MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF SEO link farm heuristic, with numerous links to Shopify-hosted PDFs, suggesting a coordinated effort to lure victims. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be social engineering via a malicious link embedded within the document.
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=present+simple+present+continuous+exercises+pdf+beginners
- http://files.tbrms.com/uploads/1/3/1/4/131409884/muwomuzo.pdf
- http://files.lifeunshattered.com/uploads/1/3/0/8/130814056/rigifap-juzimokubivo.pdf
- http://files.moraira-holidayvillas.com/uploads/1/3/0/7/130738823/xanapisutuwu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vexib.pdf
- https://cdn.shopify.com/s/files/1/0434/0878/5562/files/99923340171.pdf
- https://cdn.shopify.com/s/files/1/0431/0928/6050/files/dutimolepa.pdf
- https://cdn.shopify.com/s/files/1/0438/4695/9261/files/sakuz.pdf
- https://cdn.shopify.com/s/files/1/0431/9232/0161/files/pedimejimirepixax.pdf
- https://cdn.shopify.com/s/files/1/0427/8029/5334/files/31952900720.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bobidaxida.pdf
- https://cdn.shopify.com/s/files/1/0430/8579/1383/files/35752473970.pdf
- https://cdn.shopify.com/s/files/1/0431/7318/3643/files/7904117193.pdf
- https://cdn.shopify.com/s/files/1/0437/7821/1991/files/watakibalene.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/
- https://cdn.shopify.com
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c23.bin200a76adb45c531a03ce2c918f5af45031cadf020b04850522c7cfcb3680b4cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C23 | 5356 bytes |
font_01_sfnt_off00006e37.bin5f6fea68df8e0b05383e58b99f225654671bff87a84da9256c23e4c62ed6f5e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E37 | 9612 bytes |
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