MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a large number of embedded links, with one specifically identified as a malicious redirector. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic. The document body itself is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create PDF versions of web pages.
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.com/wb?keyword=thermo%20scientific%20iec%20cl10%20centrifuge%20manual
- http://files.peterlynas.com/uploads/1/3/1/3/131383333/dovorami.pdf
- http://files.garysstorage.com/uploads/1/3/0/9/130969470/livuv.pdf
- http://ximegeb.annapike.co.uk/uploads/1/3/2/3/132302963/bibupij_ruzubi_vuxeximoxan.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/7926/1590/files/zixomipefovepoxuk.pdf
- https://cdn.shopify.com/s/files/1/0430/9975/0560/files/fajova.pdf
- https://cdn.shopify.com/s/files/1/0435/4116/8283/files/89299094946.pdf
- https://cdn.shopify.com/s/files/1/0428/4094/8903/files/56526828231.pdf
- https://cdn.shopify.com/s/files/1/0429/4069/4684/files/6_to_binary.pdf
- https://cdn.shopify.com/s/files/1/0433/8886/2614/files/64891629331.pdf
- https://cdn.shopify.com/s/files/1/0431/1711/7589/files/72623371230.pdf
- https://cdn.shopify.com/s/files/1/0435/3199/3242/files/colour_blindness_chart_download.pdf
- https://cdn.shopify.com/s/files/1/0437/7398/4919/files/pdf_digital_marketing_books.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004660.binf913b36b1080dbce73d946ecdcec58812986c2c838355e5a78ad694f4fb214cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4660 | 5436 bytes |
font_01_sfnt_off000058bb.bin9ab2947d5b3c4140d61bbd05e2073fc582573a7daf573a2e75b966c5de517ea6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58BB | 9884 bytes |
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