MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to what appears to be a link farm designed to host other PDFs. One prominent link redirects to a malicious domain, likely to deliver a secondary payload or phish for credentials. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=go+launcher+z+download+apk In PDF document text
- https://s3.amazonaws.com/matogapibelifiv/tigupe.pdfIn PDF document text
- https://s3.amazonaws.com/jiguwuzobozobaz/73277873681.pdfIn PDF document text
- https://s3.amazonaws.com/kudefem/6817871367.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365570/normal_5f8709a8247f9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368237/normal_5f9a47d5ed4a3.pdfIn PDF document text
- https://s3.amazonaws.com/dapekufoxiraku/ignou_assignment_front_page_2019.pdfIn PDF document text
- https://lefokanu.weebly.com/uploads/1/3/4/3/134377273/xifivosovut-dasurave-rujave-totuzejibut.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378853/normal_5f8fef0056d8b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380530/normal_5f90d34b9e77f.pdfIn PDF document text
- https://s3.amazonaws.com/tedowafomaru/81411597198.pdfIn PDF document text
- https://dorubirema.weebly.com/uploads/1/3/4/3/134317311/b64d77548bf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365661/normal_5f8721091c8e6.pdfIn PDF document text
- https://s3.amazonaws.com/bikikanafopavu/99919985639.pdfIn PDF document text
- https://sebonegipuwi.weebly.com/uploads/1/3/4/1/134108682/3937009.pdfIn PDF document text
- https://s3.amazonaws.com/farezelof/xunagoruwujelon.pdfIn PDF document text
- https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/bc2cb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/a7c7f76a-7e21-44ce-9b79-990063891306/rovaximopipugoperakeguz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fe60fc87-7d9d-4552-acfa-18d5f5383685/gender_in_cross_cultural_perspective.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/499a8d1b-e661-4a64-9274-827782599a86/vojofuvax.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5a9c26aa-7d11-436e-b148-50878a005976/zudujari.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000606c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x606C | 5220 bytes |
SHA-256: 263fb6a7cfb87536137cef9590f940cce47042d25d2233846bdfba8d15348de6 |
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font_01_sfnt_off00007246.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7246 | 12384 bytes |
SHA-256: b16a0f28d8e8b190e0f35df00fc2715482b95f677a72ea428fcda49759c23fad |
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