MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was flagged by ML classifiers and ClamAV as malicious, with specific heuristics indicating it's a phishing lure designed to trick users into calling a fraudulent phone number. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it's part of a phishing campaign, likely exploiting a vulnerability to execute further malicious actions. The presence of numerous embedded URLs, many pointing to potentially compromised sites, reinforces the phishing and potential exploitation vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 http://www.kowel.com/ckfinder/userfiles/files/1631816664.pdf In PDF document text
- https://wojczak.pl/userfiles/file/lizufoki.pdfIn PDF document text
- http://sbairs.com/datas/files/lasajada.pdfIn PDF document text
- https://fanaf.org/article_ressources/file/5377308075.pdfIn PDF document text
- http://www.motionmantra.com/userfiles/files/11988270121.pdfIn PDF document text
- http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/semibupakenirokabenowi.pdfIn PDF document text
- http://www.jucadent.es/ckfinder/userfiles/files/saribedadeg.pdfIn PDF document text
- http://zaintik.org/files/galeria/files/kutatataxosisikuxo.pdfIn PDF document text
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fab4b4e722---54957637926.pdfIn PDF document text
- http://gma.ge/admin/ckeditor/ckfinder/userfiles/files/35580862703.pdfIn PDF document text
- http://goopenapp.com/uploads/files/7309051381.pdfIn PDF document text
- http://skncn.com/u/files/543772722.pdfIn PDF document text
- http://n-production.com/upload/fckeditor/file/nowikesazebebanagi.pdfIn PDF document text
- https://safecampus.in/cmsCart/upload/file/16585891512.pdfIn PDF document text
- http://jrecchina.com/ckeditor/ckfinder/userfiles/files/pijedepotebidegomoz.pdfIn PDF document text
- https://transilvaniafishing.ro/app/webroot/files/userfiles/files/79537530309.pdfIn PDF document text
- https://mariapolis.es/ckfinder/userfiles/files/witodenidex.pdfIn PDF document text
- http://christopherspubandgrille.com/userfiles/files/migoriremeluruposizar.pdfIn PDF document text
- http://angelojrobles.com/admin_initial_test/userfiles/file/4994445371.pdfIn PDF document text
- https://etevent.itweald.com/uploads/files/6138df39ea32c.pdfIn PDF document text
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/37d0eb8c4b728263faebf935a8d9a24b/11705372935.pdfIn PDF document text
- http://costruzionibulagna.it/userfiles/files/xepewuvagisufug.pdfIn PDF document text
- http://brandnewgoods.net/userfiles/file/68803958445.pdfIn PDF document text
- https://phu-komplex.pl/pliki/file/14354252985.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=suzuki+violin+volume+11+pdfPDF 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_off0000c490.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC490 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dca2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCA2 | 18988 bytes |
SHA-256: 11d4b9032d901960133f5e8b59c6101c40b987ff0c7dc8c78ad5a3bdf6eaedb4 |
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font_02_sfnt_off00010eeb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EEB | 10576 bytes |
SHA-256: 9e341e9ae44ce0c45248aeac52a908d271709e820a06f5de407280319737b203 |
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