MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body text, though heavily obfuscated, contains phrases related to application letters and download prompts, suggesting a lure. The primary malicious URL identified is ttraff.ru, which redirects to a potentially harmful site. No scripts were extracted from this sample.
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.ru/pify?keyword=sample+application+letter+for+teachers+fresh+graduate+pdf In PDF document text
- http://files.kennedylayne.com/uploads/1/3/1/4/131454355/8826730.pdfIn PDF document text
- http://files.sam-miee.com/uploads/1/3/0/9/130969075/sabipofudukakosu.pdfIn PDF document text
- http://files.amethystretreatcenter.org/uploads/1/3/1/0/131071157/zaforesudafetanosav.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0428/4196/4710/files/dikevurixuva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8103/1064/files/free_online_autocad_drawing_to_converter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5170/3706/files/tulukexebedilov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6275/5490/files/61442167159.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4012/0733/files/sukajufiwoxositot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9109/0844/files/79394897026.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0334/7097/files/lumiliwulajidedewis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0176/6310/files/97993560760.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5706/1781/files/nevolew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1984/6311/files/28499599795.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7945/7175/files/68292212757.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8937/9993/files/gezebaka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1267/5990/files/627305083.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_off00007063.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7063 | 5556 bytes |
SHA-256: 9008a6fc3ae5ade46c0a904f7e77129ea58556618b6607129a91ed7044875c86 |
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font_01_sfnt_off00008302.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8302 | 9944 bytes |
SHA-256: e193517860779bd03e44d1104185553fd5fcb2d6353e10d0e633bd42f54c965f |
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font_02_sfnt_off0000a50a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA50A | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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