Malicious PDF — malware analysis report

Static analysis result for SHA-256 29d51d1bac332f59…

MALICIOUS

PDF

37.8 KB Authoring application: LibreOffice
MD5: 3a8d26fb66dc92a63711665d103d58ba SHA-1: 8dff7261651af084ad083157f2a1affa043e76c7 SHA-256: 29d51d1bac332f59e50473f900e4f35366e7c9dd3a7ab86f8d58506c0e4d6cb6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This technique is commonly used to distribute phishing content or redirect users to malicious websites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. No scripts were extracted from this sample.

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://anishabhatia.com/uploads/1/3/0/7/130739107/velol.pdf
    • http://mta-sts.mail.webuyhousesone.com/uploads/1/3/0/9/130969332/945426.pdf
    • http://reasonable-person.com/uploads/1/3/0/8/130813897/numufevozuzo.pdf
    • http://lisabouschet.com/uploads/1/3/0/7/130776168/nipebaguzomuk-vagom-puxototateruz-peribevo.pdf
    • http://campkinky.club/uploads/1/3/0/5/130590511/6688602.pdf
    • http://bapsculptor.com/uploads/1/3/0/6/130603761/2c9ee7e7a9a.pdf
    • http://www.imaniashante.com/uploads/1/3/0/8/130814129/wuvex.pdf
    • http://epresence.info/uploads/1/3/0/4/130436250/jizufirebawew-medaxa-sazuf-sakobafuxilatu.pdf
    • http://www.kiff.co.nz/uploads/1/3/0/4/130483647/zonepafofokuw-tiwop-jipotidosi-jawolo.pdf
    • http://dogtalephoto.com/uploads/1/3/0/7/130776738/wukopu-waralimus.pdf
    • http://postmaster.boostyourtan.com/uploads/1/3/0/7/130738676/bometalesiwuva-bajizik.pdf
    • http://www.equestrianeliteatapplejackfarm.com/uploads/1/3/0/5/130588625/130588625.html#arduino+uno+r3+project+pdf
    • http://postmaster.boostyourtan.com/uploads/1/3/0/7/130738676/bometalesiwuva-ba

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003083.bin
cfb3357b20fb01955c1e4a0ed568c791e3a97db8f0fbaa18432a833eaa1d19da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3083 2828 bytes
font_01_sfnt_off00003cf2.bin
6e904f6810cc523e4c2c8c2cbf4707d83b5f904bc97fc018048caa43c020c661		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CF2 7752 bytes

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