MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=public+speaking+tips+and+tricks+pdf'. Another critical heuristic identifies this as a PDF link farm, with 30 external PDF links. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=public+speaking+tips+and+tricks+pdf', suggesting the document's primary purpose is to redirect users to malicious 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=public+speaking+tips+and+tricks+pdf In PDF document text
- http://wesaxeju.fbctitusville.org/uploads/1/3/0/7/130775405/tevinorupefopizineb.pdfIn PDF document text
- http://files.gibsonspropertyservices.co.uk/uploads/1/3/0/7/130739268/7916a38c.pdfIn PDF document text
- http://files.rsgymnastics.org/uploads/1/3/1/0/131071067/f07a499ee87.pdfIn PDF document text
- http://files.thecapacitygroup.org/uploads/1/3/1/6/131636807/sulevituj-tupelefazid.pdfIn PDF document text
- http://files.esthermilesart.com/uploads/1/3/1/4/131438418/4815210.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/1/0428/7548/6367/files/korutozazit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0210/1923/files/gikijo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6560/6301/files/93354112379.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9850/4354/files/how_to_make_forest_in_little_alchemy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9137/6794/files/36627902814.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8312/9251/files/larezidakumezegi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/musuvagexas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7371/5870/files/fegamepexesejoxezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2915/8295/files/borderlands_2_game_saves.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1614/2497/files/elementary_linear_algebra_kolman.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3970/9605/files/tinkers_construct_dense.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0463/2992/files/latex_problem_set_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1104/6558/files/is_sql_object_oriented.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7265/1413/files/6175586081.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_off00006320.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6320 | 5528 bytes |
SHA-256: a71807c26acd159736522885353f9a7ee989667e83095e5ceca606a29d2abb7a |
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font_01_sfnt_off000075ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75EE | 10132 bytes |
SHA-256: 179f85f4f14eb68ed94c398477153b198f01fcb5be622ede70ce4650f07fedd3 |
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