MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded URLs that point to a known malicious redirector, disguised as a datasheet. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains references to the Yealink T19 datasheet and the malicious URL, suggesting a social engineering lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning to attract victims.
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=yealink+t19+datasheet
- http://jurawupa.columbinecaregivers.com/uploads/1/3/0/7/130775320/9893d817a.pdf
- https://cdn.shopify.com/s/files/1/0432/1234/1416/files/nelaragivojiso.pdf
- https://cdn.shopify.com/s/files/1/0433/8309/5452/files/lufizezonalasomexaxado.pdf
- https://cdn.shopify.com/s/files/1/0432/3858/8584/files/bhagavad_gita_chapter_9.pdf
- https://cdn.shopify.com/s/files/1/0432/7381/4182/files/nopezo.pdf
- https://cdn.shopify.com/s/files/1/0431/2442/4853/files/90494002132.pdf
- https://cdn.shopify.com/s/files/1/0434/6265/6152/files/60579588012.pdf
- https://cdn.shopify.com/s/files/1/0436/4953/2057/files/ang_abakada.pdf
- https://cdn.shopify.com/s/files/1/0430/2697/2825/files/hiperplasia_benigna_de_prostata_2018.pdf
- https://cdn.shopify.com/s/files/1/0439/5397/9550/files/togesedovujodixejiko.pdf
- https://cdn.shopify.com/s/files/1/0431/0145/4500/files/pazizijonasepokimafuje.pdf
- https://cdn.shopify.com/s/files/1/0435/4736/1439/files/past_tense_vs_present_tense.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_off000059d7.bin8d25a7f59b70083c1d57d674184ec39626eeb4e8b108794e43bd78b75bbf45e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59D7 | 5052 bytes |
font_01_sfnt_off00006b01.bin7bf09319e984258619177a1354eb09937d6760f246979a250bf03e7a942c7015 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B01 | 10456 bytes |
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