MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The ML classifier also strongly indicated maliciousness. The document body, though corrupted, contains the URL that triggered the PDF_MALICIOUS_REDIRECTOR_LINK heuristic, suggesting a lure to external 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.com/pify?keyword=chemical+abstracts+service+registry+number+free
- http://files.grantbomberbarker.com/uploads/1/3/0/8/130814535/wifilubab.pdf
- http://letopa.atelierstlouis.com/uploads/1/3/2/6/132695269/powiladozusipu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/8212/8283/files/kakonaruwopolumaf.pdf
- https://cdn.shopify.com/s/files/1/0434/8362/7686/files/xixafijute.pdf
- https://cdn.shopify.com/s/files/1/0439/4260/9051/files/62747429834.pdf
- https://cdn.shopify.com/s/files/1/0430/3486/9921/files/51378227015.pdf
- https://cdn.shopify.com/s/files/1/0428/9432/7975/files/pharmaceutical_importance_of_carbohydrates.pdf
- https://cdn.shopify.com/s/files/1/0431/4746/0768/files/39634843264.pdf
- https://cdn.shopify.com/s/files/1/0437/2388/2664/files/latalifomizoj.pdf
- https://cdn.shopify.com/s/files/1/0431/8511/1203/files/94129581128.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68905528383.pdf
- https://cdn.shopify.com/s/files/1/0430/6354/1917/files/american_football_history.pdf
- https://cdn.shopify.com/s/files/1/0431/0381/3781/files/semepanoj.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060b9.bindb36f68e965b840d408e55a3c2cad56f1576feabcb5d911496d88d9a88bbf150 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60B9 | 5500 bytes |
font_01_sfnt_off00007351.binb621c34213dfcb1c7ebe646b40b1d0e406556a5402da4f6e6e5eae571ec54905 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7351 | 10536 bytes |
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