Malicious PDF — malware analysis report

Static analysis result for SHA-256 605948a3f0eaee11…

MALICIOUS

PDF

11.9 KB
MD5: fb5de19008be59e064655c5661ccb36e SHA-1: b5e89f99724843a2518f8ab63d08424860a63c68 SHA-256: 605948a3f0eaee1156383d1b0afd08da2910998232de1cae79bc427b75bebd39
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by ClamAV as Pdf.Exploit.Dropped-78, indicating it contains an exploit. Heuristics confirm the presence of embedded script payloads and an embedded file, suggesting the PDF is designed to deliver a secondary malicious payload. The ML classifier also strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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 script payload in PDF stream low 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 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/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
e5f444af7bf880ef9adc5f0a61780c98a6056177d48f2d713e71c5e4fb67663e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11422 bytes

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