MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting a lure related to 'birthday card maker software free' and includes the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which are hosted on Shopify, likely to obscure the malicious redirector. 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.cc/pify?keyword=birthday+card+maker+software+free
- http://xalat.kateholland.com.au/uploads/1/3/1/6/131606339/c45c53d47f.pdf
- http://tafuz.margatedm.co.uk/uploads/1/3/1/8/131856380/nodafepibuxakoduz.pdf
- http://files.mumarch.net/uploads/1/3/0/7/130775126/vukizipovegilak_pazajejum_morutojege.pdf
- https://cdn.shopify.com/s/files/1/0431/2222/9397/files/pavutozarufojapoxatif.pdf
- https://cdn.shopify.com/s/files/1/0432/9072/2469/files/18005900447.pdf
- https://cdn.shopify.com/s/files/1/0432/2400/6823/files/70236616819.pdf
- https://cdn.shopify.com/s/files/1/0432/1532/3291/files/12117640953.pdf
- https://cdn.shopify.com/s/files/1/0439/8625/6030/files/67976915722.pdf
- https://cdn.shopify.com/s/files/1/0435/1180/8155/files/jilatoxejeko.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdf
- https://cdn.shopify.com/s/files/1/0431/6132/1621/files/census_form_2020.pdf
- https://cdn.shopify.com/s/files/1/0434/6531/0374/files/cea_reimbursement_form_2020_18.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_off0000663c.binf499b33b786afd0580907dd9bc0eeded334de8bfc10956dded0fcaf616ef002e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x663C | 5536 bytes |
font_01_sfnt_off00007903.bin8b8f62f87f3a920a01782dad9c21807f94c02bc1bd677b688101a8c9e8464181 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7903 | 10308 bytes |
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