Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8b349866483fca…

MALICIOUS

PDF

37.5 KB Authoring application: Karbon
MD5: 4d004f5b1d06297d23157883fdbde380 SHA-1: 5ac08b644f8aae3a61d3e9dc986a02abeb15690c SHA-256: 0e8b349866483fcabd2acfbcc18724f7c04ce42e395e31d3946bde7e318c5a40
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. These links point to various domains, suggesting a coordinated effort to manipulate search engine results or distribute malicious content. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted from this sample, but the link farm strongly implies a phishing or SEO-based distribution tactic.

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://northcountryhomeinspection.com/uploads/1/3/0/5/130551656/593178.pdf
    • http://bargeacbll.com/uploads/1/3/0/4/130483645/04f4977a3581.pdf
    • http://ded-consultoriaeservicos.com/uploads/1/3/0/5/130588512/1584c8.pdf
    • http://soulcenteredcoach.co/uploads/1/3/0/4/130488734/eafc044eb6.pdf
    • http://larryjroman.com/uploads/1/3/0/6/130605292/ddf95d4.pdf
    • http://sowoo.co/uploads/1/3/0/4/130483923/vawuvunugonifa.pdf
    • http://primeindustryupgrades.net/uploads/1/3/0/2/130288637/6061094.pdf
    • http://crystalightwood.com/uploads/1/3/0/2/130289209/2241784.pdf
    • http://angicreativesstudio.com/uploads/1/3/0/2/130273872/ea9e3a52f.pdf
    • http://calciomaestro.com/uploads/1/3/0/5/130588845/7699114.pdf
    • http://hostmaster.combiforce.nl/uploads/1/3/0/4/130477829/1473330.pdf
    • http://kyle4style.com/uploads/1/3/0/8/130814129/xowugorefafatil.pdf
    • http://josimpelocustomtattoos.com/uploads/1/3/0/8/130873996/faxadutukufika_getefufa.pdf
    • http://milwaukeegroup.net/uploads/1/3/0/4/130483697/jizunosawenum.pdf
    • http://ourlittleflowers.com/uploads/1/3/0/6/130605253/dapona_mizavuf.pdf
    • http://a-taste-of-heaven.com/uploads/1/3/0/3/130379597/fukataja-zative-pamok.pdf
    • http://ninety-percent.com/uploads/1/3/0/8/130815080/721ddddb.pdf
    • http://www.fbcosp.org/uploads/1/3/0/6/130621546/4b012f.pdf
    • http://hostmaster.naui-italy.org/uploads/1/3/0/4/130435725/pizurekilomezedoxox.pdf
    • http://elispinheirobellydance.com/uploads/1/3/0/3/130379770/2a10e61da7f.pdf
    • http://toplinedevelopments.org/uploads/1/3/0/3/130379634/8211678.pdf
    • http://wandafulkids.com/uploads/1/3/0/7/130776295/c2b07a2d5f2.pdf
    • http://www.makingmontana.org/uploads/1/3/0/6/130640040/bujemutumoxi_pudipowadujitu_zoruke.pdf
    • http://london-office-2.pleasingfood.com/uploads/1/3/0/4/130488265/130488265.html#mettler+toledo+viva+scale+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f9e.bin
10bd2ccfd7113d06d50be32f66763d9df597c2d88ce036758a9228de1a8a1218		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9E 8072 bytes

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