MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.ru/pify?keyword=worksheet+on+simple+subject+and+simple+predicate, is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. This suggests the document's primary purpose is to lure users to malicious sites.
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=worksheet+on+simple+subject+and+simple+predicate
- http://files.selcssociety.com/uploads/1/3/1/8/131871785/66912.pdf
- https://cdn.shopify.com/s/files/1/0431/4667/4336/files/chinese_ttf_font.pdf
- https://cdn.shopify.com/s/files/1/0430/7193/0529/files/gajuxuxovefonodefik.pdf
- https://cdn.shopify.com/s/files/1/0433/2158/9913/files/67374334130.pdf
- https://cdn.shopify.com/s/files/1/0429/2873/4367/files/bsm_leveling_guide.pdf
- https://cdn.shopify.com/s/files/1/0427/8353/9366/files/zebepa.pdf
- https://cdn.shopify.com/s/files/1/0439/3353/2315/files/9892347161.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sogogetuxupoxex.pdf
- https://cdn.shopify.com/s/files/1/0433/3702/3641/files/nisuginodazisobef.pdf
- https://cdn.shopify.com/s/files/1/0439/2937/0779/files/nisat.pdf
- https://cdn.shopify.com/s/files/1/0431/2052/5469/files/mededabavekazelativarax.pdf
- https://cdn.shopify.com/s/files/1/0434/0629/5201/files/80364452484.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005046.bin3f5e6295ef6b0ffbdb7a571829e6f6c154c3b5c4a4e912ae214c278e66704d37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5046 | 5608 bytes |
font_01_sfnt_off00006334.bin503c9ddad214d249d43e3d4acfb8e5b000bf3caaf8322ad73efcb87a62c73fa9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6334 | 10332 bytes |
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