MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded URLs, with one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, appears to reference an ebook title and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly indicated maliciousness, and the PDF structure itself contained a link farm.
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/wix?keyword=prioritization+delegation+and+assignment+4th+edition+ebook
- https://cdn.shopify.com/s/files/1/0437/4963/8295/files/31216866674.pdf
- https://cdn.shopify.com/s/files/1/0430/7327/4018/files/19202166169.pdf
- https://cdn.shopify.com/s/files/1/0434/5584/0409/files/kodotamajujino.pdf
- https://cdn.shopify.com/s/files/1/0437/8044/0215/files/www_nod_321_com.pdf
- https://cdn.shopify.com/s/files/1/0428/2174/6854/files/jacquet_metal_service_annual_report_2018.pdf
- https://cdn.shopify.com/s/files/1/0460/3310/9156/files/dakovidoma.pdf
- https://cdn.shopify.com/s/files/1/0433/0124/0992/files/gibodesa.pdf
- https://cdn.shopify.com/s/files/1/0432/0965/4432/files/kewidifobusetegoro.pdf
- https://static.usrfiles.com/ugd/b8c837_a96ba4d53c5d49dcb42b83e3e8453bac.pdf
- https://static.usrfiles.com/ugd/b8c837_9a646644c5434f4db710c691e3add968.pdf
- https://static.usrfiles.com/ugd/b8c837_35695968fed741b7abf77f63de221c93.pdf
- https://cdn.shopify.com/s/files/1/0436/0781/8398/files/dupofuwobisifazudi.pdf
- https://cdn.shopify.com/s/files/1/0432/9085/3534/files/borges_book_of_imaginary_beings.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000046df.bin9720736d432434ea70f04f76f6315a6dd4b175ccc97a94ce891a22ae415cc727 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46DF | 5372 bytes |
font_01_sfnt_off000058ef.bin75efd1767073d840f9af5f3ac57cb4feb27853804be281cb378c9fab593892d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58EF | 9816 bytes |
font_02_sfnt_off00007a64.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A64 | 4324 bytes |
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