Malicious PDF — malware analysis report

Static analysis result for SHA-256 22dba4c9679837c8…

MALICIOUS

PDF

93.3 KB
MD5: 7ea5aa303987cc0194170f2dc3233751 SHA-1: 8a7c902ca113cb74511a801ef07b00eed87802c1 SHA-256: 22dba4c9679837c8738c12b4a2a7a3227f2eecb552bb4a7eec35d4bc64aefc6a
148 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains an embedded XFA form, which is a known vector for exploitation. ClamAV detections indicate the presence of a malicious exploit payload within the PDF. The embedded script payload further supports the malicious nature of the document, likely serving to download and execute a secondary stage.

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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_pdf_script_00000246.bin
d346a6eff62113ade0b5c1c90052e9c82ec7cd162032b6fb8651431832116618
pdf-embedded-script PDF raw stream script payload at offset 0x246 94820 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely