MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body, though partially corrupted, contains a URL that points to a known malicious redirector. The presence of numerous embedded links, many hosted on seemingly benign platforms but pointing to potentially malicious destinations, suggests a social engineering attack aimed at luring users to external sites.
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=mathematical+relation+between+pdf+and+cdf In PDF document text
- http://files.guskampfans.com/uploads/1/3/0/9/130968988/nijolesejisow.pdfIn PDF document text
- http://files.globalmathcollaborative.org/uploads/1/3/2/6/132681452/2941180.pdfIn PDF document text
- http://files.maptco.com/uploads/1/3/1/3/131384208/tekiv.pdfIn PDF document text
- http://files.ischiareview.com/uploads/1/3/2/7/132740494/diwomebovekaju_gokak_xotiwaponiri_lawozuteliri.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/1/0428/9835/8432/files/nitopufekuriwuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6302/4542/files/valud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2076/0741/files/87780862596.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9714/6019/files/wobibowutal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8575/8617/files/free_denis_lapierre.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1367/5930/files/john_resig_thechive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7563/3306/files/40293325356.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4088/2340/files/mugitewigebazarojabojof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2611/9831/files/85464987272.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3179/6632/files/fuzugobawewositazufepena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0996/5212/files/pewefuguxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2707/1127/files/74223660759.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7723/7920/files/face_detection_algorithm.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3742/5813/files/metutigob.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_off000067a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67A9 | 5452 bytes |
SHA-256: 04a7def1b17c1a5403078cb318c4b8eb87335c84e3035d9a2c8adb2dbb6b5e37 |
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font_01_sfnt_off00007a24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A24 | 9900 bytes |
SHA-256: 5d75828a1993e08a63f56b65c0ea1b37696f907e36d09e96501af3ec394efcfb |
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font_02_sfnt_off00009c24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C24 | 16100 bytes |
SHA-256: c3461001ca888bed6954970c14d027cf202d908e5c0b8e175f896e5a236b6086 |
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