Malicious PDF — malware analysis report

Static analysis result for SHA-256 51650b4bb696b96f…

MALICIOUS

PDF

166.8 KB Created: 2016-10-10 08:59:52 UTC Authoring application: RAD PDF (via RAD PDF 2.38.3.1 - http://www.radpdf.com)
MD5: ec6d0ca6f35ac0e7d2bad7ba685b816f SHA-1: 74bf724948ed6644409abd3e5964883e559c0fa5 SHA-256: 51650b4bb696b96f5a6d703df4857f8b9e5c61b152d913a6575f98166896e301
112 Risk Score

Malware Insights

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

The PDF file is identified as malicious by ClamAV and an ML classifier. Heuristics indicate it's an image-only lure designed to trick users into clicking an embedded URI. The document body contains multiple URLs, including http://www.diamondcreationslb.com/doc/rdd.htm, which are likely used to redirect the user to malicious sites. The presence of multiple similar URLs suggests a coordinated phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8500

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7212662-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7212662-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 166 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://www.diamondcreationslb.com/doc/rdd.htm
    • http://ruseuropharm.ru/tobi/index.php
    • http://tcil-bd.com/tin-count/zigi/index.php
    • http://tcil-bd.com/wp-includes/IXR/alen/index.php
    • http://tcil-bd.com/dfp/index.php
    • http://tcil-bd.com/pdf/index.php
    • http://www.radpdf.com)/Creator(RAD
    • http://www.dynaforms.com
    • http://www.radpdf.com
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001608.bin
d43e7b69e1e25fe070d522da94c4396003aae12eb7a75aecb2cc0f5e5feef6a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1608 73728 bytes

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