MALICIOUS
152
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 a critical heuristic firing indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. The presence of numerous links, many hosted on Shopify, suggests a link farm or a method to distribute malicious content indirectly. The ML classifier also strongly flagged this PDF as malicious.
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.ru/pify?keyword=complete+ielts+bands+6.+5+7.+5+workbook+with+answers+pdf+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C
- http://files.artsanimalsandawakenings.com/uploads/1/3/1/3/131398541/4102317.pdf
- http://files.bcaprastudioarts.com/uploads/1/3/1/4/131453432/xunuk.pdf
- http://files.celestialstarsdance.com/uploads/1/3/0/8/130814132/jikulon.pdf
- http://files.humactive-formation.com/uploads/1/3/1/4/131453219/2fc36293960dea2.pdf
- https://cdn.shopify.com/s/files/1/0428/8276/0870/files/4590201524.pdf
- https://cdn.shopify.com/s/files/1/0433/4724/7263/files/kejokusut.pdf
- https://cdn.shopify.com/s/files/1/0429/6730/2295/files/vakunija.pdf
- https://cdn.shopify.com/s/files/1/0428/5205/7244/files/minecraft_unbreaking_enchantment.pdf
- https://cdn.shopify.com/s/files/1/0434/0331/3315/files/aieee_2020_question_paper_with_solution_download_vidyalankar.pdf
- https://cdn.shopify.com/s/files/1/0444/8839/2871/files/what_is_origin_in_git.pdf
- https://cdn.shopify.com/s/files/1/0431/3523/8301/files/46961495223.pdf
- https://cdn.shopify.com/s/files/1/0432/0237/9939/files/vapuruwexi.pdf
- https://cdn.shopify.com/s/files/1/0432/9363/8811/files/luvuzasuxevivudegisojero.pdf
- https://cdn.shopify.com/s/files/1/0436/9140/9558/files/78633499384.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_off00005b0b.bin814d4682a3261f1b0297568c03b7466b36d788c6ef527cc26fd7e83088317b17 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B0B | 6500 bytes |
font_01_sfnt_off0000708c.bin15e8182c5578183c2096472c2c8d9997a6a0acf13fcf72c9933a86fc93f1141a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x708C | 10224 bytes |
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