MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL related to 'alcoholic gastritis patient information' which then leads to a redirector. The ML classifier strongly flagged this PDF as malicious. The presence of numerous links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. The document body, though heavily corrupted, contains fragments of the target URL and other Shopify links.
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=alcoholic+gastritis+patient+information
- http://petad.pymblemedicaldentalcentre.com/uploads/1/3/1/4/131437252/0ed32e6a86dda7c.pdf
- http://files.maakravmaga.com/uploads/1/3/1/4/131483719/bc9610836f45192.pdf
- http://files.the-gym.org/uploads/1/3/0/7/130775493/5ff0292e3.pdf
- https://cdn.shopify.com/s/files/1/0431/5673/4109/files/vurokovevakasome.pdf
- https://cdn.shopify.com/s/files/1/0430/3749/1357/files/toraj.pdf
- https://cdn.shopify.com/s/files/1/0431/7636/2150/files/come_dine_with_me_episode_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/6723/5742/files/metabolism_of_essential_amino_acids.pdf
- https://cdn.shopify.com/s/files/1/0428/8688/9639/files/printable_alphabet_worksheets_for_toddlers.pdf
- https://cdn.shopify.com/s/files/1/0434/1488/0405/files/gobirotev.pdf
- https://cdn.shopify.com/s/files/1/0431/5296/5792/files/toyota_automatic_transmission.pdf
- https://cdn.shopify.com/s/files/1/0429/3256/8220/files/acids_and_bases_worksheet_answers.pdf
- https://cdn.shopify.com/s/files/1/0433/0101/1614/files/23723253052.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_off0000603a.bin85b4d95f630461cbe566c52c23c28327aa31141d9f85ec9861b600339985544d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x603A | 5420 bytes |
font_01_sfnt_off00007276.bin2862753dcf9ad5eafdf82b611846e18e730a6170921aa9acf1fec9a4639874ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7276 | 10192 bytes |
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