MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, including one to a known malicious redirector at ttraff.cc. The document body, though partially garbled, contains text that appears to be a lure for a book title, which is then linked to the malicious URL. This suggests the PDF is designed to redirect users to malicious content, likely for phishing or malware distribution.
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=mathematics+for+economists+by+taro+yamane+pdf
- http://files.artandroulla.com/uploads/1/3/1/3/131380773/6e51b943ebb202b.pdf
- http://files.perfectlyimperfectcollegian.com/uploads/1/3/0/7/130739069/dobironefivonisalu.pdf
- http://files.newworldwineshop.com/uploads/1/3/2/3/132302814/zijujogopifibu-kiniletipunip-zoraxasiwalewam.pdf
- https://cdn.shopify.com/s/files/1/0434/7019/2805/files/nisaxupej.pdf
- https://cdn.shopify.com/s/files/1/0435/4077/5064/files/winogewixomowetimax.pdf
- https://cdn.shopify.com/s/files/1/0428/8738/1155/files/jaxokomerugejoz.pdf
- https://cdn.shopify.com/s/files/1/0430/8769/1925/files/judigenawog.pdf
- https://cdn.shopify.com/s/files/1/0434/8618/3576/files/14663335336.pdf
- https://cdn.shopify.com/s/files/1/0430/9201/7305/files/24638027316.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26965864763.pdf
- https://cdn.shopify.com/s/files/1/0432/1555/2674/files/59960298039.pdf
- https://cdn.shopify.com/s/files/1/0436/4494/4542/files/2007_polaris_sportsman_700.pdf
- https://cdn.shopify.com/s/files/1/0429/9322/1783/files/97743021074.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_off00004b95.bin7e4b003f302018e58ba28f4b69b30e6b85ac775e46865c7ccf78e5865353bd53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B95 | 5608 bytes |
font_01_sfnt_off00005e8d.bin7e4f84aa6aae91b48b3e13d77a6592d96a8bd315dd8aa992dc1c87f3a982e83d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E8D | 10184 bytes |
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