Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6e94d08d4c86da3…

MALICIOUS

PDF

38.5 KB Authoring application: Soda PDF
MD5: 2def8a03e1e9836eb1df0960df1ef4d8 SHA-1: 15b4b75994d99310543ae7a87391e97b9dee7043 SHA-256: d6e94d08d4c86da3ed0eeadbcb1e94f699f7b30ba693b061437dfe03d5244a52
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a common technique for SEO poisoning or phishing campaigns. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection intent. The embedded document body text, though heavily corrupted, appears to be a lure related to demographic transition, likely to mask the malicious intent of the linked URLs.

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 http://lansingmihomesforrent.com/uploads/1/3/0/5/130590217/8840938.pdf
    • http://gardacidadania.com/uploads/1/3/0/6/130639217/0d5bd.pdf
    • http://shivalingumdialogues.com/uploads/1/3/0/8/130813652/ledisonejezusugiwubi.pdf
    • http://www.stephenfeltonmusic.com/uploads/1/3/0/6/130620970/8732066.pdf
    • http://sheri-johnson.com/uploads/1/3/0/5/130539763/7239672.pdf
    • http://msrosspblclassroom.org/uploads/1/3/0/6/130604393/6038458.pdf
    • http://stbfaithformation.com/uploads/1/3/0/8/130814421/3757581.pdf
    • http://westech-rides.com/uploads/1/3/0/6/130639486/05d3531.pdf
    • http://www.worldmaco.com/uploads/1/3/0/6/130639351/d68eb5b2595198.pdf
    • http://mtdefender.com/uploads/1/3/0/4/130488934/84cadc.pdf
    • http://adsl-64-169-66-165.millerpac.com/uploads/1/3/0/5/130550997/130550997.html#what+stage+of+demographic+transition+is+sweden+in
    • http://www.stephenfeltonmusic.com/uploads/1/3/0/6/130620970/8732066
    • http://ptc.company.com/uploads/1/3/0/6/130604947/6677565.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000298b.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x298B 16204 bytes
font_01_sfnt_off00004127.bin
5a1ed7e40c4cddf3c46b9fc87c4b0ff4348eed513a05e10dfb2519e646e0b538		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4127 7304 bytes

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