Malicious PDF — malware analysis report

Static analysis result for SHA-256 99a2941600351693…

MALICIOUS

PDF

285.3 KB Created: 2015-05-26 10:14:08 +02:00 Authoring application: DOMPDF
MD5: 29eb5f95c40403894a478acf6d94c3f7 SHA-1: 2329d6cf88a8bc7b0ab7242f3c1167aad7e81bdc SHA-256: 99a294160035169393099384eb1c292abfbbd551b701a371c00dac20d1549dfa
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains an embedded URI pointing to a suspicious URL, and ClamAV identified it as a dropper. The document body is largely unreadable, but the presence of the external URI strongly suggests a malicious intent to redirect the user to a compromised site for payload delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier clean score 0.0350

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7285543-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7285543-0
  • 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.gettyimages.com8BIM
    • http://asherong.sg/marineblue/marineblue/wp-content/uploads/IwPduNOoEi
    • http://www.iec.ch
    • http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://ns.adobe.com/photoshop/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://ns.adobe.com/camera-raw-settings/1.0/
    • http://www.gettyimages.com

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_000_off00000255.bin
614f6209bc2997f330a867e3bb34403cf9ca707d49031c85215d7d010858540c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x255 169564 bytes
stream_001_off00028968.bin
8c39e8964c4d9cd47056a45b98b7e88c1fc50dd9b8e8a3dfeaadfc7158745cbe		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x28968 168816 bytes

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