Malicious PDF — malware analysis report

Static analysis result for SHA-256 58667688e4e16893…

MALICIOUS

PDF

26.3 KB
MD5: 57ab59ebd969806e258d0403a2147753 SHA-1: 46ee8d02b1ae473176204ffcd29777b5e1fc48cb SHA-256: 58667688e4e168935d913be570c7671ab36010d269f78eba938105511d667836
96 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and is detected by ClamAV as Pdf.Exploit.Dropped-78. The embedded file 'embedded_file_obj0008.bin' is likely the delivered payload. The XFA form and embedded file heuristics indicate a malicious structure designed to execute code.

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
29878411a1359c5fce8b713cab25c2b749f52e2742975fa68f23eea638a6c140		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 26211 bytes

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