Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a5a6c7a040a86e4…

MALICIOUS

PDF

42.5 KB Authoring application: ImageMagick
MD5: 9a4089a97ad71cc287d26c13ca48e0f5 SHA-1: d6e3172750a529558d6d7b85ad73b76fba270893 SHA-256: 0a5a6c7a040a86e4dd59d68d0306921436b24f99a3de1951986ea2c165c24869
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various compromised websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://www.totallandscapingcare.com/uploads/1/3/0/8/130874110/bujodizaxudixis.pdf
    • http://tripvector.org/uploads/1/3/0/6/130604885/8b528de4.pdf
    • http://ginositalianbakery.com/uploads/1/3/0/5/130589048/8149682.pdf
    • http://simplifycoaching.com/uploads/1/3/0/6/130604638/sujenujefaw.pdf
    • http://epiplas.com/uploads/1/3/0/5/130551116/0f606.pdf
    • http://www.perennialfilms.org/uploads/1/3/0/6/130639734/3fa72cc383.pdf
    • http://jedrietveld.com/uploads/1/3/0/4/130483447/7185301.pdf
    • http://www.southerngoatbreedersasscociation.org/uploads/1/3/0/5/130550657/demixexeruf.pdf
    • http://thedaystaracademy6.com/uploads/1/3/0/6/130620644/a31c784.pdf
    • http://nickysawesomewebsite.com/uploads/1/3/0/7/130776577/rirowokipedabedisul.pdf
    • http://spokanehomefuneral.com/uploads/1/3/0/3/130379625/jijulolusap_wovujudulikide.pdf
    • http://periscopedigital.com.au/uploads/1/3/0/5/130590482/83683af9.pdf
    • http://xinli88wangshangyule.br3h.com/uploads/1/3/0/6/130640231/130640231.html#contrato+de+confidencialidad+para+empleados+mexico+word

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e43.bin
4f617b5c0195802a4fdda318df3588a31074f013f9cc91aad4ab69076a4f8d9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E43 8700 bytes

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