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 a link farm designed to redirect users to potentially malicious sites, as indicated by the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. The document body text and embedded links suggest a lure related to 'NCAA clearinghouse information sheet' to entice clicks. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or redirection attack.
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=ncaa+clearinghouse+information+sheet
- http://vizokekud.smalleyestate.myhackney.org/uploads/1/3/0/7/130775643/6d8c29fb860c.pdf
- http://lerovuw.stevedurow.com/uploads/1/3/2/7/132712109/lakugejuwere_xataponud.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0440/7836/6872/files/buzulolixop.pdf
- https://cdn.shopify.com/s/files/1/0431/8812/5857/files/rixisezawaverapajuwa.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/79348642796.pdf
- https://cdn.shopify.com/s/files/1/0431/9087/8372/files/dudujorokunako.pdf
- https://cdn.shopify.com/s/files/1/0431/6895/6573/files/sojabajes.pdf
- https://cdn.shopify.com/s/files/1/0439/1269/1880/files/aycliffe_drive_primary_school_uniform.pdf
- https://cdn.shopify.com/s/files/1/0429/5639/0559/files/dijutudasitewozefeda.pdf
- https://cdn.shopify.com/s/files/1/0430/1943/6185/files/32433913300.pdf
- https://cdn.shopify.com/s/files/1/0430/7235/6509/files/62268613144.pdf
- https://cdn.shopify.com/s/files/1/0436/2865/8848/files/15261851011.pdf
- https://cdn.shopify.com/s/files/1/0436/0713/0270/files/query_remove_duplicates_google_sheets.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_off00005f3d.binc40a8311f894335e230d13c76c9917ad62d5c78b2527917648e098241b197e4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F3D | 5264 bytes |
font_01_sfnt_off000070f6.bin439630ff7a3be9ab3191c5c1ba56b4b1f474665deee2e253bed2d9bd2aa5ef09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70F6 | 10476 bytes |
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