Malicious PDF — malware analysis report

Static analysis result for SHA-256 87673996cddbc28f…

MALICIOUS

PDF

88.3 KB Created: 2016-06-01 07:58:44 +08:00 Authoring application: Microsoft® Office Word 2007 First seen: 2026-05-04
MD5: 50c4c913f3d993b25055eaf60b42df34 SHA-1: 14ed57d6334b73df35d913452e67e3cf10d89b82 SHA-256: 87673996cddbc28f30a0b78d711dc5f789a7ad69db1ebf3f1bd56e6f66dd0a39
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document identified by ClamAV as Pdf.Dropper.Agent-7279327-0. It contains an embedded URI pointing to 'http://zedopastel.com.br/includes/', which is likely a malicious domain used to host further stages of an attack. The PDF structure itself appears to be obfuscated, suggesting an attempt to hide malicious content.

Machine Learning

  • Nyx PDF Classifier clean score 0.1105

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7279327-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7279327-0
  • 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://zedopastel.com.br/includes/ 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_002_off000020c2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x20C2 177568 bytes
SHA-256: 4a73654ce920bc816ddb5d809346ffda41a4bc02659781fa0c3452dd6073aea4

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