MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains a URL that is also present in the embedded link list, suggesting an attempt to lure the user to a malicious site. The presence of a link farm heuristic further supports the malicious intent.
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.club/123?keyword=sheltered+english+instruction+pros+and+cons
- https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/fubazewi.pdf
- https://cdn-cms.f-static.net/uploads/4385880/normal_5fa0fba40818b.pdf
- https://kabolonopatine.weebly.com/uploads/1/3/4/2/134265344/todigudelona.pdf
- https://cdn-cms.f-static.net/uploads/4373516/normal_5f8ab7a01133c.pdf
- https://cdn-cms.f-static.net/uploads/4375515/normal_5f9cd59c018de.pdf
- https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/0836f2c35d91f.pdf
- https://cdn-cms.f-static.net/uploads/4376619/normal_5f9ae3d03882a.pdf
- https://cdn-cms.f-static.net/uploads/4369777/normal_5f886c605d41d.pdf
- https://wodedofa.weebly.com/uploads/1/3/4/3/134320626/b0933e22.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/sodoxi/bloons_tower_defense_4_expansion_unblocked.pdf
- https://cdn.shopify.com/s/files/1/0431/8576/6564/files/harvard_summer_institute_on_college_admissions.pdf
- https://s3.amazonaws.com/mejigavukolu/editing_to_word.pdf
- https://s3.amazonaws.com/gupuso/lepebatadulobem.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_off00005de6.binaff767af37d40065dc4e4b6d6c5f48602bc708e92e44096eed8a2e69f652bb19 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DE6 | 5436 bytes |
font_01_sfnt_off0000705a.bincb5c3f9bde456d43470a096472643f5453a6b01fbcef206ae4082991bba93d8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x705A | 10180 bytes |
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