MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also contains numerous external URIs, many of which are part of a link farm on disposable hosting, indicating a phishing or redirection scheme. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://krisoc.ru/uplcv?utm_term=fk+file+commander PDF link annotation
- http://dansensvenner.dk/imagesfile///turalofebumosomasali.pdfIn PDF document text
- https://aukshanya.promosing.com/alpha/ckfinder/userfiles/files/xotigagugebivu.pdfIn PDF document text
- https://goacetours.com/ckfinder/userfiles/files/66678505507.pdfIn PDF document text
- http://rheumatology.institute/upload/content/file/defaxekezilawolabevi.pdfIn PDF document text
- http://skia22.ru/pic/file/tebimu.pdfIn PDF document text
- https://pnlcoach.com/misc2/file/In PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/7q9odiru0ulll3ig1cpvo0okp3/23804523332.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141624fa264d---paxegidatowemifapoxek.pdfIn PDF document text
- http://njxinbell.com/upload/files/fevixutudovofep.pdfIn PDF document text
- http://xn--80aap0abfiql8h.xn--p1ai/admin/ckfinder/userfiles/files/zuxigidugonojuluvaxu.pdfIn PDF document text
- http://valencia.thepokeluau.com/uploads/files/rerotulitakive.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/50822831745.pdfIn PDF document text
- http://associatedreclaimed.com/userfiles/files/77416951098.pdfIn PDF document text
- https://alkoplast.rs/files/41253403965.pdfIn PDF document text
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/batubasipavewetiropobo.pdfIn PDF document text
- http://eksternest.be/images/file/14406706800.pdfIn PDF document text
- https://www.babetravelling.com/ckfinder/userfiles2/files/worubidojavopudezugutum.pdfIn PDF document text
- http://jkbprivateiti.com/userfiles/file/48244366726.pdfIn PDF document text
- https://bedandbreakfastchia.it/userfiles/file/37728731394.pdfIn PDF document text
- http://escalierdurire.fr/ckfinder/userfiles/files/62643891461.pdfIn PDF document text
- https://novamakine.com/upload/ckfinder/files/fobavazofolujolese.pdfIn PDF document text
- https://anctools.com/ckfinder/userfiles/files/lolebutugijezokobilo.pdfIn PDF document text
- https://alakharia.com/public_html/userfiles/file/61252491784.pdfIn PDF document text
- http://jrmhandling.nl/upload/file/wafaromu.pdfIn PDF document text
- https://eatorhours.org/e-bussiness/fckimages/file/balelije.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_off0000bfc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFC1 | 18192 bytes |
SHA-256: ae56252fcac821ed8d9eda07f43e4a76d600ab44196236b6cb1cbe833a636cad |
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font_01_sfnt_off0000ece5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE5 | 10440 bytes |
SHA-256: 8fc4d05cac19320b5a673a16779be505ea63c1100f65d0db4b8a156b4083454d |
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font_02_sfnt_off00010472.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10472 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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