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, exhibiting characteristics of a callback phishing or tech-support scam. The PDF contains numerous embedded URLs, many of which point to disposable hosting and are likely part of a link farm designed to obscure the true destination. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it is designed to deceive the user into initiating a fraudulent interaction.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://estudiowebcolombia.com/ckfinder/userfiles/files/70711265271.pdf In PDF document text
- http://balone.net/_upload/file///65950912778.pdfIn PDF document text
- http://lafiestadelmoto.cz/files/file/sipawojodunuweb.pdfIn PDF document text
- http://ipceurope.eu/assets/file/jagubepizotusetuxifamigo.pdfIn PDF document text
- https://cobrawire.com/userfiles/files/pedobivepez.pdfIn PDF document text
- https://newfrio.com/userfiles/files/gavesagobe.pdfIn PDF document text
- http://alfavs.eu/userfiles/file/99264091644.pdfIn PDF document text
- http://fabriziocar.it/userfiles/files/nixipewenepaxujupemenoge.pdfIn PDF document text
- http://christopherspubandgrille.com/userfiles/files/99486715047.pdfIn PDF document text
- https://locktactyuma.com/ckfinder/userfiles/files/68397785990.pdfIn PDF document text
- http://dungcucaytrong.com/images/files/78776526012.pdfIn PDF document text
- https://lentes123.com/aym_image/files/82404129723.pdfIn PDF document text
- https://rarahil.org.np/ckfinder/userfiles/files/pizujonibewuzelajuwigi.pdfIn PDF document text
- https://granitnet.hu/editor_up/gimawajovavumijonuwime.pdfIn PDF document text
- http://madmojo.com/fckupload/file/zusod.pdfIn PDF document text
- http://sport-zavora.cz/data/file/topewufusorizunozemarij.pdfIn PDF document text
- https://demircanticaret.com/userfiles/file/57590251699.pdfIn PDF document text
- https://www.q-jin.ne.jp/ckfinder/userfiles/files/sinuzodesag.pdfIn PDF document text
- https://delcinfo.ru/img/files/files/41474724477.pdfIn PDF document text
- http://ccsup.co.th/uploads/ckfinder/files/5004378916.pdfIn PDF document text
- http://www.naturhalles.fr/fckeditor/userfiles/file/44328077098.pdfIn PDF document text
- http://kurier48.pl/files/userfiles/file/virelip.pdfIn PDF document text
- http://baikalspring.ru/ckfinder/userfiles/files/zuremezipofepaduxuletu.pdfIn PDF document text
- http://webbuilders.com/files/file/xifabogizufusogop.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=jardin+botanico+helia+bravo+hollis+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_off0000b945.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB945 | 10912 bytes |
SHA-256: 43db83ba26621a5c764a1918693f74019a711b71151dc57e2158f1098481053f |
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font_01_sfnt_off0000d23a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD23A | 16520 bytes |
SHA-256: e328b114155373e29f8c6b8cb8d933de2929df5015552eb3c04223a90aa32295 |
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font_02_sfnt_off0000fccc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCCC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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