Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dad9fe0e3044d18…

MALICIOUS

PDF

309.7 KB Created: 2017-11-13 20:41:11 +08:00 Authoring application: Microsoft® Word 2013
MD5: 592c51eec2c5b10de4b65601410a79c1 SHA-1: c8fb51c5fdb4387f99ea398c9e53173cc13ecfa7 SHA-256: 0dad9fe0e3044d1850f69e8823fd2e06f719a3615dbeaa901d0c2f146456d5b4
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as a malicious PDF dropper by ClamAV. It contains an embedded URL that points to a suspicious domain, likely intended to host a secondary payload or redirect the user to a phishing site. The PDF structure and embedded URI heuristic further support the malicious intent of directing users to external, potentially harmful content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0745

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7228431-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7228431-0
  • 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 https://www.dilekperisi.net/wp-includes/cs/VALIDATE/
    • http://www.microsoft.com/typography/ctfontshttp://lucasfonts.comMicrosoft
    • http://en.wikipedia.org/wiki/MIT_License
    • 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
    • http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl0a
    • http://www.microsoft.com/pkiops/certs/MicCodSigPCA2011_2011-07-08.crt0
    • http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl0^
    • http://www.microsoft.com/pki/certs/MicRooCerAut2011_2011_03_22.crt0��
    • http://www.microsoft.com/pkiops/docs/primarycps.htm0@

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00000ef0.bin
e545f8e55425cb7d0a0e216dca2c56abac0ce240288fd6ada41b4a1588236773		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xEF0 385708 bytes
stream_003_off0002a2df.bin
bf77dfffde78e8a0b2d0f8d81a43297fb861fbd32e58effaada2742b3abf3e71		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A2DF 333332 bytes

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