Malicious PDF — malware analysis report

Static analysis result for SHA-256 6577aa519cdee886…

MALICIOUS

PDF

36.9 KB Authoring application: Solid Converter PDF
MD5: d3fdaad5ced8e150d0258bb9be7903fe SHA-1: d625b13fda6d233a123ed8da1c45a1421b77456d SHA-256: 6577aa519cdee886f0be934cc45b0b0f437713cff46aa5779610e09c7e947bef
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or SEO poisoning tactic, designed to drive traffic or distribute further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://bretagne-cmb.net/uploads/1/3/0/7/130775682/beruvoxo.pdf
    • http://freethought.com/uploads/1/3/0/2/130274166/8e1cfd.pdf
    • http://quantummethods.org/uploads/1/3/0/7/130739980/91e67640.pdf
    • http://njoylifecoaching.com/uploads/1/3/0/6/130620924/lajoluzibomijom_boxefep_famadud.pdf
    • http://bombaspeerless.com/uploads/1/3/0/5/130542758/3a3e334d48.pdf
    • http://fsq.me/uploads/1/3/0/6/130639676/puwalivan.pdf
    • http://myroyalorganics.com/uploads/1/3/0/2/130287367/dutiforavopujagugo.pdf
    • http://nataliemarie.org/uploads/1/3/0/2/130272092/pabedek_fages_fogivifo_kovefejuvejesar.pdf
    • http://venetianbayvillas.info/uploads/1/3/0/4/130476372/veduva-datuteborer-wowikikin.pdf
    • http://nolanthomascoffey.com/uploads/1/3/0/3/130379194/043a780b58c66.pdf
    • http://cortlandtwellness.com/uploads/1/3/0/3/130313524/4404429.pdf
    • http://jameswallach.net/uploads/1/3/0/8/130814594/nufolubibifebixujup.pdf
    • http://michaelhiggins.ie/uploads/1/3/0/4/130491063/130491063.html#maze+runner+4+movie+trailer

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003756.bin
8a55f0f6372ab2f8207bf8198c3f0d3930193d81d196dc86238f89c452ef59b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3756 8380 bytes

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