MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.ru/pify?keyword=general+mathematics+101+pdf. The document body, though heavily obfuscated, also contains this URL and numerous other links to what appear to be benign PDF files hosted on Shopify, likely part of a link farm to improve search engine ranking for malicious content. The primary intent appears to be redirecting users to malicious infrastructure.
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=general+mathematics+101+pdf In PDF document text
- http://files.immune-tolerance.fr/uploads/1/3/0/7/130739022/ca2378255.pdfIn PDF document text
- http://vevogeli.stokolvision.com/uploads/1/3/0/7/130776407/cb353b4.pdfIn PDF document text
- http://files.shawnhurleyministries.com/uploads/1/3/1/4/131406068/fuburorotisil_fesojewakatak.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/4485/5195/files/freckle_juice_chapter_3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2412/0997/files/34730243405.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1863/3894/files/33353258208.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/1933/2766/files/alimentacion_escolar_saludable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5975/7727/files/how_do_you_convert_to_word_document_on_mac.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4722/3458/files/zudatijoledozojibokubutav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5099/0753/files/2356936437.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9717/7768/files/oxford_wordpower_dictionary_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5117/9416/files/fawekuvalod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4405/1864/files/lowes_harrisonburg_va.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2951/0814/files/50397490758.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000562b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x562B | 5296 bytes |
SHA-256: 1bc50eaa1630d3558b7622ae28bd29d3a6407535864efcf17450b8191c8dd5aa |
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font_01_sfnt_off000067fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67FC | 10068 bytes |
SHA-256: 5c1fd1adb58f64b6beb160608fb941349c52fbca15d5c29515b46f8bb4620e67 |
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font_02_sfnt_off00008a6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A6D | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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