MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same search query as the malicious URL, suggesting a lure. The presence of numerous other PDF links, many pointing to benign Shopify domains, indicates a link farm strategy to obscure the malicious destination. The ML classifier strongly supports the malicious nature of this PDF.
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=advanced+life+support+erc+guidelines+2020+pdf
- http://gugosuku.garageworksphotography.com/uploads/1/3/1/6/131606183/vumovowopaxusilixeje.pdf
- http://files.devotionfarms.com/uploads/1/3/0/9/130969505/fedokafowegu.pdf
- http://files.blacksheepswimwear.com/uploads/1/3/2/3/132303019/02e3101d1b.pdf
- http://files.janeelizabethstudio.com/uploads/1/3/1/3/131397981/8358516.pdf
- https://cdn.shopify.com/s/files/1/0431/7737/7946/files/al_quran_kareem_free_download.pdf
- https://cdn.shopify.com/s/files/1/0447/4336/0663/files/human_body_anatomy_book.pdf
- https://cdn.shopify.com/s/files/1/0433/6776/0028/files/want_to_edit_file_for_free.pdf
- https://cdn.shopify.com/s/files/1/0430/0826/2297/files/4_color_personality_test.pdf
- https://cdn.shopify.com/s/files/1/0434/2412/0984/files/22064230276.pdf
- https://cdn.shopify.com/s/files/1/0429/5278/6074/files/92084546104.pdf
- https://cdn.shopify.com/s/files/1/0434/2831/5288/files/vobelojitewelaxu.pdf
- https://cdn.shopify.com/s/files/1/0431/2426/1026/files/fusubusudibux.pdf
- https://cdn.shopify.com/s/files/1/0430/7720/6165/files/smiley_face_copy_and_paste.pdf
- https://cdn.shopify.com/s/files/1/0435/8176/7848/files/fatelajanuwin.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_off00007286.bin692ed911747389ddf8bdb710b3b2d29f5335ec43438788d962017e77149126f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7286 | 5648 bytes |
font_01_sfnt_off000085d6.bin9b2c382069bfba3c7f0125e30dd14865d4fe5ff140ef8450dae43d98aa52b7e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85D6 | 10420 bytes |
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