Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fd6f8c89d7d01e5…

MALICIOUS

PDF

38.7 KB Authoring application: PDFedit
MD5: 1e89b0278af6a7713b2ab7bec053e48b SHA-1: 691807dfa93531f6a49c6ec4eab64562f185e654 SHA-256: 7fd6f8c89d7d01e53ab5226a8d5ec2591b6f18243cf560e8cadb995f5121dc3e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were directly extracted, the embedded URLs are the primary indicators of compromise, suggesting a phishing or content distribution scheme.

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://mycentralparkwest.com/uploads/1/3/0/6/130604658/bilozobubajaraka.pdf
    • http://ronsokolbooks.com/uploads/1/3/0/6/130620898/ae58bce.pdf
    • http://dedicatedladiesconcrete.com/uploads/1/3/0/5/130590462/3354873.pdf
    • http://testoimesto.ru/uploads/2020/01/28/pumoxelisamese.pdf
    • http://mylifewater.nl/uploads/1/3/0/5/130551050/xiwajatigojawexo.pdf
    • http://livinglegendary.org/uploads/1/3/0/5/130589165/7246316.pdf
    • http://mrmacbiblebook2.com/uploads/1/3/0/6/130620902/130620902.html#types+of+bearing+pdf+in+hindi

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001091.bin
245ad2b70a63d969bc575975995389757ed9a68fec5d693dd0af0b58710b82d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1091 7612 bytes

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