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 Shopify domains hosting other PDFs. One critical heuristic indicates that the document links to a known malicious redirector at 'https://ttraff.ru/pify?keyword=asfixia+neonatal+2020+pdf'. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution.
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=asfixia+neonatal+2020+pdf In PDF document text
- http://files.rootdown-riseup.org/uploads/1/3/1/8/131871705/memuporutowul_mapabileduf_gexuse_bulapowenolovor.pdfIn PDF document text
- http://files.ysgolcybi.com/uploads/1/3/1/6/131606407/0f7fe.pdfIn PDF document text
- http://files.phytocapital.com/uploads/1/3/1/4/131407102/0ab0c36.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/1/0436/9547/2794/files/convert_html_file_to_linux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9151/6828/files/jekojazevabuvim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1268/4967/files/dipibagidinuve.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3980/7893/files/6142953950.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2447/4531/files/60743739373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2721/0144/files/depreciation_accounting_journal_entries.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5593/9733/files/57542485303.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9762/9596/files/49773321554.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9644/6878/files/glee_seasons_4_episode_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/4766/9160/files/massey_harris_44.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/4133/0076/files/black_ops_2_steam_key_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8318/5819/files/basic_classical_guitar_method_book_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0668/1497/files/48837771822.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000063c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63C6 | 5268 bytes |
SHA-256: d6cf89bea868715cf7e6f285cd1419009e124338149e1c03d9ffd75cf40315e3 |
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font_01_sfnt_off000075c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75C2 | 10384 bytes |
SHA-256: 9e4e1674d49afdced6d0db3c607379c153595bf318153bcc9f4326ed46e5a5ef |
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font_02_sfnt_off00009987.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9987 | 16204 bytes |
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e |
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