MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the ultimate destination. The document body, though heavily obfuscated, contains text related to academic materials, suggesting a lure to entice users to click the malicious links. The primary attack pattern involves redirecting users to potentially harmful websites.
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=technical+graphics+communication+4th+edition+pdf
- http://files.rosewoodprt.com/uploads/1/3/1/3/131398129/5021338.pdf
- http://files.bluesparrowcreations.com/uploads/1/3/0/9/130969791/fepuxetawevode-gizifika.pdf
- http://files.vicenzas-crostoli.com/uploads/1/3/1/4/131483253/9062675.pdf
- https://cdn.shopify.com/s/files/1/0437/5861/6733/files/65663632306.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73881495537.pdf
- https://cdn.shopify.com/s/files/1/0427/7387/2807/files/1522243406.pdf
- https://cdn.shopify.com/s/files/1/0433/8103/1061/files/68458842365.pdf
- https://cdn.shopify.com/s/files/1/0431/6086/2874/files/mutiboti.pdf
- https://cdn.shopify.com/s/files/1/0434/5554/5497/files/46836386337.pdf
- https://cdn.shopify.com/s/files/1/0431/6263/2360/files/jubusafodis.pdf
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/50499258105.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gigogew.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47475247643.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_off000040f7.bin442dae673815849457c56c4c29491fa56da0a1cd293cd89fc99ed860e306c3d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x40F7 | 5608 bytes |
font_01_sfnt_off000053de.bin2d9e5ae1b9c812b5172f63e3ef4c9ad915f06867bc6b4ec46142442c8a94580c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53DE | 9208 bytes |
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