MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm. It embeds numerous external links, including one to 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Logarithm worksheet doc', suggesting a lure to disguise the malicious intent of redirecting users to potentially harmful websites.
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/wb?keyword=logarithm%20worksheet%20doc In PDF document text
- http://files.sajeevayoga.com/uploads/1/3/1/4/131408546/525d72501e01d.pdfIn PDF document text
- http://files.evolvemovementcollective.com/uploads/1/3/1/4/131437953/f1a435641851d.pdfIn PDF document text
- http://files.difrancosings.com/uploads/1/3/0/8/130873869/8207825.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://piviraxiwak.files.wordpress.com/2020/06/wusolegu.pdfIn PDF document text
- https://suzuwax.files.wordpress.com/2020/07/balajaful.pdfIn PDF document text
- https://jilizivi90208617.files.wordpress.com/2020/07/siwixodejomovise.pdfIn PDF document text
- https://bamaxev.files.wordpress.com/2020/06/27675784809.pdfIn PDF document text
- https://kegivisoxibu.files.wordpress.com/2020/06/kidopolazovowegodubis.pdfIn PDF document text
- https://xewowinupi.files.wordpress.com/2020/06/vigoxuxeganitananaj.pdfIn PDF document text
- https://migeleki.files.wordpress.com/2020/07/jepomibegorifew.pdfIn PDF document text
- https://gomumutuweno.files.wordpress.com/2020/06/40763800545.pdfIn PDF document text
- https://nitobowam.files.wordpress.com/2020/07/wigolatokanasujur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9072/2469/files/38268208260.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74731072541.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72966212333.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6003/5735/files/10292581866.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6649/1041/files/zirusegewavilirigarozovo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4959/8632/files/82689880226.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovutuku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9717/7768/files/88965395126.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8858/4605/files/34772531671.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000593b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x593B | 5100 bytes |
SHA-256: 8e7a3bcd3c0e3c0601799df2381a86a9ab1b5d800b444b584f856d173b0429aa |
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font_01_sfnt_off00006aa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA7 | 8752 bytes |
SHA-256: 250134cb3f9e528fad13c1195454ff6f2098451f8151f9950e0c29e3d2d77209 |
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