Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0c8c8e6f163e2f6…

MALICIOUS

PDF

42.5 KB
MD5: 69a0232d347d9ff364de49d2db084cd4 SHA-1: a037feb10a56961279e922c3c12d20031d05b9da SHA-256: e0c8c8e6f163e2f656f267f71fbac12f68d110aac6a7f97b678502ff6465fe2d
156 Risk Score

Malware Insights

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

The critical ClamAV detection 'Pdf.Exploit.Agent-36830' and the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic indicate that this PDF contains malicious embedded content. The embedded JavaScript, although obfuscated, is designed to execute and likely download further malicious content. The presence of an embedded file further supports this. The benign Adobe and XFA URLs are not indicative of malicious activity.

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
a2933163ce34fe424d151ec8e64ed7a3165386051769ad4523c9bbda0ec3c4ea		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42764 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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