Malicious PDF — malware analysis report

Static analysis result for SHA-256 e47ccac06eb8c24b…

MALICIOUS

PDF

42.9 KB
MD5: 5ffee8d5ac9f3a2a1ddd6a8088162fdb SHA-1: 4ae3d876ce13fb0476d2f347eeec5111dcdcbdf1 SHA-256: e47ccac06eb8c24b3c26b442d6a1549632d174464d151c55bb0e15cf56cba99a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.001 Phishing: Spearphishing Attachment T1027 Obfuscated Files or Information

The PDF file contains embedded scripts and is detected by ClamAV as Pdf.Exploit.Agent-36836, indicating it exploits a known vulnerability. The presence of embedded files and scripts suggests a delivery mechanism for a secondary payload. The document body contains obfuscated JavaScript-like code, further supporting the exploit attempt.

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
d0c00e116eedf1036e4b5855995570163c2450dc9601e81650f2a4dcf07efc36		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x162 687 bytes
embedded_file_obj0010.bin
e1ab66598406464785df1b7c3e4218452dce39c816aca3e1a181e312cbe8a05c		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x45C 93 bytes
embedded_file_obj0011.bin
d298dc1b8f104d55a1c11cbcf4888b9f707c5696c930ce8defab04d1c7fa85b3		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x504 525 bytes
embedded_file_obj0012.bin
6dfc2cfc739bf5cd5514e048143c782a1af7b4c86ed10bd88203471efa9b3fe7		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x75C 389 bytes
embedded_file_obj0014.bin
285a8ec935513d70a5b2c949e37b5065c87475d453869df0e3c073fa0ae981ac		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x92E 40743 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 0xA89F 147 bytes

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