Malicious PDF — malware analysis report

Static analysis result for SHA-256 720ddfadad091b2d…

MALICIOUS

PDF

29.6 KB Authoring application: Pdftk
MD5: 30fc51df362734c5453bbc60ba4fe33f SHA-1: 24791b8ef685530927e04079e48e3572afa5e762 SHA-256: 720ddfadad091b2d75fd583eae94359ec2ec28fd7e07e1104dbdd3f803723df9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which is a strong indicator of malicious intent. The ClamAV detection and ML classifier further support this assessment. The embedded links likely serve to redirect users to malicious websites or to manipulate search engine results.

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://andersoncapsim.com/uploads/1/3/0/6/130640060/ranimavimaluruv_poxibaduj.pdf
    • http://mypwonline.com/uploads/1/3/0/5/130588659/1dbaa5a.pdf
    • http://knottypinewoods.com/uploads/1/3/0/7/130739346/cd8171ee7a1eaac.pdf
    • http://roryward.com/uploads/1/3/0/6/130621228/notebaz.pdf
    • http://www.lovaascabinetry.com/uploads/1/3/0/4/130489149/goseborexases.pdf
    • http://www.yoyabusinessconsultancy.com/uploads/1/3/0/4/130483351/70631.pdf
    • http://alliesonthejourney.com/uploads/1/3/0/5/130540366/8410655.pdf
    • http://morningsidepdmc.com/uploads/1/3/0/7/130775172/23285db4b22b7d.pdf
    • http://ammaartdebienetre.com/uploads/1/3/0/5/130588703/2908703.pdf
    • http://southernfarmandgarden.com/uploads/1/3/0/6/130621985/4626364.pdf
    • http://www.lyra-di-orfeo.fr/uploads/1/3/0/2/130273610/ketukoropatepa-luramekujiwer-kibijuke.pdf
    • http://www.jaketaz.net/uploads/1/3/0/5/130539992/ruzedewukaw.pdf
    • http://amazon-spirit.com/uploads/1/3/0/6/130620598/4840072.pdf
    • http://lhkv4.salon225.com/uploads/1/3/0/8/130874652/130874652.html#airbus+a320+cockpit+simulator+for+sale

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001c00.bin
2af3ffca13f9d31e0af40d370d97407d18bff5bd52a735961f1d36b9f99c668b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C00 7292 bytes

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