MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=animated+discord+emojis', suggesting a lure to a malicious site. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.
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=animated+discord+emojis
- http://files.redriverthunder.com/uploads/1/3/1/8/131858916/fba149.pdf
- http://files.crappyclassics.com/uploads/1/3/1/3/131379246/6be65cb8802929.pdf
- http://files.rochonsandshall.com/uploads/1/3/0/9/130969680/vavegupuwo.pdf
- http://files.samgolong.com/uploads/1/3/1/8/131856330/busenupe.pdf
- https://cdn.shopify.com/s/files/1/0433/3050/2806/files/31545968832.pdf
- https://cdn.shopify.com/s/files/1/0433/7703/3372/files/toxap.pdf
- https://cdn.shopify.com/s/files/1/0434/0816/2974/files/52360193546.pdf
- https://cdn.shopify.com/s/files/1/0439/7717/9294/files/puratutaxusumogaz.pdf
- https://cdn.shopify.com/s/files/1/0431/8461/9681/files/zulizaxesemubipegoben.pdf
- https://cdn.shopify.com/s/files/1/0433/6258/2693/files/nokeku.pdf
- https://cdn.shopify.com/s/files/1/0432/8154/7417/files/ponenilevenewo.pdf
- https://cdn.shopify.com/s/files/1/0428/9154/2681/files/24407816631.pdf
- https://cdn.shopify.com/s/files/1/0430/5489/1161/files/servsafe_manager_study_guide_2017.pdf
- https://cdn.shopify.com/s/files/1/0430/1013/0073/files/tuveromibitu.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_off00005a21.bin50a2f6badde6975a2affcf4ac70211d1b2250a6f8f13b15b86c1e2a0b245e2f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A21 | 5116 bytes |
font_01_sfnt_off00006b74.bina090ab55424ef26e319ba383272a7852cc9964d1255a70c3a12d2164ae915a99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B74 | 10120 bytes |
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