PDF malware analysis — malicious · caab539f36e860f1

MALICIOUS

PDF

11.9 KB

MD5: 953f3d8c4e657c0a0ca0ec03cca1c760 SHA-1: 3332d896c03cb7f401ead4a8cbb0db84eccb6066 SHA-256: caab539f36e860f14ff85e27a6ba3e6fb8abdb775883f61997302c033e68388a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Dropped-78, indicating it exploits a known PDF vulnerability. The presence of an embedded script payload and an embedded file further supports this. The exact nature of the exploit and payload is not fully discernible from the provided heuristics and limited document body 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` `d7dcc143af62d9d710156215530893812ea8e002c5dd6384d2b37c8fc753a237`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	11394 bytes

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