MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a significant number of embedded links, with several pointing to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The presence of a link farm heuristic suggests a large-scale distribution effort. No scripts were extracted, but the primary attack vector appears to be the redirection of users to external, potentially malicious, sites.
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.me/wix?keyword=hourly+weather+report+chicago
- http://files.drvsmusicclasses.com/uploads/1/3/0/8/130874085/04f901f140ba.pdf
- http://files.apimagesart.com/uploads/1/3/1/8/131856318/3370b2314b.pdf
- http://fojuve.galactosemiaresource.com/uploads/1/3/0/8/130874493/kuwuga.pdf
- http://files.glenridgetkd.com/uploads/1/3/0/9/130969987/mezenazure.pdf
- http://gipemezi.wcsuticklab.com/uploads/1/3/1/0/131070450/gazuzavonanogip-putisowanowu-jatobawaji-jerukoz.pdf
- https://static.usrfiles.com/ugd/27135d_abe2c7b67da74df3a72b557becdcd235.pdf
- https://static.usrfiles.com/ugd/b54ff4_503fbe0fbf604a909d856ee2d3e4f8ae.pdf
- https://static.usrfiles.com/ugd/bc84a3_33de160b95954670a5252f0495ff5c4f.pdf
- https://cdn.shopify.com/s/files/1/0432/2836/4968/files/maplestory_link_skills_guide_2019.pdf
- https://cdn.shopify.com/s/files/1/0428/8787/2671/files/firebase_check_if_child_exists.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdf
- https://cdn.shopify.com/s/files/1/0434/0200/2597/files/2565879708.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_off00005475.bin25905b5fbfc1d253871026dbd643d3b4826267050a1c415145393ff508044324 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5475 | 5172 bytes |
font_01_sfnt_off00006621.bin05df24f6b2c876052d66a58d6859d8c2ea6e854409235883ddaa6052cce78654 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6621 | 15340 bytes |
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