MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text fragments suggesting a lure related to a "stolen book pdf". The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the nature of the redirector and the PDF structure suggest an attempt to deliver a malicious payload or lead the user to a phishing site.
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/wix?keyword=stolen+book+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_5ec0e504b44d423e9869434d07cae964.pdf
- https://static.usrfiles.com/ugd/b8c837_07d40035df2a43baafe2e9f9bf9476f1.pdf
- https://static.usrfiles.com/ugd/822ecd_34e2cb763b464f26bef41d988ac85d21.pdf
- https://cdn.shopify.com/s/files/1/0432/6827/6384/files/suwuvubarin.pdf
- https://cdn.shopify.com/s/files/1/0433/1818/2041/files/permittivit_dilectrique_du_vide.pdf
- https://cdn.shopify.com/s/files/1/0431/5312/9640/files/dubai_metro_map_high_resolution.pdf
- https://static.usrfiles.com/ugd/ee6770_62dd1e6f39d442c1a340315c6f896994.pdf
- https://static.usrfiles.com/ugd/0779a3_8e094ff621234137abb9384095071d71.pdf
- https://static.usrfiles.com/ugd/72b0e7_1bb0de30fc5a4ffa9f93b764db414657.pdf
- https://static.usrfiles.com/ugd/ac72e0_b199764448134557a3906f6094fd01b3.pdf
- https://static.usrfiles.com/ugd/b8c837_f6b5df4004064f65a2c41b7d1b8e82e4.pdf
- https://cdn.shopify.com/s/files/1/0431/6522/1023/files/caesar_and_cleopatra_book.pdf
- https://cdn.shopify.com/s/files/1/0434/4525/6352/files/76588045617.pdf
- https://cdn.shopify.com/s/files/1/0431/5509/5712/files/23507849085.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006945.binbb0c86a6fe4b402bba577cda3417923c38f0726b67f25b24d7001bd6a2ca8dba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6945 | 4860 bytes |
font_01_sfnt_off000079e4.bin19079f7ad06547240d2b3e0651d3d885602c54924625d23f50d43c55fb9ab8e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79E4 | 10040 bytes |
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