MALICIOUS
106
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document that contains numerous embedded URLs, many of which point to PDF files on potentially disposable domains, indicating a link farm or redirection scheme. The 'SE_PAYMENT_REDIRECT_LURE' heuristic strongly suggests the document's content is designed to trick users into believing there are new or changed bank instructions, a common tactic in business email compromise attacks. While no scripts were extracted, the overall structure and heuristics point towards a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 5
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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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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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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://kurashi-kyoiku.com/cms/dat/upimg/file/57559301674.pdf In PDF document text
- http://jubangh.com/Upload/FckUpload/20210901file///39281214816.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613521a9dbfb8---dazusijogufimaxovosiz.pdfIn PDF document text
- http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/27408411176.pdfIn PDF document text
- http://topenglish.sk/app/webroot/gallery/files/65132176292.pdfIn PDF document text
- http://spamsmsgiare.com/media/ftp/file/90965158612.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613b8c830d3cc---pujedulebudelilakevalowu.pdfIn PDF document text
- http://esistore.be/userfiles/file/xepoworusetifixogasoja.pdfIn PDF document text
- https://zlataraburmevuckovic.com/files/69927715289.pdfIn PDF document text
- https://takitech.hu/userfiles/file/74862736740.pdfIn PDF document text
- http://lnyuanzong.com/uploads/files/20210911133254.pdfIn PDF document text
- http://aerotechgroup.ru/img/outer/files/95459336873.pdfIn PDF document text
- http://levant-tekstil.com/other_files/File/lidikuv.pdfIn PDF document text
- http://thoitranglani.com/upload/files/sigafodefifovojazixude.pdfIn PDF document text
- http://abhinavabhishad.org/userfiles/file/41692267204.pdfIn PDF document text
- https://cordovajewelry.com/images/file/43226770707.pdfIn PDF document text
- http://wx-bm.cn/upload/ckimg/files/202109130648196570.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1690f1874---pimedexutikevilefosediri.pdfIn PDF document text
- http://alocainghien.com/uploads/userfiles/file/misuzaza.pdfIn PDF document text
- https://airin.lv/images/userfiles/file/4808551415.pdfIn PDF document text
- https://4wheelchile.cl/admin/uploads/file/83509361929.pdfIn PDF document text
- http://zkqzl.com/uploadfile/file///2021090602054059.pdfIn PDF document text
- http://ud2-140.com/files/86914341599.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=sync+office+365+contacts+with+androidPDF 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_off0000e898.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE898 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000100aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AA | 18808 bytes |
SHA-256: 8af34e26af9840b53a53aceb92fb22bc19dcc053e0ad4e814b96ebd3e36ccb8e |
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font_02_sfnt_off0001316a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1316A | 11276 bytes |
SHA-256: ecf34d0c4698230034932048521476ea82cdde6818beab510ef39b173cc811f9 |
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