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 designed to obscure the final destination. The primary link identified leads to a known malicious redirector, suggesting an attempt to lead the user to a malicious site under the guise of an application update. The ML classifier strongly indicates maliciousness, and the PDF structure is consistent with link farm abuse.
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=4+liker+app++new+version+2018
- http://boxuv.emathacademy.com/uploads/1/3/0/7/130776445/1736911.pdf
- http://files.tundratour.com/uploads/1/3/1/4/131408204/nomofi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/4023/4902/files/97693375005.pdf
- https://cdn.shopify.com/s/files/1/0430/9663/7597/files/7363842630.pdf
- https://cdn.shopify.com/s/files/1/0433/4272/5285/files/jaligorud.pdf
- https://cdn.shopify.com/s/files/1/0427/7446/2631/files/fidovizigunafawigedo.pdf
- https://cdn.shopify.com/s/files/1/0431/3173/2132/files/79522079994.pdf
- https://cdn.shopify.com/s/files/1/0429/1765/8780/files/character_motivation_worksheet_8th_grade.pdf
- https://cdn.shopify.com/s/files/1/0428/7974/6201/files/66960110567.pdf
- https://cdn.shopify.com/s/files/1/0429/8693/0329/files/81691951845.pdf
- https://cdn.shopify.com/s/files/1/0430/8860/9429/files/classification_of_matter_quiz.pdf
- https://cdn.shopify.com/s/files/1/0434/8759/2608/files/39329234062.pdf
- https://cdn.shopify.com/s/files/1/0431/4729/6922/files/ziwoluvopiz.pdf
- https://cdn.shopify.com/s/files/1/0428/1024/5286/files/6355735208.pdf
- https://cdn.shopify.com/s/files/1/0450/4230/3140/files/video_surah_al_mulk.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_off00007ed1.bin664b487bb98143271086095dabb4001ead6e67e4c063dec28ff798b4b62d2e8b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ED1 | 5544 bytes |
font_01_sfnt_off000091d5.bin24900ca5313f801917f397955917411bc2379a5e3f3d7de6df6f7499c628b314 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91D5 | 9904 bytes |
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