MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text suggesting it is a PDF related to vocal training, which is likely a lure. The presence of multiple Shopify URLs, some benign and some unknown, suggests a link farm or distribution network. 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.com/pify?keyword=vocal+training+for+dummies+pdf
- http://files.andersonvocal.com/uploads/1/3/0/7/130775025/8056626.pdf
- http://files.littletonpreschool.com/uploads/1/3/0/7/130739826/boxafabenupe-vageziril-vofafunufob.pdf
- http://migibif.openhorizons.org/uploads/1/3/1/4/131454106/5019515.pdf
- https://cdn.shopify.com/s/files/1/0436/4759/8742/files/benigajupopumowolipex.pdf
- https://cdn.shopify.com/s/files/1/0434/0557/4309/files/gikipixuxaxudunazemiv.pdf
- https://cdn.shopify.com/s/files/1/0439/1557/5464/files/44509047535.pdf
- https://cdn.shopify.com/s/files/1/0428/3439/5295/files/39619889123.pdf
- https://cdn.shopify.com/s/files/1/0430/4555/2277/files/68958766178.pdf
- https://cdn.shopify.com/s/files/1/0431/9661/2768/files/fuduposimisovakarirevaves.pdf
- https://cdn.shopify.com/s/files/1/0432/4743/5940/files/79663717079.pdf
- https://cdn.shopify.com/s/files/1/0435/5820/7643/files/96657210640.pdf
- https://cdn.shopify.com/s/files/1/0432/4828/7912/files/99443325196.pdf
- https://cdn.shopify.com/s/files/1/0431/3025/7568/files/21061915066.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_off00007eff.bin54805fb12fad9540c820e31ecfcaecf414c3f45a462dd274d65f43c02fa68e6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EFF | 5440 bytes |
font_01_sfnt_off00009174.bin55e4876687f8e997b83a63aabfdf1f991445853273c02d0fecd16d38fcff2bd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9174 | 10112 bytes |
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