MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.ru/wix?keyword=sales+tax+worksheet, which is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify and static.usrfiles.com, suggesting a coordinated effort to distribute malicious content. The ML classifier also strongly indicated maliciousness.
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=sales+tax+worksheet
- https://cdn.shopify.com/s/files/1/0437/6556/3549/files/wilenuzafus.pdf
- https://cdn.shopify.com/s/files/1/0432/6352/5029/files/59363304445.pdf
- https://cdn.shopify.com/s/files/1/0429/6766/2748/files/mididodomanakovegizejamo.pdf
- https://static.usrfiles.com/ugd/2ac701_13f0cc648f8f41a5999653dc07d29147.pdf
- https://static.usrfiles.com/ugd/b8c837_465b0c3ebe4b43219b3f6ec87d22ccf5.pdf
- https://static.usrfiles.com/ugd/b8c837_90c06be288614fed931fe8538f3146cb.pdf
- https://static.usrfiles.com/ugd/b8c837_17843f1b74f547aab2b79d085ca6893f.pdf
- https://static.usrfiles.com/ugd/af0aa9_d8d4fd24492a4c0381557192ebcb9990.pdf
- https://static.usrfiles.com/ugd/b8c837_1ede4d68659f408ab4f3a4858bdffa19.pdf
- https://static.usrfiles.com/ugd/f3ecbe_ed20c09f354843eb833f8e90838abd4c.pdf
- https://static.usrfiles.com/ugd/b8c837_994f233a8f7142e2aa9eb3e797c90b38.pdf
- https://static.usrfiles.com/ugd/0a593f_289ab6f34c01424eb807cad854c5c1ce.pdf
- https://cdn.shopify.com/s/files/1/0440/6552/1814/files/answering_your_own_question_rhetorical.pdf
- https://cdn.shopify.com/s/files/1/0431/4795/2294/files/jurubexonusalex.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_off00009406.bin4909ea3c1c2f2f15ade3200b3c054ca65b11958ddacb64840a03b111a05ff27c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9406 | 5100 bytes |
font_01_sfnt_off0000a566.bin4c6a4418e76647eb87a6af717a4ad360199d64abbbae9a8175cc111ec6f27918 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA566 | 10752 bytes |
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