Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfc5162ca6c33cf8…

MALICIOUS

PDF

41.7 KB Authoring application: LibreOffice
MD5: 2834b5fb41ecfa6bddee55e532774e8a SHA-1: 7f3b31d06b95e4cb1e73e48d166eaadc7c8dc5ce SHA-256: dfc5162ca6c33cf86e2d66356eff358230e9ca77e54fd717a6dd7d370565d1c1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various external domains. This suggests a phishing or SEO manipulation campaign. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to traffic redirection or phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mountvernonparking.com/uploads/1/3/0/2/130287505/9562837.pdf
    • http://kosmokayla.com/uploads/1/3/0/2/130288522/1864007.pdf
    • http://laknainc.net/uploads/1/3/0/2/130270869/1516901.pdf
    • http://nivramyoga.com/uploads/1/3/0/4/130435701/edd961b75644.pdf
    • http://studentsbet.com/uploads/1/3/0/5/130552055/3057664.pdf
    • http://michaelmccarthy.net/uploads/1/3/0/5/130588594/texinogalujo.pdf
    • http://engagedsolutions.com/uploads/1/3/0/7/130775879/lusebat.pdf
    • http://llcontractingandwaterproofing.com/uploads/1/3/0/2/130270967/6617154.pdf
    • http://ggingi.com/uploads/1/3/0/6/130604597/ea418.pdf
    • http://san69.com/uploads/1/3/0/6/130620678/bunemufel.pdf
    • http://orlandoaccidentlawyer.net/uploads/1/3/0/5/130543488/jelipepebugo_neleziz_vulugudojigek.pdf
    • http://indynd.com/uploads/1/3/0/7/130775741/dcdb4d5.pdf
    • http://comtec.ch/uploads/1/3/0/4/130483844/gudukikemiz.pdf
    • http://www.wellgencare.com/uploads/1/3/0/3/130379204/2184119.pdf
    • http://michkah.com/uploads/1/3/0/5/130546290/vevopos-vakileno.pdf
    • http://northernlightscoaching.net/uploads/1/3/0/2/130291492/sativobumopin-fepob.pdf
    • http://wadethomasschool.com/uploads/1/3/0/5/130545189/raluvizunuf.pdf
    • http://relicwinecellars.com/uploads/1/3/0/4/130483276/rifuxoviwokif.pdf
    • http://connectingmoments.co.nz/uploads/1/3/0/7/130739806/7403434.pdf
    • http://tessamuse.net/uploads/1/3/0/7/130776056/pisigeroxu.pdf
    • http://tashellemandic.com/uploads/1/3/0/2/130289565/64e070da682aa78.pdf
    • http://myynti.zupticket.com/uploads/1/3/0/7/130739983/33f06.pdf
    • http://donandnakita.com/uploads/1/3/0/3/130323157/4849968.pdf
    • http://allyourteeth.com/uploads/1/3/0/4/130476069/lozujud_rexugadupuv_wufudonovetefuk.pdf
    • http://txt51.slpny.com/uploads/1/3/0/5/130543006/130543006.html#enhanced+adsorption+of+cationic+dyes+using+sulfonic+acid+modified+activated+carbon
    • http://laknainc.net/uploa

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032f5.bin
1110447959503c75238c0f1bcdf9de7fad567fc767730a4530dcb0d3a64541bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32F5 2696 bytes
font_01_sfnt_off00003f30.bin
719c0a4f2220b2bd6734c488f5be372d001af117ff034448bb603f70da6ebc55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F30 8464 bytes

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