MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file contains numerous links to external websites, many of which are hosted on disposable domains and point to redirector infrastructure. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. The presence of a link farm and a malicious redirector strongly suggests an attempt to lead the user to a malicious site for phishing or malware distribution.
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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://cctraff.ru/strik?keyword=suzuki+violin+book+volume+4+pdf In PDF document text
- https://site-1043829.mozfiles.com/files/1043829/40391515906.pdfIn PDF document text
- https://site-1042665.mozfiles.com/files/1042665/janejaf.pdfIn PDF document text
- https://site-1036702.mozfiles.com/files/1036702/xuwapimup.pdfIn PDF document text
- https://site-1040982.mozfiles.com/files/1040982/33613551545.pdfIn PDF document text
- https://site-1040442.mozfiles.com/files/1040442/78871328105.pdfIn PDF document text
- http://minokob.stringlibrary.com/uploads/1/3/2/7/132740718/beliw.pdfIn PDF document text
- http://files.bellaspeechsensoryworldinc.com/uploads/1/3/1/4/131409055/9315625.pdfIn PDF document text
- http://tibuluzes.sugarsweetdreams.com/uploads/1/3/1/4/131453870/8439667.pdfIn PDF document text
- http://malag.chinalakecamp.org/uploads/1/3/1/4/131438324/8d06de453328c3.pdfIn PDF document text
- http://files.nurturingnaturallyllc.com/uploads/1/3/1/3/131384255/9187329.pdfIn PDF document text
- http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006443.bin)
- http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006443.bin)
- http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00009aa1.bin)
- https://cdn.shopify.com/s/files/1/0436/1843/5229/files/lake_cypress_springs_camping.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0468/8750/1981/files/76450520228.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/5323/9457/files/sazoxopegoxu.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 extracted file (font_00_sfnt_off00006443.bin)
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006443.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6443 | 5012 bytes |
SHA-256: de2be36f064d1969b7e63fbeaa08b425398ac310f9d13f0d8475d1dbc1cae557 |
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font_01_sfnt_off0000753d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x753D | 10932 bytes |
SHA-256: 702b92644ec649b35fabf9fc2e9cd3a4d2401e0a960f50ffcf9a6de4fd952a06 |
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font_02_sfnt_off00009aa1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AA1 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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