Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebab2857716fd63a…

MALICIOUS

PDF

43.0 KB
MD5: e5a5a981207b65f17187c14a8ec3dbda SHA-1: 56fe9a8571553e1a35852ea53befceeaf03846e5 SHA-256: ebab2857716fd63a132820ead91952152063427ec612c0bee7109315a56af90a
188 Risk Score

Malware Insights

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

The file is a PDF document flagged by multiple heuristics as malicious, including an embedded script payload and ML classification. ClamAV detection of 'Pdf.Exploit.Agent-36834' on both the main file and an extracted artifact strongly suggests exploitation of a PDF vulnerability. No document body text was available for analysis, but the presence of embedded scripts and the high confidence score indicate the document is designed to deliver a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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
5b9d5df6f3d9c13a034a6722a024286d1a00b5dfcea628360ba8d8b5f50bafa2		 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
7cf2dc054aa08d1973e5a6eeca76e532c48f39765e69931b8cf2f7a690da0901		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x504 517 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x754 190 bytes
embedded_file_obj0014.bin
39f87a2b6bec5b88fd28244317112103a53154aeff825dbe49e2010c44928536		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x85F 41114 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36834
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
51d6d76eddb1746e412f89f4d1c1b0d620c60fb4a5641c018e93871be63968a9		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xA943 147 bytes

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