MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, a technique often used for SEO poisoning or link farming. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The ML classifier strongly supports the malicious nature of this PDF.
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.cc/pify?keyword=htn+guidelines+2018+aafp
- http://files.digitalworkshop.com.hk/uploads/1/3/1/4/131408103/9e63e.pdf
- http://vutoxe.mosaicchurch.org.uk/uploads/1/3/0/8/130874457/771802.pdf
- http://files.navslaborers.org/uploads/1/3/0/8/130874012/tegasinixak-vibim.pdf
- https://cdn.shopify.com/s/files/1/0433/1172/6750/files/sazexopab.pdf
- https://cdn.shopify.com/s/files/1/0433/3699/0885/files/nutizu.pdf
- https://cdn.shopify.com/s/files/1/0430/2661/2378/files/14581397191.pdf
- https://cdn.shopify.com/s/files/1/0435/8697/7949/files/class_6_ict_book.pdf
- https://cdn.shopify.com/s/files/1/0431/6535/2093/files/10329190183.pdf
- https://cdn.shopify.com/s/files/1/0430/6888/3106/files/xizena.pdf
- https://cdn.shopify.com/s/files/1/0437/7378/8321/files/23544739888.pdf
- https://cdn.shopify.com/s/files/1/0450/5577/0776/files/bohemian_rhapsody_fingerstyle_guitar.pdf
- https://cdn.shopify.com/s/files/1/0431/3972/7509/files/us_constitution_amendments_summary.pdf
- https://cdn.shopify.com/s/files/1/0429/8221/1733/files/moxasapilazugogusexajena.pdf
- https://cdn.shopify.com/s/files/1/0430/4715/7911/files/robert_bringhurst_elements_of_typographic_style.pdf
- https://cdn.shopify.com/s/files/1/0432/8488/9758/files/fopune.pdf
- https://cdn.shopify.com/s/files/1/0430/6727/7469/files/lexokaxenimazanu.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_off00010acf.bin57aeb45d6aad4e15e26f9979da2e240640f44f09bc9ae5a42d9d1203b41e3d24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ACF | 5592 bytes |
font_01_sfnt_off00011dec.bin8a2ec4cb252532e6bb1881fd5dc4f1ecd769587698d68ef0e407e8e4221a328a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DEC | 13148 bytes |
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