MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Web design course outline pdf' and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many hosted on Shopify, likely to obscure the malicious redirector. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious verdict.
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=web+design+course+outline+pdf
- http://files.mropinionhead.com/uploads/1/3/0/9/130969809/ripemevuwol.pdf
- http://files.gracespringhill.com/uploads/1/3/0/8/130874639/kumuxitetove.pdf
- http://files.benedictbrooks.com/uploads/1/3/1/4/131483275/5695860.pdf
- http://files.klamathmosquito.org/uploads/1/3/1/4/131453536/2792825.pdf
- https://cdn.shopify.com/s/files/1/0429/6045/3785/files/guvademebiluw.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96989945255.pdf
- https://cdn.shopify.com/s/files/1/0437/7139/6257/files/vanomidotof.pdf
- https://cdn.shopify.com/s/files/1/0429/0949/9558/files/26816944911.pdf
- https://cdn.shopify.com/s/files/1/0440/6404/7269/files/79585399330.pdf
- https://cdn.shopify.com/s/files/1/0431/1125/2132/files/22354788342.pdf
- https://cdn.shopify.com/s/files/1/0428/4504/4892/files/39535416375.pdf
- https://cdn.shopify.com/s/files/1/0428/1637/2892/files/diniwefa.pdf
- https://cdn.shopify.com/s/files/1/0428/5123/8047/files/pibebamimotusofiwudapovej.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/
- https://cdn.shopify.com/s/files/1/0429/6045/378
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008eb5.bin1e3183bf2e4f5a30532fa13759b2a00515e41084f8beb767d87aee35ec2c102b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EB5 | 5264 bytes |
font_01_sfnt_off0000a0bb.bin2be8118ef59360b651f908e6c36de2dca90f12ed0bccc58362959f0455b3f5dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0BB | 10188 bytes |
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