MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external links, identified as a 'PDF link farm', suggesting a malicious intent to manipulate search engine results or redirect users to potentially harmful content. The ML classifier also flagged this PDF as malicious with high confidence. The primary IOC is the URL https://trafftec.ru/aws?keyword=cc2+chapter+6+answers, which is directly embedded and likely serves as a gateway to further malicious activity.
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://trafftec.ru/aws?keyword=cc2+chapter+6+answers PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/90c379bd-b513-4291-8666-8197887cabed/jowuti.pdfIn PDF document text
- https://vivuvegutofo.files.wordpress.com/2020/11/star_spangled_banner_trumpet.pdfIn PDF document text
- https://saridejawe.files.wordpress.com/2020/11/dunajaw.pdfIn PDF document text
- https://xuxawota.files.wordpress.com/2020/11/20122779673.pdfIn PDF document text
- https://s3.amazonaws.com/wovitiku/1914_luciano_canfora.pdfIn PDF document text
- https://s3.amazonaws.com/bugutaj/american_english_file_5_second_edition_teacher_s_book_download.pdfIn PDF document text
- https://lavawuxalefi.files.wordpress.com/2020/11/65881384923.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b3e08736-ee08-4e3a-a502-051b7aedaf4c/juzurupapitokaf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c715056a-ddf8-42b4-af73-5290b64a4d98/verotidofukireg.pdfIn PDF document text
- https://s3.amazonaws.com/tonemakopinibem/vekobidapidizamopexuz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/48953108-e095-4097-bd4b-256759496859/famibemoposelologizipem.pdfIn PDF document text
- https://wipijituwo.files.wordpress.com/2020/11/87478079559.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006347.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6347 | 5272 bytes |
SHA-256: 854d1cd03c0ae12f6237774b81e2850608daf8d7e4e2f131654a0d59e1e0a1a1 |
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font_01_sfnt_off0000753f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x753F | 11612 bytes |
SHA-256: b02c9896dada195a48f7388a5322d46644df7b56337e3a8404b88712d4ea523e |
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