MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of phishing and containing numerous embedded URLs. The 'SE_CALLBACK_LURE' heuristic specifically indicates a callback phishing or tech-support scam pattern, where the document likely prompts the user to call a phone number. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious content or initiate a fraudulent interaction.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://barsugo.com/ckfinder/userfiles/files/nazopudejof.pdf In PDF document text
- http://rockpapersun.com/upload_mce_image/file/70302712415.pdfIn PDF document text
- http://www.scea.edu.mn/ckfinder/userfiles/files/97064822933.pdfIn PDF document text
- http://jeanthompson.nl/ckfinder/userfiles/files/bilaritowibiririfuwamus.pdfIn PDF document text
- http://tatvideo.ru/ckfinder/userfiles/files/66141268800.pdfIn PDF document text
- http://liavanhaeringen.nl/userfiles/files/noxuwawiwutidexatafo.pdfIn PDF document text
- https://camping-du-lac-dijon.com/userfiles/fichiers/4935096444.pdfIn PDF document text
- http://aroma-es.red/yamituki-n/uploads/files/wadipavafibolubab.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4e0abdc6a---fukirewedemezejupib.pdfIn PDF document text
- https://next-engineering.com/userfiles/files/sitojo.pdfIn PDF document text
- http://doremimarlikinsaat.com/userfiles/file/34639024619.pdfIn PDF document text
- https://curvy.tw/upload/files/30795468404.pdfIn PDF document text
- http://phrabat.net/UserFiles/File/3262134685.pdfIn PDF document text
- http://xycrusher.com/d/files/39250367989.pdfIn PDF document text
- http://lafenicealcamo.it/userfiles/files/30098460776.pdfIn PDF document text
- http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/2447103929.pdfIn PDF document text
- https://dakhoathienhoa.net/images/files/teguwotavumupitogakepit.pdfIn PDF document text
- http://aven.su/userfiles/file/vatofudiw.pdfIn PDF document text
- http://evrofurnitura.by/elax-furnitura.ru/uploads/files/43038812414.pdfIn PDF document text
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/78174129662.pdfIn PDF document text
- http://samarthservice.com/userfiles/file/topujarobotire.pdfIn PDF document text
- https://pensiunea-escape.ro/ckfinder/userfiles/files/neponadixixufulafamiwugot.pdfIn PDF document text
- http://icaalliance.org/filespath/files/20210906183304.pdfIn PDF document text
- http://elosc.com/upFile/file///ITX202109130421566404.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=cannot+install+facebook+messenger+on+androidPDF 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_off0000b315.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB315 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB2C | 11080 bytes |
SHA-256: c5fa29aedba08e611e6477fc6aefb23d29384d5508fb9d66d6308102f938836e |
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font_02_sfnt_off0000e4d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4D1 | 15312 bytes |
SHA-256: c12915ebe90479988140a40ea8e3e80066138fb615ecb9be7f2180ec5e75c09b |
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