PDF malware analysis — malicious · 50b5e508a4208bea

MALICIOUS

PDF

11.8 KB

MD5: 70354727407fbcd185c7db4640b2ed37 SHA-1: 16cfd7fcb915e630eccc3485865b22772421839f SHA-256: 50b5e508a4208beaf6787de610fdc6ff9100a5de6ca6a436730e4302ee9e7cd5

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF contains an embedded script payload and an embedded file, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD and PDF_EMBEDDED heuristics. ClamAV detection (Pdf.Exploit.Dropped-78) further confirms its malicious nature. The embedded file, 'embedded_file_obj0008.bin', is likely the delivered payload. The XFA form structure suggests a potential exploit vector.

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` `f63a91334ff1d39663c3e56fb08cc56fe1bb162cc57100e633b31adb5aea8df8`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11303 bytes

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