MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. The heuristic firings indicate this JavaScript is likely used to redirect users to external URLs, as evidenced by the numerous PDF_URI and EMBEDDED_URL findings. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/a71f36fee411f5a38b0466d6f6071af9/junidilogemojadisugokali.pdf In PDF document text
- https://eguiders.com/uploads/viwum.pdfIn PDF document text
- http://refpecsbelvaros.hu/kepek/files/3967803947.pdfIn PDF document text
- https://floresdeserrezuela.com/aym_image/files/fudenofepevenudaw.pdfIn PDF document text
- http://customize.fr/fckeditor/editor/filemanager/connectors/php/img/Editor/file/55775497412.pdfIn PDF document text
- http://filtrydokoparek.pl/img/all/zudupigo.pdfIn PDF document text
- https://keralahappyjourney.com/ckfinder/userfiles/files/roxosemiladukuduwu.pdfIn PDF document text
- http://w3-japan.com/js/upload/files/7349031657.pdfIn PDF document text
- http://thomasgearon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/3032402678.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/webefade.pdfIn PDF document text
- http://kalikraft.com/images/file/24289419066.pdfIn PDF document text
- http://phamtrangia.com/upload/files/dabigotub.pdfIn PDF document text
- http://guoyangmoju.com/userfiles/files/kupegesokijimuwotewav.pdfIn PDF document text
- https://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/riweximibe.pdfIn PDF document text
- http://beta-rc.com/upload/files/85824803351.pdfIn PDF document text
- http://metall-press.ru/files/derosevafa.pdfIn PDF document text
- https://kermoulin.com/userfiles/file/febuxu.pdfIn PDF document text
- https://gifarlcm.com/upfiles/editor/files/sogubavevetuni.pdfIn PDF document text
- http://levakov132.ru/userfiles/file/4311313785.pdfIn PDF document text
- https://appvid.eus/userfiles/files/82065738840.pdfIn PDF document text
- http://bburago.info/admin/fckeditor/userfiles/file/lazevawudi.pdfIn PDF document text
- https://activepymes.com/pub/file/nepigu.pdfIn PDF document text
- https://bcm.es/files/galeria/files/5833582679.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=drive+deeper+full+movie+watch+onlinePDF 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_off0000f8c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C4 | 10972 bytes |
SHA-256: 771ad9d864c5c9218cd304d16faeaa0ff22628133396a1fb95beb81237d2cacb |
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font_01_sfnt_off0001120e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1120E | 19116 bytes |
SHA-256: 24177a36eccb6e87b7b428b0b6c40c1bdfa957a88ff3613d15d9ad8d8eb7b6d5 |
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font_02_sfnt_off00014307.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14307 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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