MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a deceptive link disguised as a search result for a free encyclopedia, which redirects to a known malicious URL. This indicates a social engineering tactic to trick users into visiting a potentially harmful site. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics confirm the presence of malicious redirector links and a link farm designed for SEO manipulation.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=the+new+children+s+encyclopedia+pdf+free+download
- http://files.icerandw.com/uploads/1/3/2/6/132695813/1063741.pdf
- http://jotok.richardswainshortstories.com/uploads/1/3/0/9/130969754/8737590.pdf
- http://files.how2productions.co.uk/uploads/1/3/1/3/131379830/77a25f40465cb7.pdf
- http://files.noidurham.org/uploads/1/3/0/8/130814935/nupokanovalo-diwedixiluverap.pdf
- http://files.peakhealthcaremaryland.com/uploads/1/3/1/4/131406816/rizapisopasiraluzoga.pdf
- https://cdn.shopify.com/s/files/1/0432/6404/9318/files/6345632940.pdf
- https://cdn.shopify.com/s/files/1/0431/6299/2799/files/kukodugaxisejemuxakavu.pdf
- https://cdn.shopify.com/s/files/1/0436/6653/8649/files/96660808864.pdf
- https://cdn.shopify.com/s/files/1/0440/0077/2246/files/tosusaboputozafuzal.pdf
- https://cdn.shopify.com/s/files/1/0431/8547/1656/files/roads_to_geometry_solutions_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/7300/3939/files/lorivinosolunitaxubi.pdf
- https://cdn.shopify.com/s/files/1/0438/3490/0637/files/vetevixibariletujodop.pdf
- https://cdn.shopify.com/s/files/1/0431/5748/7778/files/wuroxumenafogewugit.pdf
- https://cdn.shopify.com/s/files/1/0433/4731/2789/files/vipaxita.pdf
- https://cdn.shopify.com/s/files/1/0439/3825/0910/files/aoe_2_hd_mac.pdf
- https://cdn.shopify.com/s/files/1/0438/7821/9944/files/kugevalibaxale.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007831.bin17cd71c97faa972ca7c4a0079603d3aae32dcef4d6a9a563bb5457296e0a3b23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7831 | 5384 bytes |
font_01_sfnt_off00008a91.bin1c6505d34f887bf3a9eb9758c2b85938088db88c20930303501a659c233694b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A91 | 11188 bytes |
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