Malicious PDF — malware analysis report

Static analysis result for SHA-256 120b4b98d02f7bb1…

MALICIOUS

PDF

34.1 KB Authoring application: OpenOffice Draw
MD5: 4b2b89c1d676760d06335911b5cd3922 SHA-1: 74d31d450be35cfab34addc639318c2eb83fe5fa SHA-256: 120b4b98d02f7bb19977080ac1304169254f76e97579431f8eb2b6bc1f11f57f
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a phishing or malware distribution attempt. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports this. The document body, though partially corrupted, mentions 'Brochure templates pdf free' and includes URLs that likely lead to malicious content, indicating a lure to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://psychastar.com/uploads/1/3/0/6/130639709/7cc5e6.pdf
    • http://coopercherryhillk12njus.weebly.com/uploads/1/3/0/6/130621964/5ac011f79e5.pdf
    • http://nwbookpro.com/uploads/1/3/0/2/130287914/sewomo-weweb-wegax-kepasisoluj.pdf
    • http://midlandareahomes.org/uploads/1/3/0/3/130379110/rerenevozeme_tizirodogepi.pdf
    • http://misbailes.com/uploads/1/3/0/3/130323488/130323488.html#brochure+templates+pdf+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001046.bin
38a922d09ecf28be9ece6bdcc0dad18803e7da31670db45826121945d7a1a747		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1046 8176 bytes

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