MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link that redirects to a malicious URL, disguised with a seemingly relevant keyword. The ML classifier strongly indicated maliciousness, and the PDF structure itself is flagged for containing a mass external PDF link farm, suggesting a spam or SEO poisoning campaign. The primary malicious IOC is the redirector URL.
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=brookfield+viscometer+procedure+pdf
- http://files.holisticbynonala.com/uploads/1/3/0/8/130874281/3160331.pdf
- http://files.davidbuiles.com/uploads/1/3/1/0/131071067/lewakerigejige.pdf
- http://files.shannondrhodes.com/uploads/1/3/0/8/130873907/1944747.pdf
- http://files.chandao.co.uk/uploads/1/3/0/8/130814902/bonapawujowi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jezimix.pdf
- https://cdn.shopify.com/s/files/1/0438/2910/0701/files/2992828605.pdf
- https://cdn.shopify.com/s/files/1/0437/4334/6839/files/bopexopuz.pdf
- https://cdn.shopify.com/s/files/1/0441/2240/7064/files/tozerelibana.pdf
- https://cdn.shopify.com/s/files/1/0434/6429/4557/files/vavub.pdf
- https://cdn.shopify.com/s/files/1/0433/9702/1854/files/70580735615.pdf
- https://cdn.shopify.com/s/files/1/0430/6750/6849/files/nukawomerimexuzi.pdf
- https://cdn.shopify.com/s/files/1/0431/1698/6534/files/the_walking_dead_season_6_123movies.pdf
- https://cdn.shopify.com/s/files/1/0435/8710/9023/files/4304863745.pdf
- https://cdn.shopify.com/s/files/1/0434/0455/8488/files/70979510713.pdf
- https://cdn.shopify.com/s/files/1/0433/4888/5662/files/gulorovezoti.pdf
- https://cdn.shopify.com/s/files/1/0429/5573/5193/files/cribbage_against_jake.pdf
- https://cdn.shopify.com/s/files/1/0436/7260/0726/files/kojupomos.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_off00006a1c.bin248cdaec74a5cda68ec0517786461f623e2f2a7b4573096f41fb381351e843c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A1C | 5264 bytes |
font_01_sfnt_off00007c06.bin1c6d4ba2ab4fa8cf91a4df8150351e15bde7057bcd810ed1e1c6a1580f901034 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C06 | 10692 bytes |
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