MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, also contains this redirector URL and other URLs that appear to be part of a link farm designed to obscure the true malicious destination. The ML classifier also strongly indicated maliciousness.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.cc/wb?keyword=printable%20letters%20worksheets%20for%20kindergarten In PDF document text
- http://tukipuped.autolandcars.ca/uploads/1/3/1/0/131069934/ff81621ce10b2.pdfIn PDF document text
- http://files.fhbcfortmyers.org/uploads/1/3/0/8/130874612/viloroluxaf-pironu-wupekosemobikuz-padovup.pdfIn PDF document text
- http://files.determinedart.org/uploads/1/3/2/6/132695388/vegopoxarid.pdfIn PDF document text
- http://files.learningandbehavior.org/uploads/1/3/0/9/130969054/e3cb79b62f01.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/1/0437/6828/3294/files/govorijapa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3740/8936/files/8325886924.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1647/9132/files/movezuwagezo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5804/4823/files/rig_veda_bhashya.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7453/4041/files/present_value_of_annuity_formula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2742/1608/files/ferolopenatekume.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4842/6910/files/75840766032.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7870/4536/files/12034669056.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tazoxusejeko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2602/0509/files/28113282540.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0826/0258/files/52406309169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5698/8317/files/pafufeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0414/8382/files/42893668114.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0575/2997/files/automotive_repair_workshop.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_off00006e27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E27 | 5464 bytes |
SHA-256: c7508db2bbcf4af463d593f7a5828d121f3e24be4da89051fdd83e931d93665c |
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font_01_sfnt_off000080be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80BE | 9828 bytes |
SHA-256: d756e3437bae6ab3d6c6b2576f91b11d639cbf6b5d9cdd3085e55c9228b61097 |
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