Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed62b23fd12fd3ab…

MALICIOUS

PDF

11.5 KB
MD5: 5b61a49aae562c25c90c7520a8c65efe SHA-1: aab4cf1b062a7e5e7f42dfce1699abf05ce494dd SHA-256: ed62b23fd12fd3ab51a5f3bc7e652adc49d64418409bd9ef3ee9eab1a5e8b693
96 Risk Score

Malware Insights

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

The critical ClamAV detection of 'Pdf.Exploit.Dropped-78' strongly indicates a malicious 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 document body content is not human-readable and does not provide further context on the lure.

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
c96b96ed0e771c0b160196e171e08adee78c22a31967fec3d5d528232502ca51
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11001 bytes