MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious due to a high ML score and the presence of numerous embedded links. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.club/wix?keyword=ancient+greece+a+new+history+pdf'. Another heuristic indicated a PDF link farm, with many links pointing to 'static.usrfiles.com'. The document body contains garbled text but does include the redirector URL and several benign-looking URLs, suggesting a lure to a malicious 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.club/wix?keyword=ancient+greece+a+new+history+pdf
- https://static.usrfiles.com/ugd/764aaa_849104fa28534608a0a298ef2e2a42f2.pdf
- https://static.usrfiles.com/ugd/7f16bd_9e48242d58b24e75be2dc55eb0489f46.pdf
- https://static.usrfiles.com/ugd/f09a9d_c5411229daec453ca0dae7f1de2f1126.pdf
- https://static.usrfiles.com/ugd/7ff653_d61f99e4df924dc38714aa62ba925e01.pdf
- https://static.usrfiles.com/ugd/140efa_b195bfdfd7c3414387f76a68e17699c1.pdf
- https://cdn.shopify.com/s/files/1/0436/1761/6034/files/xivanarajapawuri.pdf
- https://cdn.shopify.com/s/files/1/0440/5598/6341/files/90036144918.pdf
- https://cdn.shopify.com/s/files/1/0429/4583/9271/files/20789982571.pdf
- https://cdn.shopify.com/s/files/1/0430/6137/9226/files/fitenorozixivilisefugujav.pdf
- https://static.usrfiles.com/ugd/dcfb95_a78784cd285443439c40b8fdb00b0149.pdf
- https://static.usrfiles.com/ugd/1be480_13e6f25f6806407eb041fa5583436083.pdf
- https://static.usrfiles.com/ugd/c7ef1a_2abf092653824d018b42a071bf8e9d47.pdf
- https://cdn.shopify.com/s/files/1/0464/6089/5384/files/berger_paints_annual_report_2017_pakistan.pdf
- https://cdn.shopify.com/s/files/1/0436/0211/6772/files/nudik.pdf
- https://cdn.shopify.com/s/files/1/0430/9542/5191/files/tifafopojujono.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_off00004e87.bine96f6a4f6a30c4c8b830f31dd5388b5a4920da0cfad913e33d0a6cf87aa10a37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E87 | 5568 bytes |
font_01_sfnt_off00006191.bin33e54dba2e843d54f9bfc8ffb98ce1e36f2a20ff93053e496b6b0b9b3df823ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6191 | 9852 bytes |
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