MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, and it contains embedded JavaScript. The PDF also acts as a link farm, directing users to multiple disposable domains, which is a common tactic for phishing or distributing further malware. The presence of embedded JavaScript suggests an attempt to execute malicious code upon opening the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
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 https://krisoc.ru/uplcv?utm_term=leaves+of+five PDF link annotation
- https://euchebnici.com/img/file/1329710463.pdfIn PDF document text
- http://zaun-produzent.de/userfiles/file/38089281341.pdfIn PDF document text
- https://pcparts.fr/ckfinder/userfiles/files/savavuv.pdfIn PDF document text
- https://vsevolozhsk.mebel18.com/uploads/files/96709595527.pdfIn PDF document text
- http://gsmontaggi.it/userfiles/files/sirakupikigiwogulijigol.pdfIn PDF document text
- https://eltechma.com/zdjecia/fck/file/80336164255.pdfIn PDF document text
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161420f4379972---18258892021.pdfIn PDF document text
- https://smg.bid/ckfinder_userfiles/files/ponamuritarukuxipasuxaja.pdfIn PDF document text
- http://carshopm.com/js/upload/files/70621018359.pdfIn PDF document text
- http://mediasingrid.com/js/new/fckeditor/userfiles/file/89991486776.pdfIn PDF document text
- http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/wijefomasudaluwonu.pdfIn PDF document text
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/66jt405kl2h8oa9anhh7i4hp55/26233651252.pdfIn PDF document text
- http://trunghungplastic.com/luutru/files/pajapuguzazunumemisux.pdfIn PDF document text
- https://www.sophrologue-nimes.fr/upload/news/files/88054756807.pdfIn PDF document text
- https://yennenga.org/business_school/uploads/file/pokis.pdfIn PDF document text
- https://artlabjo.com/userfiles/file/mivirozabijiwujad.pdfIn PDF document text
- http://zvaracskaskola.eu/editor_uploads/system/files/42602113652.pdfIn PDF document text
- http://pomodorolennep.de/gfx/userfiles/files/bifaz.pdfIn PDF document text
- http://lammermoor.net/imagenes/file/72386089408.pdfIn PDF document text
- https://whitesal.com/data/images/file/2571_20210928000129.pdfIn PDF document text
- http://dentalcenterstudio.it/userfiles/files/xozuxenulumop.pdfIn PDF document text
- http://ydtmuhendislik.com/ckfinder/userfiles/files/kitejuxojuzitegu.pdfIn PDF document text
- https://grdr.org/paidel/ckfinder/userfiles/files/16335361561.pdfIn PDF document text
- https://www.sesc-am.com.br/Selecao/ckfinder/files/bonepozoxilelo.pdfIn PDF document text
- http://besttailor.info/ckfinder/userfiles/files/pofogas.pdfIn PDF document text
- http://kfoodntea.com/dataroom/file/9565135948.pdfIn PDF document text
- https://gallerylingard.com/uploads/file/56487818323.pdfIn PDF document text
- http://primeasset.hu/fileok/file/11403542286.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_off0000b4cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4CC | 16808 bytes |
SHA-256: 52f3adb07a5f67fff043dde8e7bd73f724ae5154f22df204b931df6c14e7faf6 |
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font_01_sfnt_off0000dfb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFB2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f7c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C8 | 9884 bytes |
SHA-256: 059c4166825ad7b86afe608029645755e66bc6e97d217e2bfdba1c9a2f484b7f |
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