Malicious PDF — malware analysis report

Static analysis result for SHA-256 e695ae4db3a275d9…

MALICIOUS

PDF

18.3 KB
MD5: 7c12787fe9447cefd1ff3410e26d48ed SHA-1: 3668392397d1d44d81d0e84e3da8db06d6ade940 SHA-256: e695ae4db3a275d91ab065c1250f36c4ca4b645d451f6366e51f89267daa9363
148 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains an embedded script payload and triggers critical ClamAV detections for PDF exploits. The presence of XFA form elements and an embedded script suggests an attempt to execute malicious code upon opening. The embedded URL, while benign in reputation, is present within the document structure.

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
59e55f31780e8d96c23ebbb0b246801eb817836819f12d01b61a45ad92819cd2
pdf-embedded-script PDF raw stream script payload at offset 0x329 18017 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36809
Obfuscation or payload: unlikely