MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, includes the same malicious URL and a benign-looking PDF title, suggesting a lure. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves redirecting users to malicious infrastructure via embedded links.
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/pify?keyword=essential+grammar+in+use+supplementary+exercises+with+key+pdf
- http://files.svgreatschools.org/uploads/1/3/1/4/131407194/jorosemija.pdf
- http://files.nmnawgj.com/uploads/1/3/2/6/132682134/jiwekenado_mumanujotipinub_benenufab_keridu.pdf
- http://files.timnordphoto.net/uploads/1/3/1/3/131398487/pifipidurotitof.pdf
- https://cdn.shopify.com/s/files/1/0440/7522/1144/files/install_docker_on_windows.pdf
- https://cdn.shopify.com/s/files/1/0431/1980/4578/files/nigisa.pdf
- https://cdn.shopify.com/s/files/1/0432/0926/1217/files/biredorifamubelib.pdf
- https://cdn.shopify.com/s/files/1/0433/7441/1926/files/89384047326.pdf
- https://cdn.shopify.com/s/files/1/0436/2344/8736/files/twisted_murderer_script.pdf
- https://cdn.shopify.com/s/files/1/0428/1656/9500/files/49764663038.pdf
- https://cdn.shopify.com/s/files/1/0432/3888/3495/files/daria_restoration_project.pdf
- https://cdn.shopify.com/s/files/1/0431/4539/6386/files/banavelejo.pdf
- https://cdn.shopify.com/s/files/1/0432/1814/1347/files/8576075637.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_off00004204.bind4b92565177b3c8e41ac674f0f6c8c7e7f4e68f1db9e4eae9546356e572f1db8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4204 | 5852 bytes |
font_01_sfnt_off000055e8.bina56008c5fbdbf2cc8f302d542af9a80e4911f6b4536b17b1cf8da286123fa3df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55E8 | 10480 bytes |
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