Malicious PDF — malware analysis report

Static analysis result for SHA-256 cae5f6071d41b5fc…

MALICIOUS

PDF

38.9 KB Authoring application: Inkscape
MD5: ed11c5c89778fd75caf368e4e62361d1 SHA-1: 4148ef33567502afaa0df78bb4cc4c0fb49abcf4 SHA-256: cae5f6071d41b5fc40ca8de8bb7defaef2a212e5bfef7ae17a47e2ac9a147b9e
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, many of which point to other PDF files, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise, leading to potentially harmful content.

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://barenaturebeauty.com.au/uploads/1/3/0/4/130476778/woxalasalezuvuf.pdf
    • http://bisonbobschuckwagon.com/uploads/1/3/0/4/130489418/bivenir-jowavumezim.pdf
    • http://montevistacalvarybaptist.org/uploads/1/3/0/5/130546457/14e7dec75a4ec4.pdf
    • http://reklam5.net/uploads/1/3/0/6/130620950/kifodera.pdf
    • http://mobajo.dljatebja.com/uploads/2020/01/28/6657983.pdf
    • http://scannerua.xyz/uploads/2020/01/28/jipevezanofabu.pdf
    • http://southernparadisecatering.com/uploads/1/3/0/6/130639321/bilujolij.pdf
    • http://dmtraining.net/uploads/1/3/0/4/130483413/jenepoxaxasar-sawadakuxakane-rabij-gixulasovawu.pdf
    • http://wordpress-photography-themes.com/uploads/1/3/0/2/130288594/5a019e.pdf
    • http://21stcenturyink.com/uploads/1/3/0/6/130605111/1606123.pdf
    • http://nobuhotelriyadh-fullsite.devsite-1.com/uploads/1/3/0/6/130621845/130621845.html#groundsheet+repair+kit

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012fd.bin
4d4a08a7c19c5886b586f787cf18ebc10bb25d3a05b7d552862049025d9a516d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FD 9392 bytes

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