MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which are designed to appear as legitimate documents but lead to a link farm. One of these links, 'https://ttraff.ru/pify?keyword=pdf+antropologia+social', is identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body itself is heavily obfuscated and contains embedded URLs, suggesting a lure to external malicious content.
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=pdf+antropologia+social
- http://files.joanlinnehan.com/uploads/1/3/2/8/132816096/bozurijuwuda-tebupuj-lojenoxato-tupebenederi.pdf
- http://badiradi.agorapublications.com/uploads/1/3/0/7/130776445/saxadibezafo.pdf
- http://files.communitychurchofkeystoneheights.org/uploads/1/3/2/3/132302872/6017342.pdf
- https://cdn.shopify.com/s/files/1/0433/0258/4480/files/juvefeg.pdf
- https://cdn.shopify.com/s/files/1/0431/1446/3386/files/68006850816.pdf
- https://cdn.shopify.com/s/files/1/0431/5113/0785/files/44633086911.pdf
- https://cdn.shopify.com/s/files/1/0431/3631/9639/files/abstract_class_in_cpp.pdf
- https://cdn.shopify.com/s/files/1/0430/1750/2869/files/gafubibatowawuzukev.pdf
- https://cdn.shopify.com/s/files/1/0438/6072/1829/files/58851783831.pdf
- https://cdn.shopify.com/s/files/1/0434/2143/4005/files/29261418665.pdf
- https://cdn.shopify.com/s/files/1/0432/2073/0011/files/saxizibodunemura.pdf
- https://cdn.shopify.com/s/files/1/0439/1793/4747/files/33947886514.pdf
- https://cdn.shopify.com/s/files/1/0430/8933/0325/files/romoke.pdf
- https://cdn.shopify.com/s/files/1/0433/1179/2286/files/71765242815.pdf
- https://cdn.shopify.com/s/files/1/0428/8266/2553/files/jitezun.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_off000063e3.binfa1caf869f06b0cb06278d34b801a6f1a2c4030ba77c86504a2fd2de9ff9d872 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63E3 | 5324 bytes |
font_01_sfnt_off00007609.binf161b96dcfd9fc8fb4b932b4f8cd7077755409ac276c0a43657f5e31eff3b8cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7609 | 9924 bytes |
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