MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with many links pointing to suspicious domains. One prominent link, https://ttraff.ru/wb?keyword=convulsiones%20pdf%20pediatria, is identified as a malicious redirector. The document body also contains numerous links to PDF files hosted on various domains, suggesting a coordinated effort to distribute malicious content or redirect users to potentially harmful sites. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attack.
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=convulsiones%20pdf%20pediatria
- http://files.mackeiganmarketing.com/uploads/1/3/1/4/131452732/sodopafesub.pdf
- http://files.dwightspaulding.net/uploads/1/3/2/6/132681343/8a78961a92ad25.pdf
- http://files.firstathens.org/uploads/1/3/2/7/132710687/9347935.pdf
- http://files.almeria-estates-and-realty.com/uploads/1/3/1/4/131437351/fefozo.pdf
- http://files.nejnamc.org/uploads/1/3/1/6/131607346/bujowadatasivo.pdf
- http://files.clovisbethel.org/uploads/1/3/0/9/130969532/8193835.pdf
- http://files.fhcamd.org/uploads/1/3/1/6/131637034/5932877.pdf
- http://files.innerdolphinawakening.com/uploads/1/3/1/6/131606035/kumuvefajolen.pdf
- http://files.haciendasonoma.com/uploads/1/3/2/7/132740218/7130198.pdf
- https://xiwosol.files.wordpress.com/2020/07/kodilixovatarewoko.pdf
- https://kotosidimof.files.wordpress.com/2020/06/69671021716.pdf
- https://gosijanasi.files.wordpress.com/2020/06/88997986365.pdf
- https://pamilegimo.files.wordpress.com/2020/06/ranuvigevemef.pdf
- https://sivutis.files.wordpress.com/2020/06/nuxojomulabagepa.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_off0000c35a.bin70552844ec82d37608c7752332f88853a12bea42ed3748ec0649d2439d2ac196 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC35A | 5000 bytes |
font_01_sfnt_off0000d46b.bin69e2a535ca1f28cbcc2d77a7502193f9e87b129e14e938acd0c7d7949e5754fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD46B | 11184 bytes |
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