MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external resources, masquerading as a vocabulary list, which is a common lure for phishing or malware delivery. The primary redirector URL, 'https://ttraff.ru/pify?keyword=german+vocabulary+lists+by+topic+pdf', is flagged as malicious. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is designed to redirect users to harmful content.
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=german+vocabulary+lists+by+topic+pdf In PDF document text
- http://files.konsultservices.com/uploads/1/3/1/8/131872087/nulanudifo.pdfIn PDF document text
- http://files.brewsandmews.com/uploads/1/3/0/8/130874109/de25d.pdfIn PDF document text
- http://files.mydrycleaningguy.com/uploads/1/3/1/4/131407849/a5cc9aa05354f60.pdfIn PDF document text
- http://files.pnba-artists.org/uploads/1/3/1/0/131070711/db357bcc0b38b39.pdfIn PDF document text
- http://files.kortarsmuveszet.com/uploads/1/3/1/8/131856664/vimaretanizig.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/1/0429/3191/2857/files/20418714117.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6403/3429/files/89001941840.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8110/5562/files/marulifibaziwijosa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6111/6064/files/akuntansi_perbankan_taswan_edisi_3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1350/4156/files/sugomulefimekezozoziwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8795/3053/files/full_block_business_letter_format.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8834/6262/files/62799263811.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2562/9335/files/49652799267.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5498/9466/files/how_to_set_homepage_on_chrome.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6845/6088/files/bsc_1st_year_chemistry_syllabus_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7886/8387/files/cetosis_bovina_fisiopatologia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5637/3670/files/answer_sheet_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2216/3876/files/jafipaduburazonixut.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_off00007175.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7175 | 5636 bytes |
SHA-256: a85c5d94f217d8acc3d6962b8392a489586916943b8b9fc2dd6d7211044c5385 |
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font_01_sfnt_off00008497.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8497 | 10224 bytes |
SHA-256: 2c7556aba9b1282925ee5f511c819e97716e6aeb1a3f96b7e585b3e7f02dc9e5 |
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