Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eadd51a98fce7db…

MALICIOUS

PDF

39.5 KB Authoring application: GIMP
MD5: f1eb796a3458a6980b7af4cf302aa56f SHA-1: c09e6f53d2da2c52864e0cb58ae3a321dba3ebf3 SHA-256: 7eadd51a98fce7db50630ea5fa0d54e43aeca0c6a6513a19c1a6ae4f811f7b09
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to external PDF files, masquerading as a premium Adobe Acrobat APK. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, likely serving as lures or redirectors for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://costaricaherbalmedicine.com/uploads/1/3/0/6/130639201/famusagezapikuz_xusotumoredide_xaliduletijini.pdf
    • http://deafperutour.com/uploads/1/3/0/5/130540293/pezesorovotavix_jumolakufinedij_riziruwi_pezudeli.pdf
    • http://kateforcouncil.org/uploads/1/3/0/3/130379193/6645390.pdf
    • http://moderncountrydoctor.ca/uploads/1/3/0/5/130588532/191d35b1628.pdf
    • http://misssupremepurityqueen.com/uploads/1/3/0/8/130814510/130814510.html#adobe+acrobat+premium+apk

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001115.bin
487607ed0441e1446c110f357123f7b4432857506c872c1ac83efc58a10f24db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1115 9056 bytes

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