PDF malware analysis — malicious · 1a152b5c907dada5

MALICIOUS

PDF

12.1 KB

MD5: 4bb73c3239d0c8cc35a5b32b536cdd40 SHA-1: 5cfcb3d49682ac8b4beac40d6b63328f83877568 SHA-256: 1a152b5c907dada58268794d6ad3b440792683beb8084bef59f2bfb2e0c14537

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The file is a PDF document identified by ClamAV as Pdf.Exploit.Dropped-78, indicating it contains an exploit. The PDF contains embedded content and an embedded script payload, suggesting it's designed to deliver a secondary malicious payload. The exact nature of the exploit and payload is not fully discernible from the provided heuristics and partial script content.

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` `73dc65398424dede33eaeb91176d9ccb2d8d039a69a34631d62cfbfa3b94de1a`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11663 bytes

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