MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file exhibits characteristics of a link farm, embedding numerous external links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=basara+4+sumeragi. The ML classifier strongly indicates maliciousness, and the PDF structure suggests an attempt to manipulate search engine results or lure users to malicious sites.
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=basara+4+sumeragi In PDF document text
- http://files.orilingo.com/uploads/1/3/1/6/131636589/6078262.pdfIn PDF document text
- http://files.srandhh.com/uploads/1/3/1/0/131070216/9c56d.pdfIn PDF document text
- http://files.discoveringsarah.com/uploads/1/3/1/3/131398125/zewamatizuzugaxag.pdfIn PDF document text
- http://files.techtoberfestoc.com/uploads/1/3/2/6/132681556/9747449.pdfIn PDF document text
- http://zorumot.yrpm.ca/uploads/1/3/0/7/130775565/763de2.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/1/0429/2627/6775/files/rixubawax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9640/8218/files/nudoxiwopoxuwimidimojetas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7857/2450/files/jezawabugiwivomowovu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0649/2823/files/android_camera_surfaceview_github.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7206/9525/files/parshya_archi_ali_dj_song.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2021/2645/files/raxaxarikaretinuvubajuzed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/7076/7512/files/tajuvizenujodusemigiwukep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4730/2806/files/20590744001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1381/6995/files/gisigeninebura.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2812/6618/files/national_geographic_traveler_vietnam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6839/1591/files/wawakun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7916/4314/files/58769173053.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009143.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9143 | 17604 bytes |
SHA-256: f214878f3d74831a5eafbf5b3ed0968edb6925522ffc20efa93f34d51d3cfd06 |
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font_01_sfnt_off0000c9e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9E8 | 5112 bytes |
SHA-256: 938baf1e03614487d1eedd4300843d69c1e2a0c9dc0b430e51c1d11564ee5b13 |
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font_02_sfnt_off0000db35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB35 | 10376 bytes |
SHA-256: 22273978628c46be80f5f85b166d29c1ec153eb10cbfb1ad2bd4a3c227e6a28f |
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