Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6a8392c35d87966…

MALICIOUS

PDF

37.8 KB Authoring application: SWFTools
MD5: 9d8c366f26156d7b433dbba3d44e4dc1 SHA-1: d4e4e1dbc66b2a9681db5aa71eb1432182a9b436 SHA-256: a6a8392c35d879664ffc35737f71226ad47c377325fb4f211b404ae6ba01ba6f
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This technique is often used to create link farms for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery through these linked PDFs.

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://drivelifewild.com/uploads/1/3/0/2/130289703/rekowatu.pdf
    • http://sotatodev.3ndfl-nalogi.ru/uploads/2020/01/29/ea2788d543eba.pdf
    • http://susanrydberg.com/uploads/1/3/0/2/130287401/7591159.pdf
    • http://activityedge.com/uploads/2020/01/28/e84a5d3.pdf
    • http://crossingbridgeslifecoaching.com/uploads/1/3/0/2/130271226/205477.pdf
    • http://beltwayig.com/uploads/1/3/0/5/130551623/5389414.pdf
    • http://mndball.com/uploads/1/3/0/6/130639924/5891546.pdf
    • http://dnborders.com/uploads/1/3/0/6/130621912/barozefupawurinudug.pdf
    • http://yournaturallybrightpatiocovers.com/uploads/1/3/0/5/130551198/5539939.pdf
    • http://mdcspa.com/uploads/1/3/0/2/130289803/e904d183.pdf
    • http://cyclebavaria.com/uploads/1/3/0/5/130550770/130550770.html#battle+royale+games+free+online+no

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001232.bin
542d02e93a0d0008ed8eb53a7e2223404b411a4f7e794205ec7b97237cfc8e9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1232 8400 bytes

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