MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though heavily obfuscated, contains text related to 'SAS programming in pharmaceutical industry' and a URL, suggesting a lure to attract clicks. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent, possibly to redirect users to malicious sites or for SEO spam.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 4
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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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External URI info PDF_URIPDF contains an external URL action
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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://traffset.ru/aws?keyword=sas+programming+in+pharmaceutical+industry PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368972/normal_5f90d68d81b02.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410006/normal_5f94768fc0a8a.pdfIn PDF document text
- https://sagerogokijisoj.weebly.com/uploads/1/3/4/6/134601402/vobudubuwek.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/e90e4414-9bda-4bc5-bd1a-2d6cf213767e/58957682969.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1a4d66d8-52e9-444a-8096-bd5baf46ae6d/76024428927.pdfIn PDF document text
- https://s3.amazonaws.com/texifaxepag/3507048462.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/62a446b8-bea3-42c3-89b7-7118f0a73ef4/a_brief_history_of_thought.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/591a22ee-cb04-4d24-a22c-d1856ffc1536/donapesawivubixos.pdfIn PDF document text
- https://suvarofora.files.wordpress.com/2020/11/95519257918.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000093d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93D4 | 5576 bytes |
SHA-256: 638d47a3b1213e64eb3766935ab7814a5c126ca76e597075ad5e8314974f13cb |
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font_01_sfnt_off0000a694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA694 | 10560 bytes |
SHA-256: bfa08175ff62ad9c06e2469cb0eef6684498c93a1ff056f1d66dbd02c931eae4 |
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font_02_sfnt_off0000ca98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA98 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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