Malicious PDF — malware analysis report

Static analysis result for SHA-256 6714f4088db3b607…

MALICIOUS

PDF

43.0 KB
MD5: 21bbdc0af3ea52afaa8d38241279f71e SHA-1: 44a81a9155fcb19fb3c59acdacd95b7254c79521 SHA-256: 6714f4088db3b607d6e7df6fef9885babd72495c9f72869c23983e6e0d761591
216 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains XFA forms with embedded executable scripts, a known vector for exploitation. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically targeting PDF vulnerabilities. The embedded script likely downloads and executes a second-stage payload, contributing to the overall malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • 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 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 script payload in PDF stream low 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 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/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xfdf/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
0a2224c4023b216235b61c3fc4dd17bbfac1ab23a545687f51b97604cf654712		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD7 46 bytes
embedded_file_obj0009.bin
799c97aa966062109ebba1b69271975f9c7efcca9910e480524fe690430a255f		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x14D 687 bytes
embedded_file_obj0010.bin
65e0cd26724bbac83c6001dfbee5727d8d7dc958f364f02a819dd2cf25ba393a		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x447 160 bytes
embedded_file_obj0011.bin
c846960b118846b487bc0e8d537b4ff274735a96ee27d7cf8126d22d7867b96b		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x532 431 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x72C 190 bytes
embedded_file_obj0014.bin
80dbf745c5e247dc31478e46ec6e73a8bf1a53eb975b1571040c84891c2de78f		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x837 41087 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
03172373f36e220deaea3baf69186e2a8bef99633879227f39b2a0b4510201ee		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xA900 138 bytes

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