MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body, though heavily obfuscated, contains the same URL and a reference to a piano sheet music PDF, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a malicious site.
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=everything+at+once+piano+sheet+music+pdf
- http://files.marketmovesmatt.com/uploads/1/3/0/8/130874629/nuvigure-bufagejiv.pdf
- https://cdn.shopify.com/s/files/1/0430/1763/3945/files/city_of_arvada_co_sales_tax_form.pdf
- https://cdn.shopify.com/s/files/1/0431/0705/7825/files/roletejipe.pdf
- https://cdn.shopify.com/s/files/1/0433/8037/5702/files/tivoxivotuta.pdf
- https://cdn.shopify.com/s/files/1/0447/7802/9213/files/45529118659.pdf
- https://cdn.shopify.com/s/files/1/0432/8095/7598/files/57470614003.pdf
- https://cdn.shopify.com/s/files/1/0432/3606/5438/files/definition_of_cost_accounting_by_different_authors.pdf
- https://cdn.shopify.com/s/files/1/0432/5376/0160/files/jajabonagapuza.pdf
- https://cdn.shopify.com/s/files/1/0432/5038/5051/files/solija.pdf
- https://cdn.shopify.com/s/files/1/0433/9941/3921/files/20493942181.pdf
- https://cdn.shopify.com/s/files/1/0434/6799/7344/files/attestation_de_fin_de_stage_en_entreprise.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007504.binfc424d102643c5d159cde677ae9225bf73fb9c8420bdfea034a99f3573848f5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7504 | 5656 bytes |
font_01_sfnt_off00008827.bin3233cac1e302e1259d8772b2ae0c22a4c20d478ccad42c33382b4f80314f682b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8827 | 10308 bytes |
font_02_sfnt_off0000aba8.bind973db94ba2c448c661c26f08d051ac794e7cb4f3c7daa33c2141e8036f071b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABA8 | 16100 bytes |
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