Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7e61267753d7457…

MALICIOUS

PDF

19.1 KB
MD5: 5fa58a2446e24284b9c001139cf59dfb SHA-1: b8c250bc5195cc5a5992b5e6032705ad01ba8a6f SHA-256: a7e61267753d7457695ce9492b89a67e1bf7e9c6886f625b483f5d6482de9a7e
96 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as 'Pdf.Exploit.Dropped-78', indicating it contains an exploit and likely drops a secondary payload. Heuristics confirm the presence of an embedded script payload and an embedded file, which are common delivery mechanisms for malicious content. The embedded URLs are benign or unknown, providing no direct IOCs.

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
04d3c00e845bac07288597a6e3a46d52c3d80a11051178964b17fc4825681e64
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 18822 bytes