MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=t%25E1%25BA%25A1i+sao+m%25E1%25BB%2599t+s%25E1%25BB%2591+file+pdf+kh%25C3%25B4ng+m%25E1%25BB%259F+%25C4%2591%25C6%25B0%25E1%25BB%25A3c`. Additionally, a PDF link farm heuristic indicates the presence of numerous external links, with `https://cdn.shopify.com/s/files/1/0433/9276/2006/files/pedafutowux.pdf` being the first identified. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily corrupted, contains the same malicious URL and benign Shopify URLs, suggesting a lure to external content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://ttraff.ru/pify?keyword=t%25E1%25BA%25A1i+sao+m%25E1%25BB%2599t+s%25E1%25BB%2591+file+pdf+kh%25C3%25B4ng+m%25E1%25BB%259F+%25C4%2591%25C6%25B0%25E1%25BB%25A3c In PDF document text
- http://files.repaythis.com/uploads/1/3/1/3/131379443/9226f73fb.pdfIn PDF document text
- http://files.hoclincolnorders.com/uploads/1/3/0/9/130968933/bimubemilukez.pdfIn PDF document text
- http://files.jordonministries.com/uploads/1/3/1/4/131410094/demukuxilisu_duzit_vefafamiwinelo_nakanodi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9276/2006/files/pedafutowux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0785/2192/files/97913368236.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3311/6315/files/wagexuroguvobida.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5862/4672/files/13785921348.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8333/9678/files/mastering_elliott_wave_glenn_neely_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9722/6402/files/horizontal_list_html.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9074/7295/files/19261395665.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6404/1373/files/gosavofakatorelijusolix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7238/8246/files/90689897227.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9302/5183/files/42791733261.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4796/8149/files/kusubojexunujugurekin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/4455/7220/files/warhammer_40k_codices.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6149/1365/files/xamarin_studio_theme.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://scripts.sil.org/OFLIn 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_off00006b97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B97 | 6820 bytes |
SHA-256: c712209e4206b5ba7d29b38fd5a54eaf491ce47eb75f07aa0c3e549350973a8b |
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font_01_sfnt_off000080a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80A4 | 22648 bytes |
SHA-256: b4d6dfa0aa716a1e51c1a63b210de0793670a9cf9718f5340414d7945f5d5f97 |
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font_02_sfnt_off0000b142.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB142 | 16376 bytes |
SHA-256: 4954ddec54c61b6acc7eddbac306bc890d05f3afdfcf3ae890c7612da0a7d668 |
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