MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'plc s7 1200 manual pdf'. The ML classifier also strongly flagged this PDF as malicious. The presence of numerous external links suggests a link farm used for SEO poisoning or to distribute malware.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://cctraff.ru/strik?keyword=plc+s7+1200+manual+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4366027/normal_5f86f97fec65f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368237/normal_5f88da37cb3e4.pdfIn PDF document text
- https://bijifejutumaxob.weebly.com/uploads/1/3/1/3/131381781/2956675.pdfIn PDF document text
- https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/dbbd04.pdfIn PDF document text
- https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/nefofelutitaw_nesabemexubufo.pdfIn PDF document text
- https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/zudoxazimepulige.pdfIn PDF document text
- https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/7600545.pdfIn PDF document text
- https://site-1043809.mozfiles.com/files/1043809/buxolikemidij.pdfIn PDF document text
- https://site-1038771.mozfiles.com/files/1038771/molojukimarej.pdfIn PDF document text
- https://site-1043879.mozfiles.com/files/1043879/wivinifelop.pdfIn PDF document text
- https://site-1036711.mozfiles.com/files/1036711/ziweropafolodajegatikelad.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369328/normal_5f87ba85d9276.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365552/normal_5f8702c9ca0d8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366005/normal_5f86f4af36413.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366401/normal_5f872a6dded6d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365570/normal_5f8708d416b29.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366398/normal_5f88033101213.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369777/normal_5f880660f3af6.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/8d512565-153d-4ee0-a73b-4a23580e06bd/pizemusaxasebafaxeju.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ddc478e9-0864-4d22-bd8f-f662073e60b1/31023383409.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31af6c22-23a6-4232-9cd9-6b1a54b176b3/bogomuza.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f268d91a-de94-4521-8b6a-cfc5c09ad9d9/ketagijevizipukapajive.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009085.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9085 | 5612 bytes |
SHA-256: 1ad0cbe0e8b62dc6c8cba4ef37076da260cb9cb1f3badf1d92d76a39aa3c7b72 |
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font_01_sfnt_off0000a38c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA38C | 10532 bytes |
SHA-256: 0fc2669b21841c02a6fc739ea166ad017d2167c9bef8b65de030324b79cecd9a |
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