MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=worksheets+colours+esl+students'. The document body also contains a link to 'https://cdn.shopify.com/s/files/1/0447/8690/9341/files/interview_questions_on_java_download.pdf', which is part of a link farm. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful content.
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.com/pify?keyword=worksheets+colours+esl+students
- http://files.rkspeech.com/uploads/1/3/1/4/131438249/9075954.pdf
- https://cdn.shopify.com/s/files/1/0447/8690/9341/files/interview_questions_on_java_download.pdf
- https://cdn.shopify.com/s/files/1/0434/6766/9654/files/73571024668.pdf
- https://cdn.shopify.com/s/files/1/0432/9072/2469/files/vocabulary_exercises_high_school.pdf
- https://cdn.shopify.com/s/files/1/0436/3314/8062/files/midepibaxasotizagobebalam.pdf
- https://cdn.shopify.com/s/files/1/0432/4265/1816/files/between_the_buried_and_me_tab_book.pdf
- https://cdn.shopify.com/s/files/1/0430/7252/0353/files/refizadego.pdf
- https://cdn.shopify.com/s/files/1/0436/8538/0246/files/malaysia_chinese_wedding_invitation_card_template.pdf
- https://cdn.shopify.com/s/files/1/0432/4347/1008/files/zofesodemob.pdf
- https://cdn.shopify.com/s/files/1/0432/3786/7687/files/chac_mool_libro.pdf
- https://cdn.shopify.com/s/files/1/0431/3668/0098/files/significado_de_adulacin.pdf
- https://cdn.shopify.com/s/files/1/0431/8717/5588/files/28130105084.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006588.bind04a30cc0a351666d7cf65e9ecfc5a3113cc49370f8b06e4bc693ef1402925f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6588 | 4728 bytes |
font_01_sfnt_off0000759f.bin24ed33bcf705959e1f6a8fbc62b2e5bb48e5e5d4a0eb777efa63582771380527 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x759F | 10060 bytes |
font_02_sfnt_off0000981d.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x981D | 4324 bytes |
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