+square+feetPDF 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_off0000b281.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB281 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA93 | 16752 bytes |
SHA-256: 7a002b120a58a6ab4def4db60e64ba094a93ebe03c48ec0acb1184fe1c264f31 |
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font_02_sfnt_off0000f50e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF50E | 10524 bytes |
SHA-256: 0d1ecf3ce834309ed83b737b6d7cc60a08f77b26d8a9df756840af0dfc020f3a |
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