MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
The PDF contains a mass of external links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is used in conjunction with the lure 'basic writing skills pdf download'. This indicates a phishing or scam attempt. The ML classifier strongly supports the malicious verdict. No scripts were extracted, limiting the analysis of direct payload execution.
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=basic+writing+skills+pdf+download
- http://xekuwo.claudiapisco.com/uploads/1/3/1/0/131070872/a4971f1.pdf
- http://files.highlanddrivepso.com/uploads/1/3/2/7/132740260/4124265.pdf
- http://files.travelwithkara.com/uploads/1/3/2/6/132681556/54977600fb865f.pdf
- https://cdn.shopify.com/s/files/1/0430/2631/7473/files/vukamigisafufij.pdf
- https://cdn.shopify.com/s/files/1/0431/6522/1015/files/kuketa.pdf
- https://cdn.shopify.com/s/files/1/0431/8697/8984/files/745169255.pdf
- https://cdn.shopify.com/s/files/1/0435/9448/1823/files/prozac_nation.pdf
- https://cdn.shopify.com/s/files/1/0436/0978/4482/files/93584756366.pdf
- https://cdn.shopify.com/s/files/1/0435/8068/6495/files/berapusifevekemuwaki.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16946396068.pdf
- https://cdn.shopify.com/s/files/1/0427/8845/4559/files/divib.pdf
- https://cdn.shopify.com/s/files/1/0432/7299/4979/files/31947254695.pdf
- https://cdn.shopify.com/s/files/1/0434/2503/8498/files/vizazurakobife.pdf
- https://cdn.shopify.com/s/files/1/0431/9982/4032/files/givumikekotezazexovuzala.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_off000061cc.binfb79051d2ed4bab270a953c60649be192c804d443c99ffe5da5251a339dbfcf6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61CC | 5528 bytes |
font_01_sfnt_off000074c5.bin76b084beb690e9c9707f37d013fe5056470d95e4a617b3ca1128c211306678bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74C5 | 16108 bytes |
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