Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabe2d49a1fe03e9…

MALICIOUS

PDF

46.7 KB Authoring application: Pdftk
MD5: da39f22e6a0a80196a3efa268a1f340b SHA-1: b3aa36b983a9482aee0aaa3fbb825a45e4095522 SHA-256: eabe2d49a1fe03e972ce59fc77a8349a8ea45fde9e90975f90377c38afc922a4
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical finding for a 'PDF_SEO_LINK_FARM' which indicates a large number of external links. The ML classifier also strongly indicated maliciousness. The document body contains numerous URLs pointing to PDF files hosted on various domains, suggesting a link farm or redirection mechanism. The primary intent appears to be directing users to these external resources, likely for SEO manipulation or to serve further malicious content.

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://agapanthus-plants.com/uploads/1/3/0/5/130551065/8875502.pdf
    • http://pacopioneervalley.org/uploads/1/3/0/2/130272516/352349e5e90.pdf
    • https://lotezarajiworo.weebly.com/uploads/1/3/0/6/130604406/070b97eceb4c60.pdf
    • http://matooki.com/uploads/1/3/0/4/130483343/xejaja.pdf
    • http://bexbot.com/uploads/1/3/0/6/130604045/vewovikelojafugujopa.pdf
    • http://northstarmedics.com/uploads/1/3/0/3/130312991/6189797.pdf
    • http://shoebrewnation.com/uploads/1/3/0/4/130478481/bexemetedasugino.pdf
    • http://northernrailleaders.com/uploads/1/3/0/6/130620828/130620828.html#ariston+lux+water+heater+manual

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011c6.bin
123e7f736bfb9a68e848270ab4ac60212fa86d6e4e5ab6464d428dd185df57dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C6 9932 bytes
font_01_sfnt_off00006c50.bin
fd5f80c928a41697f05a8a9d996a29eb187ea710f31dd7faa306f8bad5585866		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C50 11444 bytes

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