Pdf.Dropper.Agent-7311695-0 — PDF malware analysis

Static analysis result for SHA-256 da7f82d0c80c7d95…

MALICIOUS

PDF

788.0 KB First seen: 2026-05-03
MD5: c03bcb0cde62b3f45b4d772ab635e2b0 SHA-1: dd2c3592281ec09602aaa8488eb2f4509f75ef81 SHA-256: da7f82d0c80c7d95d787185c04ecc116062bc655e513eaf1ccb4a1423bdbd289
156 Risk Score

Malware Insights

Pdf.Dropper.Agent-7311695-0 · confidence 95%

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF was detected by ClamAV as Pdf.Dropper.Agent-7311695-0, indicating it is a dropper. Heuristics indicate the presence of JavaScript and that the PDF is encrypted with JavaScript, suggesting the payload is obfuscated. The combination of these factors strongly suggests the PDF's purpose is to download and execute a secondary malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Dropper.Agent-7311695-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7311695-0
  • Encrypted PDF carries /OpenAction — payload hidden from static analysis high PDF_ENCRYPTED_WITH_JS
    PDF declares /Encrypt and also references an executable trigger (/OpenAction). Document encryption hides the JavaScript body and stream contents from static scanners — combined with auto-execution indicators this is a known evasion pattern used to deliver weaponised JavaScript that the analyst cannot inspect without the decryption key.
  • JavaScript action low 1 related finding PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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://ns.adobe.com/xdp/ In PDF document text
    • http://www.xfa.org/schema/xci/3.0/In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.8/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text

Related samples 8

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_000_off0006d7f3.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6D7F3 289498 bytes
SHA-256: dcefc16710d335e69f60cdd8a0e174d43939d02eaa8dd4c6d7ce4ca63f06495b

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