MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text related to 'books for competitive exams' and a URL that appears to be part of a link farm designed to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.
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.cc/pify?keyword=general+awareness+books+for+competitive+exams+pdf
- http://files.wanderingbydesign.net/uploads/1/3/1/3/131380600/jalonotixoxasug.pdf
- http://files.chattahoocheeorchestra.com/uploads/1/3/2/6/132695602/1704164.pdf
- http://files.alligatoralliance.com/uploads/1/3/1/3/131379362/931915.pdf
- http://xutidorop.crazyartmama.com/uploads/1/3/2/6/132683001/5f69d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0430/9791/5545/files/42676840986.pdf
- https://cdn.shopify.com/s/files/1/0432/6601/5396/files/ssb_stenographer_syllabus_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/8669/9925/files/mixed_approach_to_research.pdf
- https://cdn.shopify.com/s/files/1/0430/0429/7375/files/78433841938.pdf
- https://cdn.shopify.com/s/files/1/0446/9719/0556/files/que_son_las_varices_esofagicas.pdf
- https://cdn.shopify.com/s/files/1/0431/6440/1818/files/congestive_heart_failure_esc_guideline.pdf
- https://cdn.shopify.com/s/files/1/0439/2812/5608/files/20350270370.pdf
- https://cdn.shopify.com/s/files/1/0432/4638/7362/files/53478592007.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/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000773f.bin8cf89fc624d9549bce8eef16184874a699497cfb35e2018989dc482de0b31c73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x773F | 5544 bytes |
font_01_sfnt_off00008a18.bin253021af989aa2030cd1e6fedaf3060e6b9ec023100c57a8af21e8d7b4de4c30 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A18 | 9980 bytes |
font_02_sfnt_off0000ac48.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC48 | 4324 bytes |
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