MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of embedded links, identified as a link farm, pointing to various PDF files. One of these links, 'https://ttraff.ru/pify?keyword=carmilla+libro+pdf+gratis', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links, suggesting a lure to external content.
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=carmilla+libro+pdf+gratis
- http://files.terrafirmaroasting.com/uploads/1/3/2/6/132682819/36ba9f8be3.pdf
- http://files.easternsloperanch.com/uploads/1/3/2/6/132681404/3588728.pdf
- http://files.confectionatelyyoursbakery.com/uploads/1/3/0/9/130969548/20dfa8598f8cb.pdf
- http://files.gateslscott.com/uploads/1/3/1/0/131071184/6881945.pdf
- https://cdn.shopify.com/s/files/1/0435/4460/8920/files/konuzerepukapiji.pdf
- https://cdn.shopify.com/s/files/1/0429/9964/4314/files/complete_phonics_chart.pdf
- https://cdn.shopify.com/s/files/1/0431/4906/6397/files/wavipevopalufepolo.pdf
- https://cdn.shopify.com/s/files/1/0435/3523/7269/files/92480244289.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdf
- https://cdn.shopify.com/s/files/1/0431/0319/1193/files/96962402573.pdf
- https://cdn.shopify.com/s/files/1/0435/8209/5517/files/9393631463.pdf
- https://cdn.shopify.com/s/files/1/0447/1137/9097/files/baptism_certificate_free.pdf
- https://cdn.shopify.com/s/files/1/0428/3462/4679/files/30492703849.pdf
- https://cdn.shopify.com/s/files/1/0431/1361/1421/files/49150374830.pdf
- https://cdn.shopify.com/s/files/1/0431/6980/8550/files/delatuder.pdf
- https://cdn.shopify.com/s/files/1/0432/0421/4942/files/95043778426.pdf
- https://cdn.shopify.com/s/files/1/0431/6856/3351/files/minecraft_adventure_servers_with_classes.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_off000072f7.bin313ba3bad17c514a706b7a03adfa5243fbc07bc5708b5342271e5ee8e452ceaf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72F7 | 5404 bytes |
font_01_sfnt_off00008535.bine53f4cc61ad0e626e261ca66139f2dd9ae20a2516276b3d57f983501a1f8a7cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8535 | 10244 bytes |
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