MALICIOUS
224
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, characteristic of a link farm, designed to redirect users to various external sites. One of the primary links, 'https://ttraff.ru/pify?keyword=ceh+v9+certified+ethical+hacker+version+9+study+guide+pdf', points to known malicious redirector infrastructure. The document body, while containing garbled text, includes references to a 'CEH v9 certified ethical hacker' study guide, suggesting a lure to entice users to click on the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://ttraff.ru/pify?keyword=ceh+v9+certified+ethical+hacker+version+9+study+guide+pdf In PDF document text
- http://files.theartoftheheart-chester.com/uploads/1/3/2/6/132681951/fuginaluge_waluzi.pdfIn PDF document text
- http://files.tiffanyharrisonhome.com/uploads/1/3/1/3/131383977/8603988.pdfIn PDF document text
- http://files.stcatherineschurchlittlehampton.org/uploads/1/3/2/8/132815004/bodexaka-murawe.pdfIn PDF document text
- http://files.realestatepract.com/uploads/1/3/0/8/130873876/dekaju_gimutilatu_buxevu.pdfIn PDF document text
- http://files.triplejackproductions.com/uploads/1/3/0/9/130969600/70a9b67.pdfIn PDF document text
- http://files.rockport-pewter.com/uploads/1/3/2/3/132303020/popax.pdfIn PDF document text
- http://files.sillassenhalf.com/uploads/1/3/0/9/130969555/bevijidu.pdfIn PDF document text
- http://files.jenmanteigas.com/uploads/1/3/0/8/130874544/mafamirawusino.pdfIn PDF document text
- http://files.suncoastsoul.com/uploads/1/3/1/3/131379612/baretanemomimu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://vupejesos.files.wordpress.com/2020/06/29367164682.pdfIn PDF document text
- https://togikozif.files.wordpress.com/2020/07/95325937868.pdfIn PDF document text
- https://xuxosasi.files.wordpress.com/2020/06/kexodidupumumabajasexet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ninitegabi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46287179129.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.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_off000045d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x45D3 | 5704 bytes |
SHA-256: fc5cb4a58736429e4e8898f258028bba1ae5c6aa647141da203213fa61c8f0ce |
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font_01_sfnt_off00005942.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5942 | 8968 bytes |
SHA-256: 5dfee443b9a2b7cc50cdea53b4b22855699731d968b303b6a28f7cbf0418d033 |
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