Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b129b99612dde4f…

MALICIOUS

PDF

43.5 KB
MD5: 648ead0b6dbf643f5aeba04da305c291 SHA-1: fb5db319fb4eee18027ce29df8420b2afc4bc1aa SHA-256: 4b129b99612dde4f46514f87385c0a6c6fd3cfe9722c508e9616f90ab0c9eea3
156 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution

The PDF file contains embedded scripts and is detected by ClamAV as Pdf.Exploit.Agent-36836, indicating it is designed to exploit vulnerabilities. The presence of embedded files and XFA forms further suggests a complex attack vector. The primary IOC is the ClamAV detection signature.

Heuristics 6

  • 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://ns.adobe.com/xtd/
    • 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
04462f810d6eacdacecc9d0a5f3f81bebc722af4415e04da19b520338f642b51		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD7 67 bytes
embedded_file_obj0009.bin
685ec00ba8d1e3a207e91ad1ae9b8c5e3cbc4f5473feab31f711c3ce0e99d74b		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x162 681 bytes
embedded_file_obj0010.bin
e1ab66598406464785df1b7c3e4218452dce39c816aca3e1a181e312cbe8a05c		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x456 93 bytes
embedded_file_obj0011.bin
99a809c6807ae302a33065cfe4bbd515e6da15f4373c11023aba9264f6c498f7		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x4FE 414 bytes
embedded_file_obj0012.bin
6dfc2cfc739bf5cd5514e048143c782a1af7b4c86ed10bd88203471efa9b3fe7		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x6E7 389 bytes
embedded_file_obj0014.bin
7adb3274a469df1b72dbb87b97885ddeb4eec680cb4c92b88f2a123f81c35258		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x8B9 41524 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36836
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
51d6d76eddb1746e412f89f4d1c1b0d620c60fb4a5641c018e93871be63968a9		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xAB37 147 bytes

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