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. It contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The PDF also acts as a link farm, pointing to numerous external URLs, suggesting a phishing or malware distribution attempt. The embedded JavaScript likely facilitates the redirection to these external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 6
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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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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://autoklej.pl/app/webroot/media/files/dilubunujepivanedima.pdf In PDF document text
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/pinamadurazumodabokata.pdfIn PDF document text
- https://media-get.ru/userfiles/files/11339643987.pdfIn PDF document text
- http://macierz-grodziec.org/files/file/metajozorifepumijitut.pdfIn PDF document text
- https://strings97.hu/userfiles/file/50724928978.pdfIn PDF document text
- http://pozitron-s.ru/userfiles/file/kunuwegutisikerifid.pdfIn PDF document text
- https://unaizahic.com/Files/files/febedikexodeduba.pdfIn PDF document text
- http://valkexclusief.reviews/app/webroot/files/userfiles/files/99471358854.pdfIn PDF document text
- http://xingyeknitting.com/userfiles/files/zekevurefuneji.pdfIn PDF document text
- http://ezclasssites.com/var/wwww/dev-ezclasssites-com/data/files/56806437831.pdfIn PDF document text
- http://cbstav.cz/file/35771015274.pdfIn PDF document text
- http://sevgineslianaokulu.com/ckfinder/core/connector/php/uploads/files/xedefinivukupub.pdfIn PDF document text
- http://aorganboys.handyfriendship.com/upload/files/15512201027.pdfIn PDF document text
- http://hanasushichoice.com/uploads/files/88978700144.pdfIn PDF document text
- http://2015.letnifestiwal.pl/ckfinder/userfiles/files/pivoxujitemera.pdfIn PDF document text
- https://kamarkosong.com/contents/files/devajinuxox.pdfIn PDF document text
- http://cana.vn/uploads/userfiles/file/ratede.pdfIn PDF document text
- http://j1medical.com/uploaded/file/45293947592.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/ae79kn8h1o5i9jlmlbf71c4agn/41085958453.pdfIn PDF document text
- http://asavn.vn/uploads/userfiles/files/mufivarovobomu.pdfIn PDF document text
- http://tsutae-f.com/js/upload/files/fidewapez.pdfIn PDF document text
- http://ccspatti.org/userfiles/file/71556416740.pdfIn PDF document text
- http://potentialdesign.cn/userfiles/file/1631589374.pdfIn PDF document text
- http://chuabenhxuongkhop24h.com/images/files/kibawiluzafu.pdfIn PDF document text
- http://walosports.cl/userfiles/file/koluropimibuvoluwegu.pdfIn PDF document text
- http://td-mg.ru/uploads/files/dakutizuwawagegisun.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=arithmetic+sequence+calculator+sumPDF 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_off0000c28c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC28C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000da9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA9E | 17560 bytes |
SHA-256: 09b14913fdf2c9232bacd7bca2776503318b2dc009ffb7c9b9592ba17b6f0080 |
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font_02_sfnt_off0001084b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1084B | 10720 bytes |
SHA-256: 61c17674c3b4d52de075f3b113d107a6604c3ccb4223295db4e48222ba0f6711 |
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