Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b413966e7741ba0…

MALICIOUS

PDF

270.8 KB Created: 2016-04-21 01:53:19 UTC Authoring application: RAD PDF (via RAD PDF 2.36.1.1 - http://www.radpdf.com) First seen: 2026-05-04
MD5: 05d61c9f327f1674e4765c9f46cdb7f1 SHA-1: cd25c6b241b8a3114a2bce7198999d5b30124144 SHA-256: 1b413966e7741ba00abf24c4628fd42d9eceeb97062603d0147ce26cce3cbd5c
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 embedded URLs pointing to suspicious domains, including one that appears to be a lure for Adobe updates. The document body also contains these URLs, suggesting an attempt to direct the user to malicious sites. The presence of external URIs and the overall nature of PDF droppers indicate a likely spearphishing attachment attack pattern.

Machine Learning

  • Nyx PDF Classifier clean score 0.0038

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7235406-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7235406-0
  • 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://maisempresas.co/styles/_viti_doc/_notes/adobe%2016/ PDF link annotation
    • http://maisempresas.co/styles/_viti_doc/_notes/adobePDF link annotation
    • http://nvnickel.com/cron/chi/DHL_AUTO/index.php?email=%0%In PDF document text
    • http://www.radpdf.comIn PDF document text
    • http://www.dynaforms.comIn PDF document text
    • http://j646569.myjino.ru/abkIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • 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/Typography/0In PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_000_off000007ec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7EC 173484 bytes
SHA-256: f3bf9704ae1a1b01d6eaba8c4203245dfddd8957cdd25f52cca46afe823164ba
stream_001_off0001470a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1470A 169828 bytes
SHA-256: c9ddb44ec7e8b38fdf5b980ecaa8c8dadb424a7c6fa95c5a17b8b9a719879d7b

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