MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on 'cdn.shopify.com', suggesting a link farm or SEO poisoning tactic. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be social engineering via a deceptive link within the 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=bases+nitrogenadas+purinas+y+pirimidinas+pdf
- http://perep.darcythomasdo.com/uploads/1/3/2/7/132712324/siwijisixonujugakumu.pdf
- https://cdn.shopify.com/s/files/1/0431/9494/1603/files/discovering_psychology.pdf
- https://cdn.shopify.com/s/files/1/0435/9448/1821/files/fufotukimafanexulut.pdf
- https://cdn.shopify.com/s/files/1/0440/1224/1046/files/51673342557.pdf
- https://cdn.shopify.com/s/files/1/0460/3189/6740/files/debate_writing_format_class_8.pdf
- https://cdn.shopify.com/s/files/1/0435/4211/8555/files/windows_update_agent.pdf
- https://cdn.shopify.com/s/files/1/0431/0669/7367/files/38121790678.pdf
- https://cdn.shopify.com/s/files/1/0436/6126/3001/files/amazon_cloud_reader_to.pdf
- https://cdn.shopify.com/s/files/1/0439/5424/1694/files/verujopotogukovozeg.pdf
- https://cdn.shopify.com/s/files/1/0434/0016/7589/files/teaching_phonics_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0452/7711/8625/files/wowudupabirisokovupemi.pdf
- https://cdn.shopify.com/s/files/1/0432/4953/3088/files/dinamani_tamil_news_paper.pdf
- https://cdn.shopify.com/s/files/1/0429/9459/8047/files/gogoku.pdf
- https://cdn.shopify.com/s/files/1/0438/4922/0256/files/sublime_text_crack.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_off0000659e.bine9a484655a27765a767a779c6d49575e0a36a336bab62c0b2109b9cea73f2294 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x659E | 5480 bytes |
font_01_sfnt_off00007831.bin19e10d384a89958cc9db5caa723fff631dc7fe0b4951eab08595000750c23945 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7831 | 11260 bytes |
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