Malicious PDF — malware analysis report

Static analysis result for SHA-256 48c479e275ca985a…

MALICIOUS

PDF

37.4 KB Authoring application: SWFTools
MD5: c67174e586b2e2cd870863747f39dbbf SHA-1: b6c222884e5509967775c2b9417752327b46ad57 SHA-256: 48c479e275ca985a7487a2bdc4dffe3d7195d6cf4a3307bf5952de1d397d1c6d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO poisoning or phishing lures. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. The primary attack pattern involves directing users to a network of linked PDF files hosted across multiple domains.

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://windswept.co.za/uploads/1/3/0/2/130287548/belegutet.pdf
    • http://4bodyandsole.com/uploads/1/3/0/3/130313378/gerizoxudo.pdf
    • http://northwestpetscanning.com/uploads/1/3/0/3/130313024/fd225.pdf
    • http://projectcuremanga.com/uploads/1/3/0/5/130550768/wiroxilonukibawipeti.pdf
    • http://monto.com.mx/uploads/1/3/0/4/130490444/243a64d0ede12.pdf
    • http://emiratescabincrew.co.uk/uploads/1/3/0/3/130313414/013e5e8.pdf
    • http://anniescandy.com/uploads/1/3/0/4/130488569/bodejavepedate-wevimapanefari.pdf
    • http://summitphotographer.com/uploads/1/3/0/2/130273589/jopevom-kobexa-movumataga-jebeza.pdf
    • http://designslgt.com/uploads/1/3/0/6/130621084/xukomovipulegen.pdf
    • http://northernstarproperty.com/uploads/1/3/0/6/130620567/7505048.pdf
    • http://oakclass.com/uploads/1/3/0/3/130379293/130379293.html#acromioclavicular+joint+separation+radiopaedia

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001446.bin
1e197f5fcd031d06620dacc6fb85eaa81d4aff27b7d82c4c27aadc5b3cba7065		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1446 8676 bytes

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