Malicious PDF — malware analysis report

Static analysis result for SHA-256 293a8f9e4e6c6a19…

MALICIOUS

PDF

42.5 KB
MD5: 63ae4889a519df0e041bb4b514731c98 SHA-1: 40691a79d3eb20071083f1d7e5ed696604c8190d SHA-256: 293a8f9e4e6c6a19895b4bcc16d775bcb5c63b6bfec4891dd1bee07947edb71d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The critical ClamAV heuristic firings indicate this PDF file is malicious, specifically identified as 'Pdf.Exploit.Agent-36830'. The presence of an embedded script payload and an embedded file further supports the conclusion that this document is designed to exploit vulnerabilities and deliver a malicious payload. No document body text was available for analysis, and the embedded script was too obfuscated to determine its exact function.

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
9d5375477cb5e177f215fea7eb1c0d537eb6e8c3170d5f6b3f5ac7692af48c5a
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42789 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely