Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b40ee6fd2e9c654…

MALICIOUS

PDF

93.5 KB
MD5: 3f6b6fac97463c707947c5f016a3984b SHA-1: 59d78a6bc4a1e17307798511348e6faa0de5a921 SHA-256: 7b40ee6fd2e9c6546fc643750fabe902f207064861701973a7c3c58cacc55e2a
148 Risk Score

Malware Insights

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

The PDF file contains an XFA form and an embedded script payload, strongly indicating malicious intent. ClamAV detections confirm this, identifying it as 'Pdf.Exploit.Agent-6136306-0' and 'Pdf.Exploit.Agent-36769' on an extracted artifact. The embedded script is likely responsible for delivering the exploit payload.

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
498c6d6c4ff24ec191b4aca368103cb132a9eb6b0f63ae4c7e0763f7b764e03c
pdf-embedded-script PDF raw stream script payload at offset 0x246 94994 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely