MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious. The presence of a link farm suggests an attempt to manipulate search engine results or distribute content broadly. The primary malicious IOC is the redirector URL, which likely serves as a gateway 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.ru/wb?keyword=crop%20image%20from%20pdf
- http://files.cttntraumatraining.org/uploads/1/3/1/6/131606393/5b730abbd7ece.pdf
- http://files.nukkarepo.com/uploads/1/3/1/4/131437123/d6ded40bd8cde1.pdf
- http://vafamumu.daniellabloom.com/uploads/1/3/1/6/131606490/pubibexesisaxusuka.pdf
- https://cdn.shopify.com/s/files/1/0431/2439/2087/files/physical_examination_and_health_assessment_7th_edition_free.pdf
- https://cdn.shopify.com/s/files/1/0431/9713/7056/files/femidevewogodu.pdf
- https://cdn.shopify.com/s/files/1/0431/6200/9755/files/administrao_de_micro_e_pequenas_empresas.pdf
- https://cdn.shopify.com/s/files/1/0433/0350/1989/files/73850127362.pdf
- https://cdn.shopify.com/s/files/1/0434/1042/3960/files/5075857890.pdf
- https://cdn.shopify.com/s/files/1/0429/1595/4847/files/mipozikojurepadozub.pdf
- https://cdn.shopify.com/s/files/1/0429/4731/3827/files/51508132494.pdf
- https://cdn.shopify.com/s/files/1/0434/2090/9718/files/dosebezapu.pdf
- https://cdn.shopify.com/s/files/1/0434/8107/1782/files/tonimixizasubad.pdf
- https://cdn.shopify.com/s/files/1/0440/8619/8424/files/99976165642.pdf
- https://cdn.shopify.com/s/files/1/0429/2070/6204/files/fojatuluzidodusuketef.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006148.bin7b92d4ced847e4403df7e48e8803292951ee25fa30e6bf686ad7f0be05f1b03e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6148 | 3468 bytes |
font_01_sfnt_off00006dba.bina2c181e19d9ae044c18178e2c5eb99eac3d0b3d65c48a68ddfefb328aff69479 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DBA | 5056 bytes |
font_02_sfnt_off00007ed3.bin374eb4214e417320103b1cd318a73e2dcbe027bbef3d8ce5a6f2dab15b430bc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ED3 | 10016 bytes |
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