Malicious PDF — malware analysis report

Static analysis result for SHA-256 91dac8207f664347…

MALICIOUS

PDF

86.5 KB Created: 2016-06-07 11:17:01 +08:00 Authoring application: Microsoft® Office Word 2007 First seen: 2026-05-04
MD5: 218ec9e8c4c8e0f6d4dedddeabb3b5b2 SHA-1: 838df64d07e15502d5e0349413308c4b496f92a5 SHA-256: 91dac8207f6643476e145059df9c44e922222134d35be2793c9f81177c63c404
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. ClamAV identified the file as a dropper, indicating it is likely used to download and execute additional malicious content. The embedded URL is the primary indicator of the malicious intent, suggesting a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0450

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7283056-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7283056-0
  • 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://viral-oman.com/wp-admin/user/ PDF link annotation
    • http://www.microsoft.com/typography/ctfontshttp://fontfabrik.comYouIn PDF document text
    • http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0XIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicCodSigPCA_08-31-2010.crl0ZIn PDF document text
    • http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0TIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0In PDF document text
    • http://www.microsoft.com/typographyIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000018fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x18FC 177568 bytes
SHA-256: 4a73654ce920bc816ddb5d809346ffda41a4bc02659781fa0c3452dd6073aea4

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