Malicious PDF — malware analysis report

Static analysis result for SHA-256 46064661e65e5cbb…

MALICIOUS

PDF

36.2 KB Authoring application: QPDF
MD5: ede0096045795fe3716388a5fe927f44 SHA-1: 8006a4af849c15e93917d206d2839087fcf857da SHA-256: 46064661e65e5cbb9d82343c854b10279c423291c02edee8ffc0ab1178aa6b7a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This technique, identified as PDF_SEO_LINK_FARM, is commonly used to create link farms for SEO manipulation or to redirect users to malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection intent. The ML classifier also strongly indicated maliciousness.

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://netanawest.com/uploads/1/3/0/8/130814247/zosekor.pdf
    • http://millerfamilylawn.com/uploads/1/3/0/4/130488688/6f580018a56ad.pdf
    • http://strakowska.com/uploads/1/3/0/6/130639465/zuwujafowafazefetoja.pdf
    • http://ncslibrary.org/uploads/1/3/0/5/130590555/9135445.pdf
    • http://davebaskind.com/uploads/1/3/0/5/130539518/tevuzugud.pdf
    • http://ashtangayogacompiegne.com/uploads/1/3/0/6/130604069/f0392bfe73c17d5.pdf
    • http://familiesfeedinghope.com/uploads/1/3/0/5/130588961/sajodenut-luvima-nekumosa.pdf
    • http://emptysands.net/uploads/1/3/0/4/130483125/ginizoboxevumu-kiguxinevovorar.pdf
    • http://jballsy.com/uploads/1/3/0/6/130621873/xutet_kalizevezibiso_balibegobez_xibabidisomifo.pdf
    • http://behinddaytona.com/uploads/1/3/0/8/130874501/jazifoz_mezilovomowu_waxapanijodokem.pdf
    • http://mychristmastreeornament.com/uploads/1/3/0/6/130603753/fopelijawomugej.pdf
    • http://www.augustsartwork.com/uploads/1/3/0/3/130324320/a58b3da6b75ac.pdf
    • http://ventonconsulting.com/uploads/1/3/0/3/130379169/825774.pdf
    • http://www.darenn.com/uploads/1/3/0/2/130271043/130271043.html#advertising+media+planning+a+brand+management+approach

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032cc.bin
13d5f1f89fa9a581065bdf0b93cf4dec407009aff2c82869407b6924b7071ad0
pdf-font-stream PDF embedded font (sfnt) at offset 0x32CC 8416 bytes