MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the suspicious URL, suggesting a lure to a malicious site. The primary attack pattern involves redirecting users through a link farm to potentially malicious 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=academia.+edu+er+online
- http://files.yummy-yoga.co.uk/uploads/1/3/1/1/131164479/1599385.pdf
- http://files.ihcdatabase.com/uploads/1/3/2/6/132695388/dibudezupi-vakefazifel-fudujajerodowal.pdf
- http://files.avtarindiatours.com/uploads/1/3/1/4/131437702/3b588b4f9b.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80278007767.pdf
- https://cdn.shopify.com/s/files/1/0430/1121/1425/files/93338773852.pdf
- https://cdn.shopify.com/s/files/1/0430/0010/3071/files/sebevagexibudone.pdf
- https://cdn.shopify.com/s/files/1/0428/9875/1641/files/9763016213.pdf
- https://cdn.shopify.com/s/files/1/0428/1974/7999/files/free_to_cdr_converter_online_software.pdf
- https://cdn.shopify.com/s/files/1/0431/6289/4498/files/50_shades_of_grey_download.pdf
- https://cdn.shopify.com/s/files/1/0438/0190/3264/files/debit_credit_balance_sheet_excel.pdf
- https://cdn.shopify.com/s/files/1/0430/1773/2259/files/eia_report_of_highway_project.pdf
- https://cdn.shopify.com/s/files/1/0433/2745/5387/files/boogie_woogie_notes_piano.pdf
- https://cdn.shopify.com/s/files/1/0433/0360/0283/files/64020685491.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_off00006c13.bind40f221cf3d6f61b364a2a542317f8f4ab3b792f115d4c72b0e78a0a0f1171a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C13 | 4928 bytes |
font_01_sfnt_off00007cb3.bin9a92e1f82fcf6c54a0abf8cc52cb2e1921b73839a6f026e320a4e80fcef66910 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CB3 | 10464 bytes |
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