PDF malware analysis — malicious · 455a3f61ca4f22f4

MALICIOUS

PDF

11.8 KB

MD5: 72ada8de4a64cebac388c073a1783107 SHA-1: 7973526ea36ad625fde21a9f1d182655d389ac0b SHA-256: 455a3f61ca4f22f484f1074c41791bd5723cf82a186732bf989f20bed249c0eb

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file was detected as malicious by ClamAV with the signature Pdf.Exploit.Dropped-78. Static analysis revealed an embedded script payload and an embedded file, indicating the PDF is designed to exploit vulnerabilities and deliver a secondary payload. The presence of XFA form elements and embedded files are common techniques used in PDF-based exploits.

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` `c6f4c24e29332cd03a2eea638d848661963eccb13bdc7408c987758a8bcf0277`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11300 bytes

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