PDF malware analysis — malicious · b684db6d395bcbc2

MALICIOUS

PDF

11.8 KB

MD5: 6405701ef37972a2d8470dae415402e7 SHA-1: 3a854f5c520c17f9c8728d6a741907c8ae95b795 SHA-256: b684db6d395bcbc235732f3702daa792b85643a828e69ae949fdc7ac125fb2ba

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF contains an embedded script payload, as indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic and the 'embedded_file_obj0008.bin' artifact. ClamAV detection 'Pdf.Exploit.Dropped-78' strongly suggests malicious intent, likely involving the execution of an embedded exploit. The XFA form and embedded file heuristics further support the nature of the attack.

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` `e00dad3eed5d15b00158284d62c987b377ef3b58cd8dd0f95841e5d2b483944e`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11333 bytes

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