MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for executing malicious code. The presence of numerous external URIs, many of which point to disposable domains, indicates a likely phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://icmasistemas.com/userfiles/files/jerudegi.pdf In PDF document text
- https://hsse.hssanesteban.cl/files/13326183083.pdfIn PDF document text
- http://livestocktool.com/d/files/lesigulomo.pdfIn PDF document text
- https://cambodiadriverservice.com/userfiles/file/1696870450.pdfIn PDF document text
- https://isigakizima.net/img/tmp/file/20167757500.pdfIn PDF document text
- http://njxinbell.com/upload/files/kedud.pdfIn PDF document text
- http://jualumnitoronto.com/editor/uploadfiles/50992467180.pdfIn PDF document text
- https://es21sys.com/userfiles/file/35923776575.pdfIn PDF document text
- https://gelblighting.com/userfiles/files/3784084392.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130d664a69f2---37534412168.pdfIn PDF document text
- https://mygrind.ie/userfiles/file/3472882168.pdfIn PDF document text
- https://tktravelkorea.com/FileData/ckfinder/files/20210912_9E6F0091E415C2FA.pdfIn PDF document text
- https://www.prshots.com/ckfinder/userfiles/files/vudil.pdfIn PDF document text
- http://fli.edu.mn/ckfinder/userfiles/files/mutogabagavewilulivivusis.pdfIn PDF document text
- http://xinge168.com/uploads/files/20210914151052_595649.pdfIn PDF document text
- http://egitara.com/upfiles/files/kasigaxosaluwutuwotop.pdfIn PDF document text
- http://recrute.fr/files/files/55316464386.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/bopaperejadeza.pdfIn PDF document text
- https://burragebrothers.com/demo/jolie/beta/userfiles/files/jojabokolurise.pdfIn PDF document text
- http://ibtaker.ps/userfiles/file/vivewuxabama.pdfIn PDF document text
- http://bonaparte-kerkrade.nl/fckeditor/ckfinder/userfiles/file/98388781160.pdfIn PDF document text
- http://women-for-marriage.com/ckfinder/userfiles/files/21709454557.pdfIn PDF document text
- http://acupunctuuryao.nl/ckfinder/userfiles/files/kikudofizokape.pdfIn PDF document text
- https://minervatech.work/js/ckfinder/userfiles/files/lotiw.pdfIn PDF document text
- http://boldogelet.hu/media/53050860431.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=lock+screen+live+wallpaper+app+downloadPDF 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_off0000dc8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC8E | 17096 bytes |
SHA-256: dd06d73322c6566b788a6872fed20faf6934a2402b5d4b4c4b8e786a2cec38ca |
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font_01_sfnt_off000108e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108E7 | 10608 bytes |
SHA-256: 17085567c9e782bc8b693096695ce61f4e4f4aa32b2d8067c3a8287cbc4c535e |
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font_02_sfnt_off00012145.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12145 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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