Malicious PDF — malware analysis report

Static analysis result for SHA-256 deec11fc9e4278f9…

MALICIOUS

PDF

36.0 KB Authoring application: Adobe PDF Library 9.0
MD5: 291299fbc3f38e6413415d05065832ac SHA-1: 532b8eb022e08cc77537b5e7a26c4987e36884b2 SHA-256: deec11fc9e4278f9ef6bf67469da646c9c3e7f200b9ef19dcf130ef78a1cd317
152 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or redirection mechanism designed to lead users to potentially malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic-driving intent. No scripts were extracted from this sample.

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://kenosismusic.com/uploads/1/3/0/6/130640114/54375360.pdf
    • http://phoenix-exchange.com/uploads/1/3/0/5/130588833/vasulexol.pdf
    • http://www.insiemeperpoggio.it/uploads/1/3/0/8/130813630/1bf7c9bb.pdf
    • http://dreamasweetdream.com/uploads/1/3/0/7/130739579/aa880d22af2b2e.pdf
    • http://hapicos.com/uploads/1/3/0/8/130813934/3474456.pdf
    • http://notecastapp.com/uploads/1/3/0/5/130589354/2634759.pdf
    • http://rakiurahelicopters.com/uploads/1/3/0/6/130605041/9902970.pdf
    • http://troshkov.org/uploads/1/3/0/2/130272428/jufepak_bogef_xubinuvot.pdf
    • http://oasischronicles.com/uploads/1/3/0/4/130490584/2816970.pdf
    • http://nizhonipropertiesllc.com/uploads/1/3/0/7/130738727/widopaliwefoveb.pdf
    • http://ma-niak.com/uploads/1/3/0/6/130639269/dofazatogumuf.pdf
    • http://corporativos.sindelantal.mx/uploads/1/3/0/6/130621411/130621411.html#brazil+2018+world+cup+squad+numbers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003553.bin
d5a0b74098d5fce9eb70c8651bf43fd9a36d14f435ee734b71c1e72f2970dc71
pdf-font-stream PDF embedded font (sfnt) at offset 0x3553 8012 bytes