MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a 'Delhi university date sheet', suggesting a lure. The ML classifier strongly flagged this PDF as malicious. The primary IOC is the redirector URL, which is designed to lead users to further malicious content.
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=delhi+university+date+sheet+ba+programme+2018
- https://cdn.shopify.com/s/files/1/0431/1062/9532/files/crabber_24_test_report.pdf
- https://cdn.shopify.com/s/files/1/0434/2707/0104/files/bakelite_reading_passage_answers.pdf
- https://cdn.shopify.com/s/files/1/0428/3770/4867/files/pikedapur.pdf
- https://cdn.shopify.com/s/files/1/0429/6255/0940/files/jifexifabatavajimol.pdf
- https://cdn.shopify.com/s/files/1/0431/3494/3388/files/96310842789.pdf
- https://cdn.shopify.com/s/files/1/0439/4598/4158/files/tratamiento_nutricional_para_el_alzheimer.pdf
- https://cdn.shopify.com/s/files/1/0440/5483/9461/files/afrontamiento_de_problemas.pdf
- https://cdn.shopify.com/s/files/1/0462/3918/7104/files/82130653950.pdf
- https://cdn.shopify.com/s/files/1/0430/6645/8265/files/fisiwoxodugatanugofufomu.pdf
- https://cdn.shopify.com/s/files/1/0432/1309/5067/files/nowirisudutoz.pdf
- https://cdn.shopify.com/s/files/1/0429/9282/8579/files/detafobevoz.pdf
- https://cdn.shopify.com/s/files/1/0462/2267/2025/files/ranenizoseludenen.pdf
- https://cdn.shopify.com/s/files/1/0431/1308/7142/files/34154812590.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_off0000765f.bin5e4650f119a6cc10c299aca61ca96f9ab898dbe2badd7e3dd0c39905742bb5bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x765F | 6196 bytes |
font_01_sfnt_off00008b54.bin22a36ecd15643e9284b4d2d7ed4bebb9d27772a1f63f95d14fe8c7fc27f09bbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B54 | 15388 bytes |
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