MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that lead to a redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=signs+and+symptoms+of+hepatitis+b+pdf`. This redirector is likely used to obscure the final malicious destination, a common tactic for phishing and malware distribution. The document body, though partially corrupted, contains text related to 'hepatitis b pdf' and the tool 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious.
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.cc/pify?keyword=signs+and+symptoms+of+hepatitis+b+pdf In PDF document text
- http://files.macombcountyretirees.com/uploads/1/3/0/8/130813846/8211006.pdfIn PDF document text
- http://files.upwardspiralcc.com/uploads/1/3/1/3/131398308/6416517.pdfIn PDF document text
- http://files.lisawbwalker.com/uploads/1/3/0/7/130776358/disotosidopakemudiwa.pdfIn PDF document text
- http://files.libbiessimplejoys.com/uploads/1/3/2/6/132680986/turen.pdfIn PDF document text
- http://rejol.kenrubitskyassociates.com/uploads/1/3/0/8/130815009/5178666.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/1/0435/2190/0696/files/ranij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3526/1085/files/d3._js_heat_map.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7628/7648/files/favozuxonijo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8714/3839/files/54027940806.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7247/1718/files/simonu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0459/1254/files/zumumafivomovor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4037/2896/files/job_application_letter_for_pharmaceutical_company.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2868/3674/files/pizzaiolo_menu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3349/2641/files/98830441441.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2642/3718/files/diregi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0123/4076/files/7032126455.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0729/3086/files/jidimitab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6424/5925/files/51017924433.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1141/5959/files/zusogodam.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_off00006ac1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AC1 | 5672 bytes |
SHA-256: 26dcc0b3d4f324fd76e302505d04a0aa385c91f01cffb02822ef55c1c667b5b7 |
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font_01_sfnt_off00007dee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DEE | 10208 bytes |
SHA-256: 3d34e43243d0b8d474b76610ae9458b8675405a8173028cb1cea24e8b0329b47 |
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