MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was identified as malicious due to a high number of embedded external links, with one specifically pointing to known malicious redirector infrastructure at https://ttraff.ru/wix?keyword=skyrim+briarheart+necropsy. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the same suspicious URL and a list of shopify URLs, suggesting a link farm or redirection scheme. No scripts were extracted, but the primary attack pattern appears to be leveraging link farms to distribute 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/wix?keyword=skyrim+briarheart+necropsy
- https://cdn.shopify.com/s/files/1/0435/9864/3363/files/18444119048.pdf
- https://cdn.shopify.com/s/files/1/0432/4697/7188/files/8117677182.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15518423203.pdf
- https://cdn.shopify.com/s/files/1/0428/0126/6851/files/romapopasupafumogulodozim.pdf
- https://static.usrfiles.com/ugd/b8c837_cb993aec78354c05bc22b84878ffdd64.pdf
- https://static.usrfiles.com/ugd/b8c837_1351572647e1432a8131b2b08e7c330b.pdf
- https://static.usrfiles.com/ugd/6240f8_bd6bd463b20b475d9e17374cc0c13447.pdf
- https://static.usrfiles.com/ugd/90c678_154e91838ff943c7b8ccb5a371868e08.pdf
- https://static.usrfiles.com/ugd/b8c837_25ac3e0f25bb42f1a1fc6501181d2e5f.pdf
- https://static.usrfiles.com/ugd/79cb75_af7cac9a2c1c4996aecaa8ff3598fa12.pdf
- https://static.usrfiles.com/ugd/b8c837_3e01101c276c4def90c95f0ac247a265.pdf
- https://cdn.shopify.com/s/files/1/0427/8039/3639/files/annamayya_full_movie_hd.pdf
- https://cdn.shopify.com/s/files/1/0437/0700/7127/files/53688413131.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_off00005ce3.bin2c0d47647561caf16924ddfb6304404c5ba3b3f8174df238de0a569b967ef6e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CE3 | 5552 bytes |
font_01_sfnt_off00006f9e.binc541f3c6786e5951111067cb28d16ca9c9d56dd2c96340215d854a4ef90c805e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F9E | 10024 bytes |
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