MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `ttraff.cc`. This URL is used in conjunction with a lure related to 'atomic structure and quantum chemistry pdf'. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify domains. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector attack pattern.
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=atomic+structure+and+quantum+chemistry+pdf
- http://files.spotlightct.org/uploads/1/3/2/6/132681992/9896649.pdf
- http://dibezeruw.xy-yang.com/uploads/1/3/0/7/130775997/soxotelubo_burep.pdf
- http://files.angelskornerdaycare.com/uploads/1/3/2/7/132711999/pilarekevarisame.pdf
- https://cdn.shopify.com/s/files/1/0431/6227/1898/files/sokejemiwuvawafino.pdf
- https://cdn.shopify.com/s/files/1/0431/2023/0564/files/repuvonabuje.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sazofafusogowo.pdf
- https://cdn.shopify.com/s/files/1/0432/6208/3232/files/76338681827.pdf
- https://cdn.shopify.com/s/files/1/0437/0428/7383/files/duviduzipoko.pdf
- https://cdn.shopify.com/s/files/1/0433/7005/3784/files/sivowepuk.pdf
- https://cdn.shopify.com/s/files/1/0428/1267/0111/files/43123673360.pdf
- https://cdn.shopify.com/s/files/1/0431/5391/6065/files/fefaratozenusemawuf.pdf
- https://cdn.shopify.com/s/files/1/0434/0360/8214/files/7074928837.pdf
- https://cdn.shopify.com/s/files/1/0435/3343/5029/files/83075524477.pdf
- https://cdn.shopify.com/s/files/1/0432/5448/1058/files/the_fifth_wave_free_download.pdf
- https://cdn.shopify.com/s/files/1/0429/8443/9971/files/zewenakapilewex.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_off00015b7f.bin5f1d82ca098258f18782d1c953598ed4cdc4ed42c34670d30374aabb0bf1e6d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B7F | 5580 bytes |
font_01_sfnt_off00016e53.bin5094d86bf2cf42a2a12d448e7ed22f8efeb50194731ca5ae3b56d290e25c14c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16E53 | 10180 bytes |
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