Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eb60be186b4c588…

MALICIOUS

PDF

35.4 KB Authoring application: OpenOffice Draw
MD5: dd7a55149e4356a314fd676655c96cdb SHA-1: 1ecf51ab397c25597f21d224eeb29a383e614beb SHA-256: 8eb60be186b4c58867d1406340394940999589f18700c62b8a7729113dba88b3
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 links to external PDF documents, a technique often used for SEO manipulation or to distribute malware. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. No scripts were extracted, but the primary attack pattern involves directing users to a network of potentially malicious PDF files.

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://reneefraley.com/uploads/1/3/0/6/130620672/bulava.pdf
    • http://xinhaotiandiyulecheng.br3h.com/uploads/1/3/0/2/130273907/582344.pdf
    • http://aqzsystems.us/uploads/1/3/0/2/130270845/mobugozituzeb.pdf
    • http://thoughtsandimpressions.org/uploads/1/3/0/5/130588857/xegunojoxopafu.pdf
    • http://edumorethailand.com/uploads/1/3/0/9/130969837/ab5233.pdf
    • http://www.christinewallphoto.com/uploads/1/3/0/7/130738676/jivowoge.pdf
    • http://onedaywritten.com/uploads/1/3/0/4/130488741/9466852.pdf
    • http://teamworkprofiles.com/uploads/1/3/0/8/130874535/lusedurawi-pikosixu.pdf
    • http://newlocalg.net/uploads/1/3/0/6/130605229/zukumux.pdf
    • http://serumfacts.com/uploads/1/3/0/3/130313037/7fdb7.pdf
    • http://www.cherillee.com/uploads/1/3/0/5/130551512/zusane.pdf
    • http://unitedislamiccenter.com/uploads/1/3/0/6/130621998/nuxumubujosedukufu.pdf
    • http://hashtagbottles.com/uploads/1/3/0/8/130814933/6059413.pdf
    • http://thisisallisonlee.com/uploads/1/3/0/2/130289813/bef98a0188ffc.pdf
    • http://9i9n8.salon225.com/uploads/1/3/0/6/130604312/130604312.html#non+flowering+plants+names+list

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003232.bin
0b85425211f472ed1357cd1385d605f3768360395ac72b780b3c3e5bf24037f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3232 7496 bytes

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