MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and embedded links pointing to various domains, suggesting a phishing or credential harvesting campaign. The presence of a raw IP address in a URI further increases suspicion. The document body is heavily obfuscated, preventing a clear understanding of its direct lure, but the overall structure and heuristic firings strongly suggest it is used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://wastran.ru/uplcv?utm_term=how+to+transfer+files+through+wifi+direct PDF link annotation
- https://envida-nieuws.nl/bsb_website/upload_fck/file/87076543850.pdfIn PDF document text
- https://www.sterlingsez.com/ckfinder/userfiles/files/57960912509.pdfIn PDF document text
- http://glassick.com/userfiles/file/faxakife.pdfIn PDF document text
- https://projetovm.com/uploads/files/nulatiwowama.pdfIn PDF document text
- https://zzhqhi.com/d/files/94072106921.pdfIn PDF document text
- https://zlatartopalovic.rs/files/7925151031.pdfIn PDF document text
- http://teleinwestor.pl/userfiles/file/61100718021.pdfIn PDF document text
- http://boilerservis.ru/uploads/files/99617485800.pdfIn PDF document text
- http://hwayinn.com/image/files/20210903_111636.pdfIn PDF document text
- http://tianlanlawyer.com/filespath/files/20210909173826.pdfIn PDF document text
- http://heatexchangersolution.com/upload_fck/file/2021-9-6/20210906190134807874.pdfIn PDF document text
- http://feach.ie/images/uploads/file/suzes.pdfIn PDF document text
- http://eco-building.cz/UserFiles/File/82336294005.pdfIn PDF document text
- https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/e287565313e19d40d9abc7aa04c35f7b/38673479608.pdfIn PDF document text
- http://178.62.148.222:300/ckeditor/ckfinder/userfiles/files/nevadulilig.pdfPDF link annotation
- http://shahnawazonline.com/uploads/files/68639931761.pdfIn PDF document text
- https://laatuwhuisweerstralen.nl/upload/file/70285023871.pdfIn PDF document text
- http://belniig.by/public/file/rariputojagozegapuvomap.pdfIn PDF document text
- https://zohopinler.com/calisma2/files/uploads/41094611673.pdfIn PDF document text
- https://xn--z4qq44i.tw/upload/actfiles/27286703974.pdfIn PDF document text
- http://sbriz.ru/userfiles/file/jinanofidivol.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/770e09660b7ef7a2c3b5e0dc0d4e3f81/begarabagosimivuxijul.pdfIn PDF document text
- http://elitaliaweb.it/upload/file/remizobedidipe.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_off0000db3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB3C | 10932 bytes |
SHA-256: cbbab7995f56cba2668bf726e5b5f82770d965cfd0f718ddb61c5e9df8b07376 |
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font_01_sfnt_off0000f449.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF449 | 19200 bytes |
SHA-256: 11c70b8779bf6c5aa62cbe1d32643bb1e3c591293468bf4238b29438bb1ff5a8 |
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font_02_sfnt_off00012623.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12623 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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