MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link redirects to a known malicious domain. This suggests a link farm or SEO poisoning tactic designed to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.
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=sentence+combining+worksheet+high+school+answers
- http://tesug.acanthusfloral.ca/uploads/1/3/0/7/130738970/6416319.pdf
- http://files.authoraprilkelley.com/uploads/1/3/2/6/132695491/negekuguruxetu_rajala.pdf
- http://files.glenoakscommunity.org/uploads/1/3/0/8/130815115/6586241.pdf
- http://files.justoneopportunity.org/uploads/1/3/0/8/130873902/6899363.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0465/1633/8838/files/adverbs_of_frequency_esl.pdf
- https://cdn.shopify.com/s/files/1/0431/6640/0673/files/kedidegubufanuzuli.pdf
- https://cdn.shopify.com/s/files/1/0436/2184/3106/files/ninovakogeropajomejobotan.pdf
- https://cdn.shopify.com/s/files/1/0428/7424/1183/files/lokusigunusidoza.pdf
- https://cdn.shopify.com/s/files/1/0428/1620/9059/files/operasi_pada_bilangan_real.pdf
- https://cdn.shopify.com/s/files/1/0437/5710/9399/files/23468074637.pdf
- https://cdn.shopify.com/s/files/1/0432/2341/6995/files/the_little_book_of_economics.pdf
- https://cdn.shopify.com/s/files/1/0433/7978/5886/files/gwent_playing_innkeeps.pdf
- https://cdn.shopify.com/s/files/1/0430/6521/3089/files/63183715083.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fejatomamegebuwugibuvu.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_off0000597a.bin80d75fc38308db8733a4ae9de47fdc0edcf20fc12f221fcbaf420d1c12a7cf9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x597A | 5612 bytes |
font_01_sfnt_off00006c74.bine2a4b14f332ac47b181ad57cfe6fd2ca7a0cc84d7d2c06e4fa4421c1e3e65149 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C74 | 10088 bytes |
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