MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to SEO-optimize malicious content, directing users to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=how+to+use+pdf+3d+viewer', which is flagged as a malicious redirector. The presence of numerous links to external PDFs, many hosted on seemingly benign platforms like Shopify but likely part of a larger distribution network, further supports the malicious intent. The ML classifier also strongly indicated maliciousness.
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=how+to+use+pdf+3d+viewer
- http://files.juliechibbaro.com/uploads/1/3/1/4/131452944/a3fd3e28201a.pdf
- http://files.standardtimewatchrepair.com/uploads/1/3/0/7/130775506/goxop-xunenopidi.pdf
- http://duxunep.idahoretrieverclub.org/uploads/1/3/1/6/131637316/579827.pdf
- https://cdn.shopify.com/s/files/1/0433/8558/5820/files/bioassay_procedure.pdf
- https://cdn.shopify.com/s/files/1/0430/7343/7847/files/bmw_branding_strategy.pdf
- https://cdn.shopify.com/s/files/1/0436/0539/3570/files/zinigajabazijujirenijo.pdf
- https://cdn.shopify.com/s/files/1/0433/1149/7366/files/23592225016.pdf
- https://cdn.shopify.com/s/files/1/0436/2030/3011/files/68863040581.pdf
- https://cdn.shopify.com/s/files/1/0430/3486/9921/files/96182758362.pdf
- https://cdn.shopify.com/s/files/1/0432/7351/9269/files/sagurepenetolewonojelutu.pdf
- https://cdn.shopify.com/s/files/1/0436/4589/4816/files/21295152816.pdf
- https://cdn.shopify.com/s/files/1/0431/1898/5370/files/evermotion_archinteriors_vol_43.pdf
- https://cdn.shopify.com/s/files/1/0430/9280/3744/files/arabic_language_free_download.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/26279171350.pdf
- https://cdn.shopify.com/s/files/1/0450/6664/9750/files/minecraft_crash_log.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_off00006486.bincdc11159e608c0c8f0abdead3811bbc5142f1ef92fd7cc687e01be306aeb32c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6486 | 5072 bytes |
font_01_sfnt_off000075f3.binacda953bc9cc72b1cad8e80ce66b5463d2150de0073e76353312095933d0c309 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75F3 | 10052 bytes |
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