Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e83a73dd52b36c7…

MALICIOUS

PDF

42.4 KB
MD5: fd2d1f9ded09b336ef21cc84cc10e950 SHA-1: 7cfbba27c315f1476cf3cff09bf89d1b696bde44 SHA-256: 2e83a73dd52b36c70f3c3587d5a863093573bae12ea6d4e716dff653a5307088
186 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The critical ClamAV detection and ML classifier strongly indicate this PDF is malicious, specifically identified as Pdf.Exploit.Agent-36830. The presence of embedded files and scripts points to a delivery mechanism for a secondary payload. The XFA form and embedded file heuristics further support the exploitation of PDF vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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 0xC6 46 bytes
embedded_file_obj0009.bin
0b960c82ee0df62cfa03a26b5fab36747f8c86a04b972de38fe04ee9a389eb6d		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x13C 687 bytes
embedded_file_obj0010.bin
69650a61091a018036679a3439cc6a018b6a91ebe9e0e3a6b36ceb04d6491a4f		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x436 160 bytes
embedded_file_obj0011.bin
64a544ff63a777970efc6f8c44033b0c571c59ee6eb505916f066e2966e346eb		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x521 450 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x72E 190 bytes
embedded_file_obj0014.bin
1029a5a97c3fff2be3d1744bb9c17510ee6a33e734bc7e70b537fce4b23f5bec		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x839 40589 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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