MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.com'. The document body also contains a direct link to this malicious URL, disguised as a search result for 'mccance pathophysiology 7th edition pdf'. The PDF also exhibits characteristics of a link farm, with numerous embedded links to other PDFs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.
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.com/pify?keyword=mccance+pathophysiology+7th+edition+pdf
- http://files.clearhorizon.ca/uploads/1/3/0/8/130814056/1648542.pdf
- http://files.nadeemkhan.net/uploads/1/3/2/6/132695714/nazurira.pdf
- http://files.97silverspring.com/uploads/1/3/0/7/130740517/derikoruweje_maleziroxukurov.pdf
- http://files.grow-grace.com/uploads/1/3/1/3/131382134/8313646.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/8889/6415/files/2276959829.pdf
- https://cdn.shopify.com/s/files/1/0437/7467/3057/files/poraxedi.pdf
- https://cdn.shopify.com/s/files/1/0433/5170/3706/files/gerez.pdf
- https://cdn.shopify.com/s/files/1/0432/9963/5355/files/jelusogofobefugaxun.pdf
- https://cdn.shopify.com/s/files/1/0432/2754/5763/files/22478219909.pdf
- https://cdn.shopify.com/s/files/1/0432/9881/6150/files/55819374120.pdf
- https://cdn.shopify.com/s/files/1/0428/7656/7711/files/28857793810.pdf
- https://cdn.shopify.com/s/files/1/0435/5253/8787/files/xapuzimewomilumoxikul.pdf
- https://cdn.shopify.com/s/files/1/0430/0265/8979/files/ninovudogig.pdf
- https://cdn.shopify.com/s/files/1/0431/0990/8637/files/51100393165.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004452.binad8dbd052bb49ea8e3f448811ffafdb97af70ca3a2fccda196318a5976b489da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4452 | 5508 bytes |
font_01_sfnt_off00005731.bin15f6af48a2a2f0411502ab627cc80559effe7e0280e45e30780fe9949883ffe2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5731 | 9940 bytes |
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