Malicious PDF — malware analysis report

Static analysis result for SHA-256 29be3b4105b19f94…

MALICIOUS

PDF

43.8 KB Authoring application: OpenOffice.org
MD5: 058f739073f443498f397b53ac0108cb SHA-1: e6704fe2b1d6a16dd9e0152500e629305072d54a SHA-256: 29be3b4105b19f94b52af69e8ce02deb8acb4318139d6ed9aa3e643bcb3c0744
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 external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or traffic redirection. The embedded URLs are the primary IOCs, pointing to potentially malicious content or SEO spam pages.

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://xeze.man-energy.ru/uploads/2020/01/28/2c929.pdf
    • http://courtvision.net/uploads/1/3/0/2/130289209/xuloxunoziferuk.pdf
    • http://neasoto.com/uploads/1/3/0/3/130323555/wuzomatasasukotewu.pdf
    • http://nyanyanizhniynovgorod.ru/uploads/1/3/0/2/130272921/kaguxo-nariba-pupejujijojelu.pdf
    • https://fasakolobeb.weebly.com/uploads/1/3/0/5/130540788/dupegiw-jadivitivolefam-wekedivatoni-mesekezod.pdf
    • http://droscarparada.com/uploads/1/3/0/4/130483307/7db5b.pdf
    • http://concertsbythecreek.com/uploads/1/3/0/4/130483520/fasiku.pdf
    • http://tgi420.ca/uploads/1/3/0/5/130590403/xajibodu.pdf
    • http://monthlyphysicalchallenge.com/uploads/1/3/0/6/130621665/kigitasetob.pdf
    • http://meredithbirrell.com/uploads/1/3/0/6/130620835/130620835.html#ways+to+recognize+employees+performance

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001274.bin
b0d6caf693676fceedb085f6a94f4a161026d4f1024d14b039f0d16c871ee6a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1274 8504 bytes

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