MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to potentially malicious or redirector infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary malicious URL identified is https://ttraff.ru/pify?keyword=linking+and+action+verbs+exercises+with+answers, which is likely used to distribute further malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=linking+and+action+verbs+exercises+with+answers
- http://pufopab.tohscounseling.org/uploads/1/3/1/4/131407089/163646de11a.pdf
- http://files.simplywholesometreats.ca/uploads/1/3/0/9/130969889/kiwaxamufapuw.pdf
- http://silasola.chicagoguitarfestival.com/uploads/1/3/1/6/131636668/269d523283ce5f.pdf
- http://files.designmoulding.org/uploads/1/3/1/3/131380728/8711dd3.pdf
- http://navoz.bigislandeventrentals.com/uploads/1/3/0/9/130969352/3257511.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/0859/6900/files/hit_notifier_mturk.pdf
- https://cdn.shopify.com/s/files/1/0431/3242/0264/files/introduction_to_automata_theory_languages_and_computation_4th_edition.pdf
- https://cdn.shopify.com/s/files/1/0452/7469/3794/files/bank_of_polampur_book_free_download.pdf
- https://cdn.shopify.com/s/files/1/0432/6768/6558/files/87002262456.pdf
- https://cdn.shopify.com/s/files/1/0435/1990/1850/files/43358299829.pdf
- https://cdn.shopify.com/s/files/1/0448/4520/3618/files/infinite_geometric_sequence.pdf
- https://cdn.shopify.com/s/files/1/0429/5933/9674/files/dojalodizavukowurikavi.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005037.bin4842280bd04c0b1ec6f5b6cd5a833422d3b8f5b47272ee8a44aa98743226e708 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5037 | 5536 bytes |
font_01_sfnt_off00006314.bin1a5fa674922c6c16c2ccd03784fea60ad9c84c63e9aab61e4598e353afb1b48f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6314 | 9932 bytes |
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