Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e35390a8c4d1ba5…

MALICIOUS

PDF

12.9 KB
MD5: 758c25d2a09e2e08cef8ede78561e8f2 SHA-1: dc93068e02f3d70403ce891388f45b205b429290 SHA-256: 2e35390a8c4d1ba551360567464a8c5a5eb98597c96c51c2652168156d3822d7
196 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.007 JavaScript/VBScript

The PDF file contains XFA forms with embedded JavaScript, triggering a critical heap spray exploit. This indicates the file is designed to execute arbitrary code upon opening. ClamAV detection further confirms its malicious nature. No specific family could be identified, but the exploit mechanism is clear.

Heuristics 7

  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • XFA JavaScript heap-spray exploit code critical PDF_XFA_HEAP_SPRAY
    PDF contains XFA script content with heap-spray or shellcode-like JavaScript markers such as large encoded word sequences, util.pack, large arrays, or spray variable names. This is a weaponised Adobe Reader exploit pattern, not a normal interactive form.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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
51d561daa4a8e392e8745565dd1da47b707c6019ac7e668178d4e4f8ccba9af8		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 12429 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.