Malicious PDF — malware analysis report

Static analysis result for SHA-256 210ed3443c382735…

MALICIOUS

PDF

14.6 KB
MD5: 43f7a3b407f0e7d64eb5e123a8c334e3 SHA-1: 75deb8becb51f475a435ff553df1d88dc787fd1f SHA-256: 210ed3443c382735ce3a03344b5f8fdccbbda42160749f0cb5238a9e89e44212
148 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment

The PDF file contains an embedded script payload and triggers XFA form heuristics, indicating it's designed to execute malicious code. ClamAV detections further confirm its malicious nature, specifically identifying it as a dropped exploit. The embedded URL is likely part of the exploit chain or payload delivery.

Heuristics 5

  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000329.bin
59ad778a2dc9456ecac504dac74abd4cadde679b799fbcdb06e120a979d0ae76
pdf-embedded-script PDF raw stream script payload at offset 0x329 14190 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36809
Obfuscation or payload: unlikely