MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to 'advanced english exercises'. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to malicious infrastructure, likely for further exploitation or phishing.
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/pify?keyword=advanced+english+exercises+with+answers+pdf
- http://files.michielwerring.com/uploads/1/3/2/6/132695244/b234ed478419.pdf
- http://files.ejstanford.com/uploads/1/3/1/3/131382018/1bece711f5ef.pdf
- http://files.ywtc.ca/uploads/1/3/2/7/132710795/taxadu.pdf
- http://files.villavidalocamarket.com/uploads/1/3/1/4/131438682/mejobona_pepurumiferezo.pdf
- http://files.willowfree.ca/uploads/1/3/0/7/130740344/xiwodufa.pdf
- https://cdn.shopify.com/s/files/1/0432/6470/4662/files/93883681588.pdf
- https://cdn.shopify.com/s/files/1/0430/8143/3242/files/fudewelipilupiwivosukana.pdf
- https://cdn.shopify.com/s/files/1/0431/7813/1611/files/zafidan.pdf
- https://cdn.shopify.com/s/files/1/0430/5597/2501/files/83286783456.pdf
- https://cdn.shopify.com/s/files/1/0431/6325/4944/files/bidasokivuf.pdf
- https://cdn.shopify.com/s/files/1/0431/5296/5789/files/dadasop.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52135332303.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/malerofefamizekigo.pdf
- https://cdn.shopify.com/s/files/1/0430/1278/4277/files/25072924771.pdf
- https://cdn.shopify.com/s/files/1/0439/2629/0587/files/57170658623.pdf
- https://cdn.shopify.com/s/files/1/0430/9889/8592/files/logode.pdf
- https://cdn.shopify.com/s/files/1/0433/8096/5534/files/85425239233.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_off00006f56.bin3e5f20797d2e07512ea836bf2497bff9362d31a74175a031c624b569410c13c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F56 | 5304 bytes |
font_01_sfnt_off0000816c.bind5a6383e945791f3d3ba1fcb04d0677bff9484f813a0202c0118c726650702d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x816C | 10164 bytes |
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