MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier as malicious and contains a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body is heavily obfuscated and appears to contain the malicious URL, suggesting a lure to external content.
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=hormonio+antidiuretico+adh+pdf
- http://files.allarounddecking.com/uploads/1/3/2/6/132681560/0c3cb4.pdf
- http://files.tyannzealdesigns.com/uploads/1/3/0/8/130815009/puruvix.pdf
- http://files.sayrevillesquad.org/uploads/1/3/1/1/131164273/fogamolopefex.pdf
- http://files.david-arnebeck.com/uploads/1/3/1/4/131437295/62dd8be76e4f.pdf
- http://files.nancymaccreery.com/uploads/1/3/0/7/130740589/fb76d9.pdf
- https://cdn.shopify.com/s/files/1/0437/3364/7525/files/74181847859.pdf
- https://cdn.shopify.com/s/files/1/0431/1570/8580/files/fejumowojoxosunijaruriwu.pdf
- https://cdn.shopify.com/s/files/1/0428/8957/6601/files/17992356533.pdf
- https://cdn.shopify.com/s/files/1/0427/9664/6556/files/3183343314.pdf
- https://cdn.shopify.com/s/files/1/0431/6574/5309/files/19035783881.pdf
- https://cdn.shopify.com/s/files/1/0433/3531/9702/files/kepewozukoxolezuxi.pdf
- https://cdn.shopify.com/s/files/1/0434/1914/0252/files/curso_arquitectura_de_computadoras.pdf
- https://cdn.shopify.com/s/files/1/0431/7426/4993/files/putuwusur.pdf
- https://cdn.shopify.com/s/files/1/0437/1673/9222/files/50521253474.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_off0000826f.bin34fd743afdd4cfa1f23b3be4a813a9abc41b51b91cc02ea1bfe78ab4660150d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x826F | 5148 bytes |
font_01_sfnt_off000093c5.bine2626d0f2da6eb7add38aeea530c83f9d507d0d063c637af77d94cd4674be069 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93C5 | 10408 bytes |
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