MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF document contains a mass of external links, many pointing to Shopify domains hosting other PDFs, but also includes a critical link to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Routines adverbs of frequency worksheets' and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.
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=routines+adverbs+of+frequency+worksheets
- http://rusedaboz.frackfreefoothills.net/uploads/1/3/2/6/132682137/ef051fe87e.pdf
- https://cdn.shopify.com/s/files/1/0432/6552/3870/files/biomassa_livro.pdf
- https://cdn.shopify.com/s/files/1/0438/0455/7472/files/allahabad_bank_internet_banking_form.pdf
- https://cdn.shopify.com/s/files/1/0433/9299/1399/files/40868271598.pdf
- https://cdn.shopify.com/s/files/1/0428/2561/3475/files/1208783084.pdf
- https://cdn.shopify.com/s/files/1/0444/2098/9095/files/fitojazejapafute.pdf
- https://cdn.shopify.com/s/files/1/0432/2125/4312/files/sawiwekemiga.pdf
- https://cdn.shopify.com/s/files/1/0431/7931/1253/files/32685023584.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jokopewizemaw.pdf
- https://cdn.shopify.com/s/files/1/0431/9186/1412/files/93947086568.pdf
- https://cdn.shopify.com/s/files/1/0436/0473/8206/files/66280866026.pdf
- https://cdn.shopify.com/s/files/1/0430/9961/9492/files/54810668887.pdf
- https://cdn.shopify.com/s/files/1/0430/6396/7906/files/tositemokitevik.pdf
- https://cdn.shopify.com/s/files/1/0433/5868/3294/files/85753176320.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_off0000537b.bina83a6ddd05e1609d82d2b56e7541cda791387e0b97616d6cf5afd47963349d11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x537B | 5668 bytes |
font_01_sfnt_off000066e6.bin716f2976e0c9763598bbffc39066b9dcc9ca7bce6b77a8af1beee1df40e120c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66E6 | 10184 bytes |
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