MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which likely serves as a lure or initial access point. Another critical heuristic indicates a large PDF link farm, with many links pointing to external PDF files hosted on domains like cdn.shopify.com, suggesting a potential SEO manipulation or content distribution scheme. No scripts were extracted from this sample.
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=auxiliary+verbs+pdf
- http://files.cure-sort.org/uploads/1/3/1/3/131378990/3248812.pdf
- http://files.rosannavanmierlo.com/uploads/1/3/0/7/130775126/zebemekaxud-dobezerejarosop-nexumejosar.pdf
- http://files.swissblisstravel.co.uk/uploads/1/3/0/8/130814258/107adc026dc8.pdf
- https://cdn.shopify.com/s/files/1/0430/8316/9943/files/rarixigonixagoso.pdf
- https://cdn.shopify.com/s/files/1/0429/8866/7039/files/zedupekerirelibigu.pdf
- https://cdn.shopify.com/s/files/1/0435/8563/4463/files/44228419017.pdf
- https://cdn.shopify.com/s/files/1/0437/8873/0525/files/34176504530.pdf
- https://cdn.shopify.com/s/files/1/0431/0607/4778/files/biogas_plant_project_for_students.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39843759369.pdf
- https://cdn.shopify.com/s/files/1/0431/0273/2448/files/fred_boat_commands.pdf
- https://cdn.shopify.com/s/files/1/0432/0336/2973/files/pupilifizorakadukiwajudis.pdf
- https://cdn.shopify.com/s/files/1/0428/5035/3318/files/zekaj.pdf
- https://cdn.shopify.com/s/files/1/0433/1238/2116/files/40503214178.pdf
- https://cdn.shopify.com/s/files/1/0432/5205/6227/files/13482128959.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_off00006701.bind6ddb2d5dbe6695b21432b9b78e201218b6ba33990c447bb3c55b7036b1d1795 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6701 | 5392 bytes |
font_01_sfnt_off00007971.binf88b9460ed3d620876476ae17ea18b37a567f81c8fa64a14913c9c239551d384 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7971 | 9948 bytes |
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