MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
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=kingroot+apk+free+download PDF link annotation
- https://sindhuinvestment.com/ckfinder/userfiles/files/pibonomadizidafopali.pdfIn PDF document text
- http://vaness-sens.fr/ckfinder/userfiles/files/45458600446.pdfIn PDF document text
- http://1night2day.com/ckupload/files/gulafowisexaluzokijamifef.pdfIn PDF document text
- https://celebicatering.com/upload/ckfinder/files/lizeru.pdfIn PDF document text
- https://stoneappeal.in/FCKeditor/file/winameguvomatediso.pdfIn PDF document text
- http://gesundezellen.com/neu/userfiles/file/tikadix.pdfIn PDF document text
- https://plentis.eu/ckfinder/userfiles/files/lawumevopenujuzuxixara.pdfIn PDF document text
- https://basisangka.com/contents/files/nubobadutuxedubixoro.pdfIn PDF document text
- http://hamdannepal.com/userfiles/file/2904792862.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/44594100341.pdfIn PDF document text
- http://jodhpurheritagewalk.com/images/file/ruxufovivepibovuruni.pdfIn PDF document text
- http://akpanlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sigun.pdfIn PDF document text
- http://zenobiacultura.it/userfiles/file///37078012077.pdfIn PDF document text
- https://giverny-bkk.com/upload/files/fowunixosuwuwoza.pdfIn PDF document text
- https://sanipro.ma/app/webroot/uploaderfiles/54147761651.pdfIn PDF document text
- http://nanjing.chinatupai.com/web/js/ckfinder/userfiles/files/wozogumifogabedikirizusep.pdfIn PDF document text
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/161509751270c6---wadotubolametawesarujoger.pdfIn PDF document text
- https://catequesisnavarra.org/guiarte_userfiles/files/xugowujojagu.pdfIn PDF document text
- https://adikketiga.com/contents/files/99431679039.pdfIn PDF document text
- https://skvely-kup.cz/files/file/97536163365.pdfIn PDF document text
- http://bangtaisay.com/uploads/userfiles/file/tifefo.pdfIn PDF document text
- https://beldapromosyon.com/calisma2/files/uploads/kurikituzisodibizofut.pdfIn PDF document text
- http://saxonrt.hu/img/userfiles/files/76063746386.pdfIn PDF document text
- http://tkhomedeco.com/assets/uploads/ckedit/files/20210925184740.pdfIn PDF document text
- https://baobiachau.com/luutru/files/78378447055.pdfIn PDF document text
- http://immopolignano.lu/images/noduku.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_off0000b140.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB140 | 10672 bytes |
SHA-256: b3b6ac3bab5d5796c46b1af34e1b398d9863361fb8bf668cd1fccc17fd5262c4 |
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font_01_sfnt_off0000c9ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9AB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e1bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1BD | 15412 bytes |
SHA-256: f4fa71d2b555cd92e19406b9cb69ae72b58a3f3b0e12eb61f3201b4f0ce2f23e |
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