Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca26fd38aa01b145…

MALICIOUS

PDF

32.5 KB Authoring application: Inkscape
MD5: eaf789471fe24dd1e93868a244f99499 SHA-1: 3fc6db4566ea2df40a585166cc6c8787213895c7 SHA-256: ca26fd38aa01b14531414274bdb5d5b7b3785e859adb1e974e3c70d9f19a03ac
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or redirection-based attack. The embedded URLs suggest a link farm designed to direct users to potentially malicious content.

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 https://nogomabena.weebly.com/uploads/1/3/0/5/130539897/rireluliwiziz_kiket.pdf
    • http://metiscollege.ca/uploads/1/3/0/6/130639153/kuribibidigubox_jogasifod_wusadofures_fevawotuji.pdf
    • http://californiaspac.com/uploads/1/3/0/5/130590569/f132992a735.pdf
    • http://thanksvember.com/uploads/1/3/0/2/130272365/7220549.pdf
    • http://readingsbyannie.com/uploads/1/3/0/5/130590467/borijole.pdf
    • http://johnirwinsonlinebusiness.com/uploads/1/3/0/6/130621727/pilulazutu_xuremenusarepu.pdf
    • http://angeloakfitness.com/uploads/1/3/0/2/130289767/golikavazobimuv-nejaluw.pdf
    • http://myteachertoolbelt.com/uploads/1/3/0/2/130273931/e12804895c847c.pdf
    • http://arrested-jreubenlong.com/uploads/1/3/0/6/130620828/bevirijepinup-nisotal-senekodafapovo-firivovur.pdf
    • http://michaudwellness.com/uploads/1/3/0/7/130775354/130775354.html#2d+morphing+animation+in+after+effects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000126e.bin
bb9718c66bbb1d1c2491775c67144b36d77e3c56462d3ee3067e43b547216c30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126E 7596 bytes

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