Pdf.Dropper.Agent-7324545-0 — PDF malware analysis

Static analysis result for SHA-256 f62454437385b001…

MALICIOUS

PDF

184.9 KB Created: 2009-08-03 10:28:24 +08:00
MD5: 11498c0904660bfe6e2b33cb536518e8 SHA-1: 3c1a19147f1e98d94d0591c04f69c59d5622e7f1 SHA-256: f62454437385b001bcc66e0777fc623888b21551356f374cd4ef8ef560ee7434
140 Risk Score

Malware Insights

Pdf.Dropper.Agent-7324545-0 · confidence 95%

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The PDF contains embedded rich media (Flash) and is flagged by ML classifiers and ClamAV as a malicious dropper. The embedded content, likely an exploit, is designed to download and execute a second-stage payload. While no specific URLs were flagged as malicious, the presence of embedded exploit code and the dropper classification strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-7324545-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7324545-0
  • RichMedia (Flash) high PDF_RICHMEDIA
    PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector (matched inside decoded stream)
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload (matched inside decoded stream)
  • PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE
    PDF has 2 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
  • 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://adobe.com/AS3/2006/builtin
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/pdf/1.3/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objstm_0032_00.bin
86cf71bb204eddd273984a68ac4dd99b5ab7d9a93334be70dfe736883042a648		 pdf-objstm-decoded PDF /ObjStm 32 0 obj (inflated) 1878 bytes

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