MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by a machine learning classifier and contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body appears to be malformed or heavily obfuscated, preventing a clear understanding of its intended content beyond the presence of links. The primary attack pattern involves leveraging these links to redirect users to potentially harmful sites.
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.ru/pify?keyword=aditivos+acidulantes+pdf
- http://files.chambleesoccer.com/uploads/1/3/1/4/131483154/2ebd3bcf568325.pdf
- http://files.hopehomeinspections.com/uploads/1/3/0/8/130813461/5311040.pdf
- http://files.elitedayspakc.com/uploads/1/3/1/1/131163533/e523b6.pdf
- http://files.creativecounselingsrq.org/uploads/1/3/2/7/132710787/5366484.pdf
- https://cdn.shopify.com/s/files/1/0430/9755/5093/files/98987860731.pdf
- https://cdn.shopify.com/s/files/1/0432/5621/7750/files/73872362487.pdf
- https://cdn.shopify.com/s/files/1/0431/2032/8864/files/sofixitavu.pdf
- https://cdn.shopify.com/s/files/1/0434/1003/0759/files/98946468193.pdf
- https://cdn.shopify.com/s/files/1/0434/1334/0312/files/kofizopesewe.pdf
- https://cdn.shopify.com/s/files/1/0429/9656/4131/files/nufeluxonajugomed.pdf
- https://cdn.shopify.com/s/files/1/0437/1575/6182/files/62004975768.pdf
- https://cdn.shopify.com/s/files/1/0434/7111/0308/files/xavodufi.pdf
- https://cdn.shopify.com/s/files/1/0435/2756/9576/files/tamulumasud.pdf
- https://cdn.shopify.com/s/files/1/0432/5844/5979/files/49810906627.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006bea.bin3072979a21911120a8b78c0681697a962180e01e6cd78aabe787b18e10ca5324 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BEA | 4984 bytes |
font_01_sfnt_off00007cf5.bin1f71df9729586737d78ae6079cd8f2b44c0fdd1e437b4cb3b103ec4a2345d711 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CF5 | 9896 bytes |
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