MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'body parts esl vocabulary memory game' and the malicious URL, suggesting a lure to entice users to click the link. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. The ML classifier also strongly flagged this PDF as malicious.
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=body+parts+esl+vocabulary+memory+game
- https://cdn.shopify.com/s/files/1/0429/3961/3347/files/foxajirov.pdf
- https://cdn.shopify.com/s/files/1/0428/9062/5191/files/spring_boot_resttemplate_connection_pool_size.pdf
- https://cdn.shopify.com/s/files/1/0431/2114/8061/files/10484713676.pdf
- https://cdn.shopify.com/s/files/1/0440/8341/3142/files/unsw_transcript_request_form.pdf
- https://cdn.shopify.com/s/files/1/0433/6661/3141/files/58119027268.pdf
- https://static.usrfiles.com/ugd/b8c837_15e476fb881f4d30ba11ea5f63b6d2c8.pdf
- https://static.usrfiles.com/ugd/b8c837_949bcddcbd734bbcaf75a39819f57f67.pdf
- https://static.usrfiles.com/ugd/b8c837_97ae035b272045479be49a6e15ce87e1.pdf
- https://static.usrfiles.com/ugd/b8c837_6c05a8106e4f4d20abb1ec9ebb321216.pdf
- https://cdn.shopify.com/s/files/1/0431/7514/9719/files/28095995476.pdf
- https://cdn.shopify.com/s/files/1/0438/4843/3829/files/free_anime_slayer_for_pc.pdf
- https://cdn.shopify.com/s/files/1/0431/2930/7293/files/wurunulatananu.pdf
- https://cdn.shopify.com/s/files/1/0432/1725/6605/files/70160108491.pdf
- https://cdn.shopify.com/s/files/1/0448/2033/2705/files/20902424059.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_off00006043.bin815bd75bcfa38f11e13acb26f11158cadb8e2293be4ed12ca40576b51ae24bd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6043 | 5744 bytes |
font_01_sfnt_off000073c8.bin1a5698b22e6032723aa20a25986bfce840e3fb8aa02726dd9790d2f4064938b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73C8 | 10264 bytes |
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