MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a primary malicious redirector URL pointing to 'https://ttraff.com/pify?keyword=meyerhof+bearing+capacity+equation+pdf'. This suggests the document is designed to lead users to potentially harmful content under the guise of a technical document. The ML classifier strongly supports the malicious nature of this PDF.
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=meyerhof+bearing+capacity+equation+pdf
- http://files.daedalusinnovation.com/uploads/1/3/1/0/131070476/fivipa.pdf
- http://files.koreanamericanhealthconference.com/uploads/1/3/0/7/130738693/mefizavizez-rozerabexuvoriv-zifuzeva-soniv.pdf
- http://files.dianalara-somatics.com/uploads/1/3/1/4/131438150/sinuboxusulogigutese.pdf
- http://files.christinacasillo.com/uploads/1/3/0/7/130775308/1001088.pdf
- http://files.jameskeetonart.com/uploads/1/3/0/7/130775977/1271575.pdf
- https://cdn.shopify.com/s/files/1/0428/8223/6583/files/78806258204.pdf
- https://cdn.shopify.com/s/files/1/0445/5625/5396/files/the_sneetches.pdf
- https://cdn.shopify.com/s/files/1/0431/1079/3382/files/7532560157.pdf
- https://cdn.shopify.com/s/files/1/0440/8590/3525/files/eq2_slash_commands.pdf
- https://cdn.shopify.com/s/files/1/0433/7880/2846/files/78559880573.pdf
- https://cdn.shopify.com/s/files/1/0431/7003/7917/files/7895791712.pdf
- https://cdn.shopify.com/s/files/1/0430/7081/6407/files/82253717324.pdf
- https://cdn.shopify.com/s/files/1/0432/7954/8580/files/totosaz.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31995481059.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_off00009fa6.bin344b84520b6c5122b497a4866bc887507c7cc1d60cc4e6ac26e16ac961dbbdeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9FA6 | 5580 bytes |
font_01_sfnt_off0000b2a1.bin19ac2d1b8e999563de98f656d9a0cd925519a7b5080f7d50305ed4b3ce180311 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2A1 | 16004 bytes |
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