MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One prominent link redirects through a malicious domain, ttraff.cc, which is known to host redirector infrastructure. The document body, though heavily obfuscated, contains text related to PDF downloads and the malicious URL, suggesting a lure to trick users into visiting the redirector. The ML classifier also strongly indicated maliciousness.
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=calculus+of+variation+by+a+s+gupta+pdf In PDF document text
- http://files.gnv-daerligen.ch/uploads/1/3/0/8/130814774/dezadaselowu.pdfIn PDF document text
- http://files.lindsay-hamilton.com/uploads/1/3/1/4/131408899/visagemoram-dagogamawe-gumejosujejok.pdfIn PDF document text
- http://files.studioplumpiano.com/uploads/1/3/1/3/131383497/70178f76b.pdfIn PDF document text
- http://files.agency360sf.com/uploads/1/3/1/4/131437889/7997441.pdfIn PDF document text
- http://files.mcnairy.com/uploads/1/3/1/3/131383747/ladopa-munil-fiwewipuxi-dunufepokalet.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/1/0433/9246/7109/files/cormen_for_design_analysis_and_algorithm_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4278/0837/files/bovine_mastitis_treatment.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3754/1031/files/sevemizazodi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9461/3924/files/92859714914.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47171602999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/6601/1298/files/anabaptist_movement.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1218/5502/files/85239126416.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3623/8236/files/vosowisaduwidodele.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4714/7928/files/zelda_ocarina_of_time_walkthrough_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0592/6809/files/ziropoferizotupa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2140/0226/files/change_text_box_color.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.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_off000053cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53CD | 5528 bytes |
SHA-256: 7707d5d649df47aaca3a17f52e3ffde85c171464d853da5378171f0eb0442312 |
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font_01_sfnt_off000066af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66AF | 10096 bytes |
SHA-256: 6bd58b4f19f91644f1abbf9db091faf64853fead350ed0be6ca1ce1b55e4b6be |
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