Malicious PDF — malware analysis report

Static analysis result for SHA-256 a04a0d7317553f5e…

MALICIOUS

PDF

19.2 KB
MD5: 922b2dad9bec9f0420b61887477682f1 SHA-1: 87ab5e624b58f1260059506b06af7d48262d28d4 SHA-256: a04a0d7317553f5e8a09f9f03675c0d56cc4b67203b0c06bed46bef995d33e6c
96 Risk Score

Malware Insights

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

The critical ClamAV detection 'Pdf.Exploit.Dropped-78' strongly indicates a known PDF exploit. The presence of an embedded script payload and an embedded file further supports this, suggesting the PDF is designed to drop and execute a secondary malicious component. The embedded URLs are benign or unknown and do not appear to be directly involved in the exploit.

Heuristics 5

  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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/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
cc8fc35e66dba60398f7aac6fc7f9b1990627c7e5bd2b7254fa25493f5d024c0
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 18902 bytes