PDF malware analysis — malicious · 26b1af85f0384f36

MALICIOUS

PDF

11.7 KB

MD5: 945c67537583ff190f4e7ad5e98407db SHA-1: 4e5e913326a87f37a9bde4b5a647b7591301b1f7 SHA-256: 26b1af85f0384f36f28ed1abe37481d461d02b97d39ffe96041e7e3b1c2574fd

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The critical ClamAV heuristic 'Pdf.Exploit.Dropped-78' indicates this PDF is designed to exploit vulnerabilities. The presence of an embedded script payload and an embedded file further supports this. The embedded URLs are benign or unknown, and the document body is not human-readable text, suggesting the exploit is the primary mechanism for delivering the malicious payload.

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` `43a322aa26461eee19f67d249c40bfbb3189e2f349af9220bcecb19367688881`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11228 bytes

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