Malicious PDF — malware analysis report

Static analysis result for SHA-256 087c84aea682cdfd…

MALICIOUS

PDF

55.0 KB Authoring application: Inkscape
MD5: e36e24cc18352bcf288a8048812229c8 SHA-1: 060d735de492ac48407be74ffbffbfc3df13b463 SHA-256: 087c84aea682cdfd1dfdce211da29ea3fcbcec7eb8e4ca409832b2b60b925dae
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. ClamAV and ML classifiers also flagged this file as malicious, specifically identifying it as a phishing attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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://www.mariacarasuarez.com/uploads/1/3/0/4/130476045/midesizojuvuvemagiga.pdf
    • http://ripperwebsolutions.com/uploads/1/3/0/4/130489253/9326235.pdf
    • http://materialsmatter.net/uploads/1/3/0/5/130543045/vevubusaga_minikosuwuzup_foxuzokojepo.pdf
    • http://wavesmediagroup.com/uploads/1/3/0/4/130488371/b9c16612ac5e536.pdf
    • http://www.kurdistantours.net/uploads/1/3/0/6/130621357/680701.pdf
    • http://mail.wmfhillinc.com/uploads/1/3/0/7/130739878/lerizobakux_rotemefufok_fufured.pdf
    • http://belleaircommunityfoundation.com/uploads/1/3/0/6/130620927/48e74dcf295.pdf
    • http://boudoirsbysarah.com/uploads/1/3/0/6/130605521/8339117.pdf
    • http://nazproekt.com/uploads/1/3/0/2/130287313/6610219.pdf
    • http://paidcustomers.com/uploads/1/3/0/8/130813592/jotalajizapetuv.pdf
    • http://www.drjrealtalkvlog.com/uploads/1/3/0/6/130620985/sozuposega-vedowakuvo-gojokabigol.pdf
    • http://animators.directory/uploads/1/3/0/7/130739648/duniwigejajepej.pdf
    • http://sta-66-99-58-199.ladse.org/uploads/1/3/0/7/130739831/130739831.html#brazil+squad+2018+fifa+world+cup

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001005.bin
7edebdf45eaec280c902f854ae50a0bb737e0533b3e03798b454c6cb1d130bb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1005 10792 bytes

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