Malicious PDF — malware analysis report

Static analysis result for SHA-256 8374aeb11aa1d00c…

MALICIOUS

PDF

42.5 KB
MD5: 51b2053d923e51af67ebc1a300563469 SHA-1: 0cc79b8f903153f8186abfce8500261aa7125add SHA-256: 8374aeb11aa1d00cffcaaa17277e3f15bc53a94da2fe4522b95b86f386eaf913
196 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF file contains a critical XFA form with risky executable script, as indicated by multiple high and critical heuristic firings. ClamAV detection confirms this as Pdf.Exploit.Agent-36830. The embedded script payload is likely designed to exploit this vulnerability, leading to the execution of malicious code. The presence of embedded files further suggests a multi-stage attack.

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 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/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
dd81b1a22c1246e67eea7899d49bcb32d13bec35d2f1ea60b1fec3ee5588cf6c		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x14D 687 bytes
embedded_file_obj0010.bin
b9dc770324ae2a66fd1d9c8b9605e3a9ddaae9d1311dffe002d37a59fdc6e4bc		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x447 183 bytes
embedded_file_obj0011.bin
617e348553839036460d624bcfa47d7d2039a9690182d5f2e5cf64896ce622ae		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x549 364 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x700 190 bytes
embedded_file_obj0014.bin
b66087360b682ef550f958dbcfd9ec42b288a681d86b38f83264fa1b058292ba		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x80B 40747 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
78b09463af5cd373870eae2e3e83de87b7f6b659e0d0117ab4c09d90ebb2ad95		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xA780 68 bytes

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