MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, masquerading as academic resources, to a redirector hosted on ttraff.com. This suggests a phishing or malware distribution attempt. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted from this sample.
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/wix?keyword=hubbard+obrien+macroeconomics+5th+ed
- https://cdn.shopify.com/s/files/1/0439/5122/7048/files/13676636399.pdf
- https://cdn.shopify.com/s/files/1/0433/7015/2088/files/dyslipidemia_guidelines_2019_aha.pdf
- https://cdn.shopify.com/s/files/1/0430/7946/7170/files/rival.pdf
- https://cdn.shopify.com/s/files/1/0447/6986/9975/files/dnd_paladin_build.pdf
- https://cdn.shopify.com/s/files/1/0429/8765/1235/files/45423856499.pdf
- https://cdn.shopify.com/s/files/1/0438/4188/0224/files/vobine.pdf
- https://cdn.shopify.com/s/files/1/0430/6694/9786/files/92504986267.pdf
- https://static.usrfiles.com/ugd/b8c837_41739e46bade405d8169c1762424a5e1.pdf
- https://static.usrfiles.com/ugd/b8c837_7c7dd89e9dab43968eb089672b0031c8.pdf
- https://static.usrfiles.com/ugd/b8c837_208b6b9e66bc4a1ba5edfd7a15364afd.pdf
- https://static.usrfiles.com/ugd/b8c837_ecf87b87e9d6415997fea48b7193cf8d.pdf
- https://static.usrfiles.com/ugd/b8c837_b64d46ce3954450886785b334430eb50.pdf
- https://static.usrfiles.com/ugd/b8c837_60aaf34d57d44d2e8efb5eab3e0cbb27.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_off00007b0d.binb092a67b71edeb2f981b414eaa106abe41b45453281d9fd716b766696952b62c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B0D | 5372 bytes |
font_01_sfnt_off00008d1f.bin1daf91f767282eb31854ffb656f60022567525785bf928a41303ee3f8c6dedc8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D1F | 10768 bytes |
font_02_sfnt_off0000b213.bind468e2025d029b3a3d7a43ae20aa00cd31cdc7ec2d62797e7da69b222902a676 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB213 | 17764 bytes |
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