MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it is a callback phishing lure. Although no scripts were extracted, the PDF structure and embedded URIs suggest an attempt to redirect users to malicious content or solicit sensitive information through a phone-based scam. The presence of numerous embedded URLs, many pointing to potentially compromised or disposable domains, further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://juhaszautovill.hu/userfiles/file/jowevitokavofawunotewi.pdf In PDF document text
- http://bawaconstructions.com/editorData/file/93404354761.pdfIn PDF document text
- https://o2opr.co/userfiles/files/finabusiniku.pdfIn PDF document text
- http://tns-china.cn/editor_upload_image/file/kemavesirekedujirowudunip.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/e989c7219a0216427a0c5c0c2e386dfa/tulawaza.pdfIn PDF document text
- https://databaze-zdarma.cz/userfiles/files/88920991217.pdfIn PDF document text
- http://zopos.zohukum.com/ckfinder/userfiles/files/tedugukatel.pdfIn PDF document text
- https://smwebtechnology.com/arishayurveda.com/userfiles/file/26920976648.pdfIn PDF document text
- http://simonkuehner.de/gfx/userfiles/files/64167000058.pdfIn PDF document text
- http://rallyteamwalraven.nl/file/49193567075.pdfIn PDF document text
- http://www.pzkexie.com/up_files/file/rimajufenabasovimarakedib.pdfIn PDF document text
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615b03589725d---30745842601.pdfIn PDF document text
- http://dotbamboo.com/file_media/file_image/file/jonejubeleroz.pdfIn PDF document text
- http://xecuoihuyhoang.com/uploads/userfiles/file/67278015373.pdfIn PDF document text
- http://tavio.su/files/file/betukojida.pdfIn PDF document text
- https://aznamaste.com/ckfinder/userfiles/files/2810469844.pdfIn PDF document text
- https://nycsmindia.org/ckfinder/userfiles/files/sigodazekoputarimepoxu.pdfIn PDF document text
- https://logcabininn.me/nbloom/fckuploads/file/bivaguzomuvorirumede.pdfIn PDF document text
- http://geoplan.su/userfiles/file/69147786434.pdfIn PDF document text
- http://daedukgs.com/admin/fckeditor/data/file/20210902111129.pdfIn PDF document text
- https://cam-ceeds.org/ckfinder/userfiles/files/pibilamu.pdfIn PDF document text
- http://euromarkcreations.com/new/fck_img/file/54489516009.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=best+pdf+compress+online+to+2+mbPDF 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_off0000dde8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDE8 | 10932 bytes |
SHA-256: 859f9b113975e65ca6e35ffd9b6e0a14bec1e344297b6171909ec5f79e41da16 |
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font_01_sfnt_off0000f705.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF705 | 17524 bytes |
SHA-256: 8736ab79830c5809079178a2a67906aac70a78cc4c2f9d1eb90ef990ce4f7c39 |
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font_02_sfnt_off000123ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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