Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab1ea7f4550612aa…

MALICIOUS

PDF

42.3 KB
MD5: 84b6ab7a10a84f1785a9ac75a6a12f9c SHA-1: 8a256c56240b5da44bc38510d1815841ea630dbc SHA-256: ab1ea7f4550612aabcd48be4b2be1ed4d75848a0593a95820cb54da92c2704b0
156 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The critical ClamAV heuristic firings indicate this PDF file is recognized as a known exploit, specifically 'Pdf.Exploit.Agent-36830'. The presence of embedded script payloads and multiple embedded files further supports the conclusion that this document is designed to deliver malicious content. The embedded URLs are confirmed benign and do not contribute to the maliciousness.

Heuristics 6

  • 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/

Extracted artifacts 6

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
fc51c30b20c3028692b5289e948d9b3d69982c94c081c8e11580e35302dc64d3		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x14D 687 bytes
embedded_file_obj0010.bin
0fe7596619d7974f48bb0928a6efec8cf5bea691a6bfb71cb5fbc41c3ca73638		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x447 168 bytes
embedded_file_obj0011.bin
9e286c8e91ceafae714554ada9d2c164f1cf869c812ba9b289f6a2b3b8b7a072		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x53A 428 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x731 190 bytes
embedded_file_obj0014.bin
627ecac6c5e9e258dd5713f2cae2accfae1aa2c1f5f2ac3a48e709a5159c3ac8		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x83C 40551 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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