Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd49918c33f8a46…

MALICIOUS

PDF

212.7 KB Created: 2017-11-14 09:24:08 -05:00 Authoring application: Microsoft® Word 2016 (via Neevia Document Converter Pro v6.9 (http://neevia.com))
MD5: 89af2639bf592314c25de2a412c7852e SHA-1: 3213a7d0df5a04de827e81866a10c7cf76cfad83 SHA-256: ffd49918c33f8a46dc8d7b7fbdb92b092abae48c977d79a1bf0e34acc7c15977
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains an embedded URI pointing to a WordPress site. ClamAV detected this as a dropper, and ML classification also flagged it as malicious. The embedded URI is likely used to redirect the user to a malicious site for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5402

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7329459-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7329459-0
  • 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://neevia.com
    • https://jdocusign.wordpress.com/about/
    • 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://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.microsoft.com/typography/ctfontshttp://fontfabrik.comYou
    • http://www.microsoft.com/typography/fonts/default.aspx
    • http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0X
    • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0
    • http://crl.microsoft.com/pki/crl/products/MicCodSigPCA_08-31-2010.crl0Z
    • http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0
    • http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0T
    • http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0
    • http://www.microsoft.com/Typography/0

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00006f75.bin
807c175c2b4e16f8ef38d13f67dbf4e98fa6f389f6b8108255afde3240b9f7c3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6F75 190852 bytes
stream_002_off0001d1a6.bin
609386b1e533b5df82a0e1a8d3d778a37767fc61d6f0dbecbd2c26a7b0c031e0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1D1A6 199320 bytes

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