Pdf.Exploit.Agent-36830 — PDF malware analysis

Static analysis result for SHA-256 c5bfcc51ba9320f8…

MALICIOUS

PDF

42.5 KB
MD5: 7f216c2a41bdf9903f7d46aff42e5362 SHA-1: 9278e5fb94ef5cf50dc2440351f3ec8ed8142d2f SHA-256: c5bfcc51ba9320f8074101f01e36f30c85ec1c0d1045641f04769468ed2a626e
196 Risk Score

Malware Insights

Pdf.Exploit.Agent-36830 · confidence 95%

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection of 'Pdf.Exploit.Agent-36830' strongly indicates malicious intent. The presence of XFA forms with executable scripts (PDF_XFA_SCRIPT) suggests the file is designed to exploit vulnerabilities within PDF viewers. Embedded files and URLs further support the pattern of a dropper or exploit kit attempting to download and execute a secondary payload.

Heuristics 7

  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • 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/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xfdf/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
0a2224c4023b216235b61c3fc4dd17bbfac1ab23a545687f51b97604cf654712		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD7 46 bytes
embedded_file_obj0009.bin
5275acc1f9fd68016b4ae4b02f6f391c37895b52cad670169df8016d8f5644b1		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x14D 687 bytes
embedded_file_obj0010.bin
97314d9231379623057a8a77eeb79f9354bacffa50753a0f63b9e87e8d67dbf2		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x447 186 bytes
embedded_file_obj0011.bin
3f6ef8125a8de994d5a66c1728a4e596ffb2c6f20dd69b29c44d93641841649d		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x54C 379 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x712 190 bytes
embedded_file_obj0014.bin
fa14a6f779fe05ae124bde28b261c83aff5a6b329e3570268e3e40f80872ee7b		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x81D 40708 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
78b09463af5cd373870eae2e3e83de87b7f6b659e0d0117ab4c09d90ebb2ad95		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xA76B 68 bytes

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