Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a454cd862975a1e…

MALICIOUS

PDF

42.4 KB
MD5: 5414d3b24eb1aec1c45834a4a0e9c664 SHA-1: b09d20d138c2e85968a8136246876c4b816a1542 SHA-256: 1a454cd862975a1e1dc46ec4dc456e94318a83ab7db0380f55477eb54c6a2f45
196 Risk Score

Malware Insights

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

The PDF file contains a risky executable script within an XFA form, as indicated by multiple high-severity heuristics. ClamAV detection confirms this as Pdf.Exploit.Agent-36836. The embedded script likely attempts to exploit a vulnerability to download and execute a second-stage payload.

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-36836 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36836
  • 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
cc0f982e33de8e6277768ccf38f1307a2d86e73325d1b5caf04e91d7eb937318		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x14D 690 bytes
embedded_file_obj0010.bin
9b3e3137f794b4b7749fdedcd46db5dc4d1f380440711c5edf7fc00a7458da87		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x44A 125 bytes
embedded_file_obj0011.bin
55e3443f0544d2121f35c9eb28f0c40d1d7e87f160ff827bfa1b6eaed3e21351		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x512 400 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x6ED 190 bytes
embedded_file_obj0014.bin
9182cc38d1824d45ccca828b43e52fb203646aa76608c46c9267d08b6c1f7198		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x7F8 40590 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36836
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
78b09463af5cd373870eae2e3e83de87b7f6b659e0d0117ab4c09d90ebb2ad95		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xA6D0 68 bytes

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