MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is a PDF containing numerous embedded links, with a critical heuristic identifying it as a malicious redirector. One of the primary links directs to 'traffmen.ru', a known malicious domain. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of many links indicates a link farm or phishing attempt. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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) 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://traffmen.ru/strik?utm_term=capitol+theater+port+chester+concert+schedule In PDF document text
- https://cdn-cms.f-static.net/uploads/4384483/normal_5f9f6ae3d1862.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374024/normal_5fa6380e26822.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383568/normal_5f9440f7a494c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414352/normal_5f9bf31d84efc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404523/normal_5f9a202907799.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387036/normal_5f9536934baa9.pdfIn PDF document text
- https://sunerewej.weebly.com/uploads/1/3/4/7/134724547/195915.pdfIn PDF document text
- https://rigivopamakor.weebly.com/uploads/1/3/4/8/134869382/vodopato-kujol.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383471/normal_5fb5b854b62ee.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/c3b78427-87b8-4a1e-be3d-03932f58e5e6/82887957041.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/da90ca16-80ac-4527-b9f8-b7befc4112a4/biblia_de_estudio_macarthur_online.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c98ef698-41f9-4847-a0b2-cda9cbe108fb/fake_taxi_honesty.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a6a82989-ce8e-4725-b297-2cad4a4dd615/bulezaxexofa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e462d211-24b1-4b3e-b4e1-1dae1683af3a/modern_programming_languages_a_practical_introduction_2nd_edition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e41d76d3-554e-464a-9fa9-0e976e5c102c/13344436389.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/faedde3c-d71f-4795-a76c-23f349f33bc8/vudilitajumenexurekof.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 PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c860.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC860 | 5064 bytes |
SHA-256: a7ccd778c0cc6a9899816769e0bd417c8b1cb4641f33f509ca0f43ecc62b55d2 |
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font_01_sfnt_off0000d985.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD985 | 10816 bytes |
SHA-256: ffbf6b397d3ac6cbb9d5f2097d597f331390bd1ceaa464117de041773d05083e |
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