Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba7663b3e57fe087…

MALICIOUS

PDF

42.7 KB
MD5: 7a3c0be8c4a765980271542be03b94da SHA-1: 80326b79ac454e6c4b7d461d629ffa45d9319e21 SHA-256: ba7663b3e57fe087ad00adade8727664f61fc2c8a614ffa1c38814407b227b60
156 Risk Score

Malware Insights

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

The PDF file contains embedded scripts and is detected by ClamAV as Pdf.Exploit.Agent-36834, indicating it is designed to exploit vulnerabilities. The embedded file heuristic further supports the delivery of a malicious payload. The specific exploit mechanism is not detailed, but the presence of embedded content and ClamAV detection strongly suggests an exploit attempt.

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36834 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36834
  • 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
04462f810d6eacdacecc9d0a5f3f81bebc722af4415e04da19b520338f642b51		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD7 67 bytes
embedded_file_obj0009.bin
475689ea00414538ee0fc3d4eb3a3b9e1469de7a2cc0b1aae2ecae634ae96e28		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x162 690 bytes
embedded_file_obj0010.bin
1870a8c90be73ebe36ae508f57c55ef58407515a4ad8c7e867914369cf2923c9		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x45F 99 bytes
embedded_file_obj0011.bin
d235ec8166a305c2c00540d36219b19c500b91c39defbf9e20458d827e676ca0		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x50D 582 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x79E 190 bytes
embedded_file_obj0014.bin
76c5d5fb6d1734e518c11ea6c32c5dd842deabc953767ed5e982d36f1d0e413e		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x8A9 40767 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36834
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
78b09463af5cd373870eae2e3e83de87b7f6b659e0d0117ab4c09d90ebb2ad95		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xA832 68 bytes

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