Malicious PDF — malware analysis report

Static analysis result for SHA-256 5829a416f830269c…

MALICIOUS

PDF

42.3 KB
MD5: 893e9969f32b3c1320e2b93a6e90a303 SHA-1: 00509d16aa8fe99f6f7e074aa08785229143f453 SHA-256: 5829a416f830269c18354c4f70f12a0e47bbd96b8d50ff34414c8a6e05aa4a9b
156 Risk Score

Malware Insights

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

The PDF file contains embedded script payloads and was detected by ClamAV as Pdf.Exploit.Agent-36830. The embedded script is likely responsible for exploiting a PDF vulnerability to execute malicious code. The document body content appears to be obfuscated JavaScript, making it difficult to determine the exact payload or further actions.

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
dad9129175e10597d40c34a975a2980b2143195e2783aac703723f9ad9ebecf3		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42589 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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