Malicious PDF — malware analysis report

Static analysis result for SHA-256 3124a2291aa4ac75…

MALICIOUS

PDF

55.8 KB Authoring application: Adobe PDF Library 9.0
MD5: b5af620581914786a68400293ef7b92f SHA-1: 44a8c52ae266f43249c5619e6e18de1ebc0f7cb0 SHA-256: 3124a2291aa4ac75c134ce608bd3577804bacbbafc852061ee1bdc957bfab5f7
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further indicates a phishing or malicious download attempt. The document body, though heavily obfuscated, contains some of the URLs, suggesting they are presented to the user as part of a lure. The overall pattern suggests a phishing campaign aiming to redirect users to malicious content.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://southpawstraining.com/uploads/1/3/0/3/130379227/1dcfcee.pdf
    • http://stdesignmatters.com/uploads/1/3/0/5/130588681/laxefelagexozo.pdf
    • http://finding-love.online/uploads/2020/01/29/tiwepufo-mogabetijiburu-sumimizawun-xasugupax.pdf
    • http://nutrition-doctor.co.uk/uploads/1/3/0/4/130435781/movadodukabo-fuvukowawar-vuxafizafa-sagutozazelo.pdf
    • http://riversidecountyhistory.org/uploads/1/3/0/5/130545597/130545597.html#sony+a7r+2+reviews

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001129.bin
638ee4d869747ecb7d534093d322b5355b29767285e142ea61bde030ef5d823e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1129 8756 bytes

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