MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.ru'. It also contains a heuristic for a PDF link farm, with numerous external links, many pointing to Shopify-hosted PDFs. The document body, though heavily obfuscated, suggests a lure related to 'free coloring shapes worksheets'. The presence of embedded URLs and the nature of the heuristics strongly indicate a phishing or scam attempt designed to redirect users to malicious sites.
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=free+coloring+shapes+worksheets
- http://files.ramblinghomestead.com/uploads/1/3/0/8/130874496/bc1666.pdf
- http://files.thisiswitchdoctor.com/uploads/1/3/1/8/131856012/2ff0ce4b3707bf.pdf
- http://files.preacherrhetorica.com/uploads/1/3/1/3/131398036/7840310.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/8858/4605/files/suwurugizozegosaxanipis.pdf
- https://cdn.shopify.com/s/files/1/0428/8564/4454/files/wojumutetuxogogajinopu.pdf
- https://cdn.shopify.com/s/files/1/0429/1090/8572/files/besud.pdf
- https://cdn.shopify.com/s/files/1/0428/4225/9612/files/62979459448.pdf
- https://cdn.shopify.com/s/files/1/0434/7982/6582/files/14049409349.pdf
- https://cdn.shopify.com/s/files/1/0431/1616/7328/files/91613186910.pdf
- https://cdn.shopify.com/s/files/1/0435/4582/1338/files/79503922241.pdf
- https://cdn.shopify.com/s/files/1/0431/8937/1029/files/nijemukivorudekefakif.pdf
- https://cdn.shopify.com/s/files/1/0435/2186/7930/files/matifudaserabuvalilojel.pdf
- https://cdn.shopify.com/s/files/1/0432/7342/0965/files/luxanufanuv.pdf
- https://cdn.shopify.com/s/files/1/0429/8250/6647/files/30783812262.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_off00006a1f.bind57b67accd1ee0ef7d2d2f3dcd2738b86079e276ada4785298028874ca47cf8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A1F | 5096 bytes |
font_01_sfnt_off00007b76.bin1303badb70ed9aa04f21894c9d3cd5e44460897b875b214b49b8f9cc54b2e22d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B76 | 9788 bytes |
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