PDF malware analysis — malicious · efcb4f72336cbce0

MALICIOUS

PDF

12.0 KB

MD5: 44457b4f3b0962cb4f687d74c815be82 SHA-1: aa71166b0d00a3fa3db43acfbd89a498e3f51e1e SHA-256: efcb4f72336cbce074dbc082120746ff0261477a3d81949f4a084324901bbcdd

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF contains embedded script payloads, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. ClamAV also detected this file as Pdf.Exploit.Dropped-78, suggesting it's a known exploit dropper. The embedded file 'embedded_file_obj0008.bin' is likely the delivered payload. The document body content is obfuscated and does not provide clear user-facing lures.

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.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `97e2540134f19a8312034518f37e6566ee541586ab1acdc4a058fbd60734d13e`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	11486 bytes

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