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, specifically pointing to 'https://ttraff.cc/pify?keyword=febrile+seizure+aap+guidelines'. This URL is embedded within the document body, suggesting a social engineering lure related to medical guidelines. The PDF also exhibits characteristics of a link farm, with numerous links to external PDFs, many hosted on Shopify. The ML classifier 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=febrile+seizure+aap+guidelines
- http://files.janislynnecards.com/uploads/1/3/1/4/131483053/3097072.pdf
- http://files.terredetuni.com/uploads/1/3/1/4/131453843/1441379.pdf
- http://files.exploringteacher.com/uploads/1/3/2/6/132682655/5bcc1.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tefabojukiva.pdf
- https://cdn.shopify.com/s/files/1/0436/2154/8194/files/lukosuwaronone.pdf
- https://cdn.shopify.com/s/files/1/0432/2505/5387/files/70415663762.pdf
- https://cdn.shopify.com/s/files/1/0430/7910/6724/files/21051212137.pdf
- https://cdn.shopify.com/s/files/1/0429/0225/7823/files/26786777219.pdf
- https://cdn.shopify.com/s/files/1/0434/9375/2997/files/gupuxuledubofa.pdf
- https://cdn.shopify.com/s/files/1/0432/7243/7910/files/12515621608.pdf
- https://cdn.shopify.com/s/files/1/0436/6431/0425/files/durirosofapudenusajuval.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/texigusowemojegovivek.pdf
- https://cdn.shopify.com/s/files/1/0434/1402/8450/files/socialdemokraterna_partiprogram_2020.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/
- https://cdn.shopify.com/s/files/1/0432/7243/7910
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000729a.bin6a0b02513e08532e24389ded30717bdb2c3c3073be5d6de3f8b0efe57e496c2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x729A | 5272 bytes |
font_01_sfnt_off00008490.bin638b8240777166019e403900856f70870b60a6408fa6cf3e60a677b5ddf8b924 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8490 | 10668 bytes |
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