MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.ru/pify. The document body, though heavily obfuscated, contains text related to 'hand lettering practice book pdf' and the malicious URL, suggesting a lure. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be directing users to malicious infrastructure.
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=hand+lettering+practice+book+pdf
- http://files.melwycked.com/uploads/1/3/2/6/132682829/7338453.pdf
- http://sawev.upperskagitlibraryfoundation.org/uploads/1/3/2/7/132740214/jesubuzeperozune.pdf
- https://cdn.shopify.com/s/files/1/0429/2512/9891/files/52089533561.pdf
- https://cdn.shopify.com/s/files/1/0431/9802/1793/files/cash_flow_forecast_template.pdf
- https://cdn.shopify.com/s/files/1/0432/6352/5029/files/xurimedudofutem.pdf
- https://cdn.shopify.com/s/files/1/0430/9182/0711/files/rufagixuzararak.pdf
- https://cdn.shopify.com/s/files/1/0432/0441/1556/files/java_1._5_jdk_jre.pdf
- https://cdn.shopify.com/s/files/1/0456/9146/9983/files/46204132147.pdf
- https://cdn.shopify.com/s/files/1/0440/1764/7766/files/filtrage_analogique.pdf
- https://cdn.shopify.com/s/files/1/0434/0911/3240/files/fadupelokowezuza.pdf
- https://cdn.shopify.com/s/files/1/0428/8672/5795/files/bulbulay_drama_season_2.pdf
- https://cdn.shopify.com/s/files/1/0430/4555/2277/files/minecraft_server_api.pdf
- https://cdn.shopify.com/s/files/1/0434/0734/3779/files/arkitektura_shqiptare.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_off00006122.bind8d5715b9211ef70552db9a9ae5f96d3aaa55a07b483ea56722fd55b795b2997 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6122 | 5312 bytes |
font_01_sfnt_off00007333.bind5daaf77eaf56280fd16312d6a4b673fe2b0078eae1e34b57b1b4b33acd95eec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7333 | 10476 bytes |
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