Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08aa5484175863f…

MALICIOUS

PDF

36.3 KB Authoring application: Serif PagePlus
MD5: cf9d1d5270840f6c93ef2a3e1b43d733 SHA-1: 32d0fbeed4db9948796b6d5b01076e5533011866 SHA-256: d08aa5484175863f041e563291e9bf8034cef9bbb006455f863d6e451f5e3bb2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution through these linked documents.

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://nancynjuguna.com/uploads/1/3/0/5/130545957/fuwovewuzexegis-kolusadiwupo-juvat-sopexakaw.pdf
    • http://millsdigital.com/uploads/1/3/0/2/130287454/zimizonabelolaworer.pdf
    • http://mybaremelanin.com/uploads/1/3/0/6/130620893/rolazabigamedu.pdf
    • http://onestepborders.com/uploads/1/3/0/6/130605161/1417226.pdf
    • http://strawhatgames.com/uploads/1/3/0/7/130740017/1660665.pdf
    • http://gigivangos.com/uploads/1/3/0/5/130588721/gimagum.pdf
    • http://soildsurfacewarehouse.com/uploads/1/3/0/3/130323301/37ec3975ef54e.pdf
    • http://colddiamnd.com/uploads/1/3/0/4/130476313/130476313.html#remedio+natural+para+eliminar+el+acido+urico

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001194.bin
469c80225e4c947af9c5019ef5beb33a8053857af36f16d768271c0e8699593a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1194 8984 bytes

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