MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link disguised as 'Aptitude test questions and answers in tamil pdf' which redirects to a malicious URL. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or redirection tactic. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.
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=aptitude+test+questions+and+answers+in+tamil+pdf
- http://files.devokehunters.com/uploads/1/3/1/4/131454505/4fcff8aa49.pdf
- http://files.zambiasafarihunting.com/uploads/1/3/0/8/130874394/xodosafaniku-jovetujam-vuref.pdf
- http://files.unclerhetts.com/uploads/1/3/0/8/130814855/sanebegu-wexibasukokuk-tujabovaleki-tosekavironiti.pdf
- http://files.zambiasafarihunting.com/uploads/1/
- https://cdn.shopify.com/s/files/1/0434/1547/0245/files/37907598617.pdf
- https://cdn.shopify.com/s/files/1/0432/0477/1999/files/21656861861.pdf
- https://cdn.shopify.com/s/files/1/0433/7837/6853/files/kefawujatelalaxazaxe.pdf
- https://cdn.shopify.com/s/files/1/0434/4807/4396/files/peranafekixob.pdf
- https://cdn.shopify.com/s/files/1/0430/7383/1073/files/supuzodufera.pdf
- https://cdn.shopify.com/s/files/1/0431/2160/6817/files/lorusubilufawev.pdf
- https://cdn.shopify.com/s/files/1/0440/4091/3061/files/42151686116.pdf
- https://cdn.shopify.com/s/files/1/0430/7812/3680/files/81922548088.pdf
- https://cdn.shopify.com/s/files/1/0430/9676/8673/files/32222195416.pdf
- https://cdn.shopify.com/s/files/1/0430/8228/5216/files/dipuwux.pdf
- https://cdn.shopify.com/s/files/1/0432/2351/5294/files/78060304737.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_off00006d33.bin5d3bc9f69687b839a98b71602cdf43354f5361f338d1f5215933de995197c4aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D33 | 5396 bytes |
font_01_sfnt_off00007f89.binfbbf3c240ef28992b09cb6221753471a58c02135bcd9e136e194ee2645c12978 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F89 | 15356 bytes |
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