MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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://trafffi.ru/aws?keyword=icu+delirium+guidelines+2018 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4403418/normal_5f989adf65015.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366664/normal_5f94cb2c73d53.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392463/normal_5f91a926d8b84.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367273/normal_5f91ff926e48f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406466/normal_5fa34d9878f46.pdfIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://rewuvitosil180903676.files.wordpress.com/2020/11/xegabaripupofirebinolizug.pdfIn PDF document text
- https://bixirofu.files.wordpress.com/2020/11/abs_and_chest_workout_at_home.pdfIn PDF document text
- https://fimalul.files.wordpress.com/2020/11/xenikefeg.pdfIn PDF document text
- https://wipijituwo.files.wordpress.com/2020/11/active_passive_voice_exercises_with_answers.pdfIn PDF document text
- https://pewivawo.files.wordpress.com/2020/11/rompiendo_cadenas_libro.pdfIn PDF document text
- https://bojugese.files.wordpress.com/2020/11/momumomutezafubavatit.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 |
|---|---|---|---|
stream_005_off0000922a.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x922A | 9944 bytes |
SHA-256: f11b99867fbcc58f901ac0cbe70630afb669615d6ce91560b816aac7f3ec4fbc |
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font_00_sfnt_off000058f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58F6 | 5504 bytes |
SHA-256: fa56ecbe1c632ff0711cbabc46066374ad6f812b0d6c02131cd0c9dfcd15f27b |
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font_01_sfnt_off00006b9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B9E | 11360 bytes |
SHA-256: 3cc60ca0fce0642a9f64bc8a3f812fe84d1d4123b53a6be01a2088010e174ac6 |
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