MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The document's structure and embedded URLs suggest it is part of a link farm designed to redirect users to malicious content. The 'SE_CALLBACK_LURE' heuristic specifically points to a callback phishing or tech-support scam attempt, where the user is prompted to call a number. While no scripts were explicitly extracted, the presence of external URIs and the overall heuristic profile strongly suggest a phishing attack vector, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 6
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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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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://garglob.ru/uplcv?utm_term=bicycle+has+two+wheels PDF link annotation
- https://hunglivet.com/uploads/files/202109262356541518.pdfIn PDF document text
- https://borsalino.ro/imagini_ws/49532007462.pdfIn PDF document text
- http://briztravel.com/upload/files/2572359553.pdfIn PDF document text
- http://elard-group.com/ckfinder/userfiles/files/92049030345.pdfIn PDF document text
- https://larsonsvanservice.com/nbloom/fckuploads/file/99686602019.pdfIn PDF document text
- https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/guxabanomedu.pdfIn PDF document text
- http://twapp.freshkon.com/upload/files/27244430680.pdfIn PDF document text
- http://hflbdq.com/uploads/file/050849163994.pdfIn PDF document text
- https://inprovitcaribe.com/ckfinder/userfiles/files/80280812682.pdfIn PDF document text
- https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/41697297285.pdfIn PDF document text
- http://barahi.com/assets/userfiles/files/tituwenafiwoxalerov.pdfIn PDF document text
- https://mertlakustika.cz/images/pages/file/wegigubalaj.pdfIn PDF document text
- http://tmkb.org.tr/ckfinder/userfiles/files/faluxilusisitusimi.pdfIn PDF document text
- https://ww170001.linebot.net/upfile/files/20211004133416.pdfIn PDF document text
- http://topflexsports.com/uploads/15992065814.pdfIn PDF document text
- https://novinfasteners.com/userfiles/file/61167361811.pdfIn PDF document text
- https://floresdeserrezuela.com/aym_image/files/pajumupar.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155cb6b8ed90---jomewabaxofe.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16155baa298ffe---13763746927.pdfIn PDF document text
- http://ridendo.cz/files/file/pepezofovuxizadu.pdfIn PDF document text
- http://freeorden.com/media/file/4145806629.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_off00010317.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10317 | 19880 bytes |
SHA-256: 781df9470ebaa1fe81b8a306f436563294dcdb651ee04a17914e1b5589f45947 |
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font_01_sfnt_off000136ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136CE | 10376 bytes |
SHA-256: 1bd7918ad751254a17edbe21e29f0695bb0b5c8492f623ed2680d367f8ab223a |
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font_02_sfnt_off00014e8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E8A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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