MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded links, a technique often used to redirect users to malicious sites. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically flags a link to 'ttraff.ru', indicating a known redirector. The 'PDF_SEO_LINK_FARM' heuristic further supports this by identifying a large number of external PDF links, suggesting an attempt to game search engine results or distribute malicious content through a seemingly legitimate facade. No scripts were extracted, but the primary attack vector appears to be the redirection via embedded URLs.
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=design+of+liquid+propellant+rocket+engines+pdf In PDF document text
- http://files.jeremyclwong.com/uploads/1/3/1/0/131070196/5318067.pdfIn PDF document text
- http://files.kingdominnovation.com.au/uploads/1/3/1/4/131455543/xufanapamijiti.pdfIn PDF document text
- http://xuxoda.fsgse.com/uploads/1/3/1/4/131437601/tofozesiguxuru_zuzuvalidi.pdfIn PDF document text
- http://files.esskayebooks.com/uploads/1/3/1/3/131398338/pifijosogegonapeg.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/1/0434/7697/5768/files/webster_dictionary_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6332/6358/files/zozawijabodevuwikekuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0703/1966/files/bastien_piano_for_adults_book_1_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0820/4708/files/computer_architecture_cheat_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4979/4213/files/aerodynamic_performance_theory_for_the_nrc_vertical_axis_wind_turbine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7243/8947/files/bumurufobed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8438/1337/files/medugokake.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9655/6191/files/44350767033.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5798/5189/files/91836998602.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1825/5510/files/95548974980.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2349/0457/files/76705544904.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8240/7335/files/88272361310.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_off00005541.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5541 | 5512 bytes |
SHA-256: c84aed5e89dbbecc3e101f7636b9e9479fcd6e9f4c8e37fdd519ff2c6cae2306 |
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font_01_sfnt_off0000680e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x680E | 10200 bytes |
SHA-256: 8aa0e75585207c3562b037464f0f2e6cec4dbd0281824f279fa6727491b91b1e |
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