Malicious PDF — malware analysis report

Static analysis result for SHA-256 60b454ef70cc3e72…

MALICIOUS

PDF

11.7 KB
MD5: f0a90b6f46ea4ece2e163daf2310b9fc SHA-1: 205f21f7706086060062a477f508fab92e5928f7 SHA-256: 60b454ef70cc3e72fd40a7a3919710933bdbf0e408603a7dbfabfff7ba8657cb
116 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier, indicating it contains an exploit. The presence of an embedded script payload and an embedded file suggests it is designed to download and execute a secondary payload. While specific URLs were benign, the embedded file name and ClamAV detection name point to a dropped exploit.

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
838aee2a0d3bbf5c9cdcca94d8233593908e55a4e54bef2a3cf8f572934eabb3
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11252 bytes