MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector, https://ttraff.ru/pify?keyword=absolute+cost+theory+pdf, indicating a malicious intent to redirect users to harmful content. The ML classifier also strongly flagged this PDF as malicious.
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=absolute+cost+theory+pdf
- http://files.sarahleevoice.com/uploads/1/3/0/7/130740524/b07889.pdf
- http://files.clearhorizon.ca/uploads/1/3/1/8/131856545/1746950.pdf
- http://files.intheam.shop/uploads/1/3/0/7/130740530/445673.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/5536/6822/files/vector_addition_examples.pdf
- https://cdn.shopify.com/s/files/1/0432/7433/8454/files/90562155005.pdf
- https://cdn.shopify.com/s/files/1/0432/9422/8630/files/taxoditemugeseluweroge.pdf
- https://cdn.shopify.com/s/files/1/0432/7066/8453/files/75309923028.pdf
- https://cdn.shopify.com/s/files/1/0435/0840/0280/files/15110450280.pdf
- https://cdn.shopify.com/s/files/1/0432/1860/0104/files/area_calculation_formula_for_irregular_shapes.pdf
- https://cdn.shopify.com/s/files/1/0431/1184/1958/files/44032509272.pdf
- https://cdn.shopify.com/s/files/1/0427/7246/3772/files/lipunalebutiduluxagifi.pdf
- https://cdn.shopify.com/s/files/1/0437/0884/2152/files/mikajelarawivit.pdf
- https://cdn.shopify.com/s/files/1/0433/2965/0856/files/medokogasozurikomukizef.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_off00005fce.bine20e9dcb4f5e9030465c0121d2c594c4674cfc0ad24a1dbde3d9be8886de0707 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FCE | 5264 bytes |
font_01_sfnt_off000071ae.bin952c7d91c652a939b11fbb2a2771ff7b5523dd5675ea73d5a5ae8fc75e2dde6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71AE | 10112 bytes |
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