MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous links, many pointing to Shopify domains, designed to appear as legitimate book downloads. One primary link, https://ttraff.ru/wb?keyword=silverstein%20spectroscopy%20book%20free%20download%20pdf, is identified as a malicious redirector. This indicates a likely SEO poisoning or link farm attack pattern, aiming to drive traffic to malicious infrastructure under the guise of providing free downloadable 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/wb?keyword=silverstein%20spectroscopy%20book%20free%20download%20pdf
- http://files.christumcutah.org/uploads/1/3/2/3/132302768/6066217.pdf
- http://files.artbycash.com/uploads/1/3/1/1/131164387/2960354.pdf
- http://files.shirlingtonsports.com/uploads/1/3/0/7/130740368/migujujez-jobuw-vudisuwanadit-gebewirigof.pdf
- http://files.hughesphotography.com/uploads/1/3/1/0/131070476/jiferawife-fewexazama-zonubinegurif.pdf
- https://cdn.shopify.com/s/files/1/0434/6966/8517/files/61119904421.pdf
- https://cdn.shopify.com/s/files/1/0433/6749/7880/files/difference_between_parametric_and_nonparametric_statistical_tests.pdf
- https://cdn.shopify.com/s/files/1/0434/7727/0692/files/printer_test_page_black_and_white.pdf
- https://cdn.shopify.com/s/files/1/0437/6523/5866/files/2007_vw_passat_owners_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/6581/8789/files/60332598474.pdf
- https://cdn.shopify.com/s/files/1/0430/2172/9955/files/gebedobidebodedefazogugu.pdf
- https://cdn.shopify.com/s/files/1/0436/4081/5774/files/tevovol.pdf
- https://cdn.shopify.com/s/files/1/0429/4692/0615/files/mefajufi.pdf
- https://cdn.shopify.com/s/files/1/0430/4509/3533/files/16733356990.pdf
- https://cdn.shopify.com/s/files/1/0437/0789/1877/files/3421241222.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_off0000d271.binf76ced5e89ac0ba669537cc9c190450ac02df350d8b8a0058fb7fbca08df2869 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD271 | 5708 bytes |
font_01_sfnt_off0000e60b.binad09dc8d8caf0b6dcbc66dc32b4d2b0a18876358c68a824cc7aec9db0601a34b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE60B | 14140 bytes |
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