MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a malicious URL, disguised with keywords relevant to a tutorial. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the redirector. The ML classifier also strongly indicates maliciousness. The document body, though heavily obfuscated, contains the malicious URL and keywords suggesting a lure.
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=android+studio+java+tutorial+pdf
- http://posome.kristenwambach.com/uploads/1/3/0/8/130874254/7d7f0e397e25b22.pdf
- http://files.ucssp.com/uploads/1/3/2/7/132712306/5d8956f.pdf
- http://voduf.ginwgolf.org/uploads/1/3/1/6/131606289/porepomoliruw.pdf
- http://dofetago.midwestpark75.com/uploads/1/3/1/6/131606027/928cb.pdf
- https://cdn.shopify.com/s/files/1/0437/6854/5441/files/94806619391.pdf
- https://cdn.shopify.com/s/files/1/0432/3927/6699/files/unisa_payment_methods.pdf
- https://cdn.shopify.com/s/files/1/0431/8697/8984/files/dikikifepojetekofodivot.pdf
- https://cdn.shopify.com/s/files/1/0429/3538/6265/files/13103580022.pdf
- https://cdn.shopify.com/s/files/1/0432/4530/6011/files/ganarofokopotokogazon.pdf
- https://cdn.shopify.com/s/files/1/0429/2847/2220/files/49666204304.pdf
- https://cdn.shopify.com/s/files/1/0431/1816/6167/files/favosemamosowurazunoz.pdf
- https://cdn.shopify.com/s/files/1/0434/8251/3561/files/momatuvazimavesunofidexuw.pdf
- https://cdn.shopify.com/s/files/1/0430/9365/5716/files/auto_body_repair_manual.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_off0000e9b6.bin2efd0bf3fa24217a1ac788f680482f7b81a909b464a7a55ba029c114f2b22143 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9B6 | 5160 bytes |
font_01_sfnt_off0000fb5d.bin7f9c64584632db775dd3f8795a76e5edec83400c7ac535d07ae3f40a6c549b24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB5D | 14948 bytes |
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