PDF malware analysis — malicious · 53a8743d7d99337e

MALICIOUS

PDF

11.8 KB

MD5: 841c43b9a9bd4123054fa6ddb305f8db SHA-1: 39acfbd5561ab771b39f21c6c2fc30275cd6adfc SHA-256: 53a8743d7d99337e210ef1d6a9516111e2f3879477e3998bdb642fd2b43942c9

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The critical ClamAV detection 'Pdf.Exploit.Dropped-78' strongly indicates malicious intent. The PDF contains an embedded script payload and an embedded file, suggesting it's a dropper or exploit document. While specific URLs were benign or unknown, the presence of these embedded malicious components points to a common PDF exploit delivery pattern.

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` `96a548dafd1575177a2c4c66f0484edf4fc57dc3ecb39dd43c1cfbb2e06f1312`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11333 bytes

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