Malware Insights
The PDF file contains a malicious redirector link disguised as an academic document, specifically a 'Marksheet of class 10 bseb 2019'. The primary malicious URL, https://ttraff.ru/pify?keyword=marksheet+of+class+10+bseb+2019, is flagged as a known malicious redirector. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various domains, many of which are hosted on Shopify. The ML classifier strongly indicates maliciousness. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is the primary indicator of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=marksheet+of+class+10+bseb+2019
- http://files.thestoryexploratory.com/uploads/1/3/1/6/131637640/c52f4.pdf
- http://files.thebarefootmomma.com/uploads/1/3/2/6/132696128/468b82da8f041c.pdf
- http://files.scarlettcrawford.com/uploads/1/3/1/0/131071258/bokajudaz.pdf
- http://kalirewek.prospectorpark.com/uploads/1/3/0/8/130874493/4903526.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mufowotipopugisafe.pdf
- https://cdn.shopify.com/s/files/1/0432/2417/0664/files/57111013601.pdf
- https://cdn.shopify.com/s/files/1/0434/3247/6838/files/34792998917.pdf
- https://cdn.shopify.com/s/files/1/0437/1713/2456/files/35335089008.pdf
- https://cdn.shopify.com/s/files/1/0431/6656/4520/files/43349206091.pdf
- https://cdn.shopify.com/s/files/1/0430/1671/6437/files/wurafuk.pdf
- https://cdn.shopify.com/s/files/1/0432/9901/2763/files/vozevaneban.pdf
- https://cdn.shopify.com/s/files/1/0434/2313/7957/files/bsci_code_of_conduct_bangla.pdf
- https://cdn.shopify.com/s/files/1/0429/8987/9445/files/71292981891.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34515707504.pdf
- https://cdn.shopify.com/s/files/1/0428/3521/4503/files/casebook_on_contract_law_jill_poole_13th_edition.pdf
- https://cdn.shopify.com/s/files/1/0440/6935/5670/files/24510830091.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_off00006149.binc91e073fcf564340c4f73465897b8c7b73b683e901b26d630105fe5990ee7fef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6149 | 5660 bytes |
font_01_sfnt_off0000748d.bin92d354562cf18d77c5b8fa80efe6fb7ccea064dd86e0f6ef0cb54179ea4bd48a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x748D | 10308 bytes |
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