MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ML classifiers and ClamAV, specifically flagged as Pdf.Phishing.Trojan. It contains embedded JavaScript and a large number of external URIs, many of which are on disposable or link-farm hosting. The embedded JavaScript likely facilitates the redirection to these external links, which are presented as download opportunities, a common phishing tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://queure.ru/uplcv?utm_term=download+minecraft+for+free+on+tablet PDF link annotation
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139f6ac5524b---18141464277.pdfIn PDF document text
- http://freeorden.com/media/file/ribalu.pdfIn PDF document text
- https://preciseenergygroup.com/media/22114735094.pdfIn PDF document text
- https://cissud.it/uploads/ck_editor/files/44214701972.pdfIn PDF document text
- http://directartdeal.com/uploaded_files/userfiles/files/tezixal.pdfIn PDF document text
- http://drivingschool-brno.eu/files/xukufijuniwalejibekit.pdfIn PDF document text
- http://edeins.com/userfiles/file/38770058205.pdfIn PDF document text
- https://democv.associasuite.com/imagenes/contenidos/files/26256308480.pdfIn PDF document text
- http://wolfpackbasketballacademy.com/content_docs/24879009130.pdfIn PDF document text
- http://svsteinfurth.de/radsportfiles/file/42017121977.pdfIn PDF document text
- https://corianderedmonton.com/ckfinder/userfiles/files/55349474051.pdfIn PDF document text
- http://sourceandsecure.com/uploads/userfiles/file/memuvivi.pdfIn PDF document text
- http://karaokejdi.com/ckfinder/core/connector/php/upload/files/lumurenib.pdfIn PDF document text
- http://shrlie.com/upload_fck/file/2021-9-6/20210906185310766764.pdfIn PDF document text
- http://daegyung.kr/userfiles/file/20210909193853.pdfIn PDF document text
- http://rockhouseschool.com/rockhouse/uploads/files/sipeseta.pdfIn PDF document text
- http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/77559460039.pdfIn PDF document text
- http://xn--3bsx3iw22bmot.com/filespath/files/20210910233554.pdfIn PDF document text
- https://matricula.arendic.cl/files/69174476651.pdfIn PDF document text
- http://etasystem.net/userfiles/files/putoxixeb.pdfIn PDF document text
- http://mstreatmentadvances.com/userfiles/files/15496693879.pdfIn PDF document text
- https://ijacr.net/assets_admin/ckfinder/core/connector/php/uploads/files/5825173228.pdfIn PDF document text
- http://landonintergroup.com/ckfinder/userfiles/files/13953048392.pdfIn PDF document text
- https://apexsafetyproducts.com/ckfinder/userfiles/files/pexifosokofexoligad.pdfIn PDF document text
- https://jamisonfurnace.ca/userfiles/files/62881124711.pdfIn PDF document text
- https://serwisnawigacji.pl/userfiles/file/xefidovugivuliriduzan.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_off0000b536.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB536 | 15688 bytes |
SHA-256: 92cc4759e07bbddead91642d797e8b8c37d4220ab1bec9b1da9ac73359502222 |
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font_01_sfnt_off0000dd51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD51 | 10696 bytes |
SHA-256: acb228e53a2362e453bcdbcede8011bbc4d906d4fb4637859314464939514284 |
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font_02_sfnt_off0000f5d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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