MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.cc/pify. The document body, though heavily obfuscated, contains text related to worksheets and a URL that matches the redirector, indicating a lure to disguise malicious activity. No scripts were extracted from this sample.
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.cc/pify?keyword=kinds+of+triangles+according+to+sides+and+angles+worksheets+pdf
- http://ladex.bugi3d.com/uploads/1/3/2/8/132814930/ravolaji_mamugupofok.pdf
- http://files.krisyforce.com/uploads/1/3/2/3/132303353/7490918a.pdf
- http://files.stagemusicstudios.com/uploads/1/3/1/3/131381480/4209000.pdf
- http://files.myacexportfolio.com/uploads/1/3/1/6/131637306/5762611.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/0006/2367/files/nojubopexufen.pdf
- https://cdn.shopify.com/s/files/1/0435/7718/0328/files/gujawopuzukekonez.pdf
- https://cdn.shopify.com/s/files/1/0428/7044/0095/files/44622691089.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdf
- https://cdn.shopify.com/s/files/1/0434/4853/3142/files/vuwopapevosaku.pdf
- https://cdn.shopify.com/s/files/1/0430/1501/2511/files/85493420911.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84593422723.pdf
- https://cdn.shopify.com/s/files/1/0430/7622/3129/files/mapipobagazale.pdf
- https://cdn.shopify.com/s/files/1/0438/9945/3608/files/80661631944.pdf
- https://cdn.shopify.com/s/files/1/0434/1828/8284/files/95523253076.pdf
- https://cdn.shopify.com/s/files/1/0431/4179/1895/files/8293856861.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_off00005d39.bin3c3e27a897c7127ed9577a934143a6df2d10d77a1884769fc079e8ae968e089f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D39 | 5544 bytes |
font_01_sfnt_off00007017.bind3ffe1ada28f8103a76348ab5bd60cb61f089bf967f33ce9456a77c9cbbdab02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7017 | 9616 bytes |
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