MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is https://ttraff.com/pify?keyword=oxford+medical+concise+dictionary+free, which is likely part of a redirection chain. Numerous other links to PDFs hosted on Shopify and other domains were also found, contributing to the link farm heuristic.
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=oxford+medical+concise+dictionary+free
- http://lofugubi.5dperformancehorses.com/uploads/1/3/0/8/130874493/0dbbe.pdf
- http://sikujos.agefriendlysarnia.com/uploads/1/3/2/6/132696056/lerur.pdf
- https://cdn.shopify.com/s/files/1/0435/9330/2178/files/rejug.pdf
- https://cdn.shopify.com/s/files/1/0435/2478/4292/files/mezejibizaguxugu.pdf
- https://cdn.shopify.com/s/files/1/0435/7121/6542/files/understanding_capital_markets.pdf
- https://cdn.shopify.com/s/files/1/0431/8052/3681/files/xajomozemazumu.pdf
- https://cdn.shopify.com/s/files/1/0432/3626/2052/files/dictionnaire_apocryphe.pdf
- https://cdn.shopify.com/s/files/1/0434/4047/2229/files/nugenuzinit.pdf
- https://cdn.shopify.com/s/files/1/0434/0334/6078/files/28747457654.pdf
- https://cdn.shopify.com/s/files/1/0432/1764/9819/files/the_cask_of_amontillado_annotations.pdf
- https://cdn.shopify.com/s/files/1/0432/5651/2680/files/vetadadawaxomonaxakifafu.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_off0000623c.bin72e8a166dfe1e7fd7e31be103103e548fdc5ece4c649451d3dee61d665521ef5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x623C | 5152 bytes |
font_01_sfnt_off000073b1.bin9746e9008b4fe9a750b8ebf1f266166a1e6ca244313bfedeac1cf753a7cc9877 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73B1 | 9924 bytes |
font_02_sfnt_off00009594.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9594 | 4324 bytes |
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