MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to attract traffic. The primary malicious URL identified is https://ttraff.com/pify?keyword=matura+angielski+s%25C5%2582%25C3%25B3wka+pdf, which is likely used to redirect users to further malicious content.
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.com/pify?keyword=matura+angielski+s%25C5%2582%25C3%25B3wka+pdf
- http://files.eloisekerr.co.uk/uploads/1/3/1/1/131164402/dumefawavevu.pdf
- http://nenurima.newportrecreation.org/uploads/1/3/1/0/131069839/952ac4910a.pdf
- http://files.karenhurd.com/uploads/1/3/1/8/131871850/kiwexixud.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0440/8341/3144/files/cae_gold_plus_exam_maximiser_2020_pdf.pdf
- https://cdn.shopify.com/s/files/1/0434/7274/8710/files/52261271703.pdf
- https://cdn.shopify.com/s/files/1/0434/5534/8888/files/97766571535.pdf
- https://cdn.shopify.com/s/files/1/0433/3905/5258/files/91146770340.pdf
- https://cdn.shopify.com/s/files/1/0427/8494/8380/files/fepewalid.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kenawuvotijogajutimev.pdf
- https://cdn.shopify.com/s/files/1/0435/5332/5224/files/easy_to_build_birdhouses.pdf
- https://cdn.shopify.com/s/files/1/0440/8888/5413/files/mevaxuvedagosabala.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
- https://cdn.shopify.com/s/files/1/0435/3831/7464/files/58603352790.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004a0a.bin897eb87dc69f2651978153978f9c71bb1d2d45245be3999ad5ee804ee54c21a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A0A | 5564 bytes |
font_01_sfnt_off00005cf3.binda4d1c67bd3c1cc13215022e784883da986b751964755846ba2152a1ddf255ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CF3 | 11144 bytes |
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