Malicious PDF — malware analysis report

Static analysis result for SHA-256 706589041b616617…

MALICIOUS

PDF

40.6 KB Created: 2020-11-09 17:09:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: e36d7842f40a530f2deda4e8e92b229a SHA-1: c2d09ae66ab648a6527ccdbd3d82e1b43fce565a SHA-256: 706589041b616617d91b7a55c3819e39de3cba2c8827f4b88b2ba8e3129bbcd3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'car dent repair videos' and the malicious URL, suggesting a lure for phishing or a scam. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • Embedded URL info EMBEDDED_URL
    One 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://traffine.ru/wb?keyword=car%20dent%20repair%20videos In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369783/normal_5f8d51ae0a951.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443341/normal_5fa49da14191e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382639/normal_5f8db0fc9e707.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377928/normal_5fa0019e1d8a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415077/normal_5fa541cc1b2a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367617/normal_5f9d00fa30530.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367633/normal_5fa4ff2fdad58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373999/normal_5f88ef502b7b0.pdfIn PDF document text
    • https://wegotutitupal.weebly.com/uploads/1/3/1/4/131453182/laberures-zuzewekuselobe.pdfIn PDF document text
    • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/vojibiwemaza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f870acc69bc7.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/57aba67a-fe8f-4df1-a86a-b93dc5b7ecc4/60636080530.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7713d03-ec38-4911-82f8-dd60c71b43c6/sinipizixipegerol.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000849f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849F 4884 bytes
SHA-256: 824f05cd76909f8022d6324f9ba2c778c2ec32c2d9973eb1cbb69f2be9fdeb8b

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