MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a critical finding of a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The presence of numerous links, many pointing to benign Shopify URLs, suggests an attempt to mask the malicious redirector within a larger link farm, potentially for SEO manipulation or to appear less suspicious. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=online+attendance+management+system+project+report+in+java+pdf In PDF document text
- http://files.blueskyoga.co.uk/uploads/1/3/1/4/131437149/9953346.pdfIn PDF document text
- http://files.photosbycalley.com/uploads/1/3/2/3/132303083/jojefurefulabi-gisutuxizof-fezawaraxugo.pdfIn PDF document text
- http://files.daviestreeservicesltd.co.uk/uploads/1/3/2/7/132741110/xijibam-gilonotetemutoz.pdfIn PDF document text
- http://files.kmphotographyma.com/uploads/1/3/1/4/131407165/1126974.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/1/0439/5496/2590/files/goldman_cecil_medicine_25th_edition_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8569/9997/files/mad_about_the_boy_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3503/1712/files/69590417121.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6271/2734/files/berg_balance_scale_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3428/0090/files/boiled_eggs_diet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4495/2471/files/mechanics_and_thermodynamics_of_propulsion.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6348/4315/files/79084843160.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4114/3454/files/optical_emission_spectrometer_principle.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2316/1768/files/78422418762.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5937/2439/files/rrb_aptitude_test_questions_free_download.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_off00007b04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B04 | 5740 bytes |
SHA-256: b139cd5448cc5144a56a51023810cd734bac55bff327eab5e9022f2151396f34 |
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font_01_sfnt_off00008e8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E8A | 10736 bytes |
SHA-256: 766dfd64be2c2b5a52b507096a99fd1c01bb4743d742619bd1a09cea6864e868 |
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