MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a high likelihood of malicious intent. The heuristics suggest it uses an image-only lure with an action trigger, a common phishing tactic. Embedded JavaScript streams and numerous external URIs point to the file's function as a downloader or redirector, likely attempting to deliver a second-stage payload or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://inwebjor.ru/uplcv?utm_term=disabling+ads+on+android PDF link annotation
- http://automsystem.com/UploadFile/file/20210902205508275.pdfIn PDF document text
- http://99hospitalitygroup.com/ckfinder/userfiles/files/46579626989.pdfIn PDF document text
- http://sqc.jp/user_data/editor/ckfinder/core/connector/php/upload/files/94900910400.pdfIn PDF document text
- https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/gubaf.pdfIn PDF document text
- http://kancelaria-perfect.pl/app/webroot/media/files/74130506034.pdfIn PDF document text
- https://shriayurvednagpur.org/public/ckfinder/userfiles/files/92208382409.pdfIn PDF document text
- http://kaitosushisb.com/uploads/files/81634228206.pdfIn PDF document text
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/51d7398b2b5486f43b96f3ffe973671b/12835892483.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/psi5hdbopt2kkv8tlvllfsmvml/nigexivawagaveteme.pdfIn PDF document text
- https://megashina24.ru/files/files/90653670736.pdfIn PDF document text
- http://tc-antey.ru/uploads/files/61965144096.pdfIn PDF document text
- http://stihoplet.by/upload/editor/files/sivufa.pdfIn PDF document text
- https://mots.alaxarxa.cat/cmsimple/images/file/42405268209.pdfIn PDF document text
- http://1137.jp/app/webroot/js/ckfinder/userfiles/files/jogivasemawedap.pdfIn PDF document text
- https://szabolcsipeter.com/userfiles/file/pinutimawufugolel.pdfIn PDF document text
- http://munsusa.org/userfiles/file/20210902140507.pdfIn PDF document text
- http://artediapharma.com/upload/files/15071551071.pdfIn PDF document text
- http://serramentisiciliano.it/userfiles/files/1970858955.pdfIn PDF document text
- http://25630638.kad.tw/kads/ckfinder/userfiles/files/mivugavumoluxawej.pdfIn PDF document text
- https://r4binsh4h9-att.com/contents/files/4230256690.pdfIn PDF document text
- http://sporteambiente.it/ckfinder/userfiles/files/65737150044.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_off0000ad80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD80 | 10332 bytes |
SHA-256: 32fc4e667710f254ded4a1754be0da28c37f0c87ac01f292f2d0e3ff8d71d2f4 |
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font_01_sfnt_off0000c499.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC499 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000dcab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCAB | 14092 bytes |
SHA-256: 4033e31aef38438804031b13cf0b9b47fea5030104b32a3505d7ff4166c5dac5 |
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