MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, including one pointing to a known malicious redirector. The document body and embedded links suggest a lure related to calendars, likely intended to trick users into clicking through to malicious sites. The ML classifier strongly indicated maliciousness, and the PDF structure itself contains a mass of external links, indicative of SEO poisoning or link farming for malicious purposes.
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://gettraff.ru/123?keyword=calendar+for+2019+2020+2021
- https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/wubimevipuwepi-podop.pdf
- https://cdn-cms.f-static.net/uploads/4385869/normal_5f9caabb77b3c.pdf
- https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/rukazo.pdf
- https://cdn-cms.f-static.net/uploads/4370294/normal_5f8a9333d6c72.pdf
- https://dikanutedageke.weebly.com/uploads/1/3/4/4/134457663/7348064.pdf
- https://cdn-cms.f-static.net/uploads/4393361/normal_5f91b94c2a972.pdf
- https://cdn-cms.f-static.net/uploads/4370791/normal_5f8a183db7ffc.pdf
- https://cdn-cms.f-static.net/uploads/4393632/normal_5f9a69a449234.pdf
- https://fukikabigo.weebly.com/uploads/1/3/4/4/134457586/8481807.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0483/1864/4379/files/kuwawotabetazenat.pdf
- https://cdn.shopify.com/s/files/1/0498/9403/1516/files/sesisubodowal.pdf
- https://s3.amazonaws.com/piradi/lakuwibilabekikexuk.pdf
- https://cdn.shopify.com/s/files/1/0502/0866/9872/files/8574502775.pdf
- https://cdn.shopify.com/s/files/1/0481/2796/7395/files/wupezakotute.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061ce.binfc96aa20caf2fb5cc3643e259f6cbf00e512f93a7f9eb811c8779af42eb5a340 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61CE | 5112 bytes |
font_01_sfnt_off0000733e.bind11ae76bb2f8b8b50abc0834c096b670ad0905f4fe163ceba3040875cecbeb66 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x733E | 10200 bytes |
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